/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-NewStatesSleepUncond-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct08.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 12:04:22,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 12:04:22,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 12:04:22,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-01 12:04:22,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-01 12:04:22,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-01 12:04:22,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-01 12:04:22,276 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-NewStatesSleepUncond-NoLbe.epf [2021-07-01 12:04:22,305 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 12:04:22,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 12:04:22,306 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 12:04:22,306 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 12:04:22,308 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 12:04:22,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 12:04:22,308 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 12:04:22,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 12:04:22,309 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 12:04:22,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 12:04:22,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 12:04:22,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 12:04:22,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 12:04:22,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 12:04:22,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 12:04:22,310 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 12:04:22,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 12:04:22,310 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 12:04:22,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 12:04:22,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 12:04:22,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 12:04:22,311 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 12:04:22,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 12:04:22,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 12:04:22,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 12:04:22,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 12:04:22,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 12:04:22,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 12:04:22,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 12:04:22,325 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 12:04:22,326 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 12:04:22,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 12:04:22,326 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-01 12:04:22,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-01 12:04:22,326 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 12:04:22,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 12:04:22,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 12:04:22,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 12:04:22,632 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 12:04:22,633 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 12:04:22,634 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct08.bpl [2021-07-01 12:04:22,634 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct08.bpl' [2021-07-01 12:04:22,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 12:04:22,661 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 12:04:22,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 12:04:22,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 12:04:22,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 12:04:22,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:04:22" (1/1) ... [2021-07-01 12:04:22,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:04:22" (1/1) ... [2021-07-01 12:04:22,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 12:04:22,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 12:04:22,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 12:04:22,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 12:04:22,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:04:22" (1/1) ... [2021-07-01 12:04:22,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:04:22" (1/1) ... [2021-07-01 12:04:22,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:04:22" (1/1) ... [2021-07-01 12:04:22,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:04:22" (1/1) ... [2021-07-01 12:04:22,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:04:22" (1/1) ... [2021-07-01 12:04:22,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:04:22" (1/1) ... [2021-07-01 12:04:22,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:04:22" (1/1) ... [2021-07-01 12:04:22,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 12:04:22,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 12:04:22,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 12:04:22,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 12:04:22,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:04:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 12:04:22,776 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-01 12:04:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-01 12:04:22,776 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-01 12:04:22,776 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 12:04:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 12:04:22,776 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 12:04:22,777 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 12:04:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 12:04:22,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 12:04:22,777 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 12:04:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 12:04:22,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 12:04:22,778 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-01 12:04:23,038 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 12:04:23,038 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-01 12:04:23,039 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-07-01 12:04:23,039 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-01 12:04:23,041 INFO L202 PluginConnector]: Adding new model bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:04:23 BoogieIcfgContainer [2021-07-01 12:04:23,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 12:04:23,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 12:04:23,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 12:04:23,044 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 12:04:23,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:04:22" (1/2) ... [2021-07-01 12:04:23,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d43c9e and model type bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:04:23, skipping insertion in model container [2021-07-01 12:04:23,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:04:23" (2/2) ... [2021-07-01 12:04:23,046 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-correct08.bpl [2021-07-01 12:04:23,050 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 12:04:23,050 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 12:04:23,050 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 12:04:23,051 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 12:04:23,095 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 12:04:23,111 INFO L255 AbstractCegarLoop]: Starting to check reachability of 9 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 12:04:23,154 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 12:04:23,154 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 12:04:23,154 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 12:04:23,154 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 12:04:23,154 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 12:04:23,155 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 12:04:23,155 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 12:04:23,155 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 12:04:35,182 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-01 12:04:35,183 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 12:04:35,188 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 12:04:35,189 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 12:04:35,189 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 12:04:35,189 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 12:04:35,189 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 12:04:35,189 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 12:04:35,189 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 12:04:35,189 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-01 12:04:35,197 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:04:35,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:04:35,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1461605507, now seen corresponding path program 1 times [2021-07-01 12:04:35,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:04:35,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243269329] [2021-07-01 12:04:35,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:04:35,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:04:35,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 12:04:35,282 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 12:04:35,282 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243269329] [2021-07-01 12:04:35,283 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243269329] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 12:04:35,283 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 12:04:35,283 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 12:04:35,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653065505] [2021-07-01 12:04:35,287 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 12:04:35,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 12:04:35,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 12:04:35,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 12:04:35,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:04:35,297 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 12:04:35,298 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 12:04:35,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:04:35,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:35,527 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 12:04:35,527 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:04:35,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:04:35,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1804539990, now seen corresponding path program 1 times [2021-07-01 12:04:35,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:04:35,528 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405752203] [2021-07-01 12:04:35,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:04:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:04:35,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 12:04:35,537 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 12:04:35,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405752203] [2021-07-01 12:04:35,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405752203] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 12:04:35,538 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 12:04:35,538 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-01 12:04:35,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827841487] [2021-07-01 12:04:35,538 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 12:04:35,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 12:04:35,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 12:04:35,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 12:04:35,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:04:35,539 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 12:04:35,539 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 12:04:35,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:35,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:04:35,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:35,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:35,655 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 12:04:35,655 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:04:35,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:04:35,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1415687460, now seen corresponding path program 1 times [2021-07-01 12:04:35,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:04:35,656 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814739750] [2021-07-01 12:04:35,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:04:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:04:35,855 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2021-07-01 12:04:35,925 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-01 12:04:35,926 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 12:04:35,926 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814739750] [2021-07-01 12:04:35,926 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814739750] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 12:04:35,926 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 12:04:35,926 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-01 12:04:35,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008369463] [2021-07-01 12:04:35,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-01 12:04:35,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 12:04:35,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-01 12:04:35,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-07-01 12:04:35,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:04:35,927 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 12:04:35,928 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 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) [2021-07-01 12:04:35,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:35,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:35,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:04:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:36,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 12:04:36,339 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-01 12:04:36,340 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:04:36,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:04:36,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1235889126, now seen corresponding path program 1 times [2021-07-01 12:04:36,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:04:36,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802975061] [2021-07-01 12:04:36,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:04:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:04:36,450 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-01 12:04:36,450 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 12:04:36,450 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802975061] [2021-07-01 12:04:36,451 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802975061] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 12:04:36,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 12:04:36,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-01 12:04:36,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579141655] [2021-07-01 12:04:36,454 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-01 12:04:36,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 12:04:36,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-01 12:04:36,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-07-01 12:04:36,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:04:36,456 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 12:04:36,457 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 12:04:36,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:36,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:36,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 12:04:36,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:04:36,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:36,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:36,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 12:04:36,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 12:04:36,722 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 12:04:36,722 INFO L430 AbstractCegarLoop]: === Iteration 5 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:04:36,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:04:36,722 INFO L82 PathProgramCache]: Analyzing trace with hash 520175993, now seen corresponding path program 1 times [2021-07-01 12:04:36,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:04:36,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979970190] [2021-07-01 12:04:36,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:04:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:04:36,831 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-07-01 12:04:36,831 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 12:04:36,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979970190] [2021-07-01 12:04:36,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979970190] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 12:04:36,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191476183] [2021-07-01 12:04:36,831 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 [2021-07-01 12:04:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:04:36,894 WARN L261 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 64 conjunts are in the unsatisfiable core [2021-07-01 12:04:36,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 12:04:37,121 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-07-01 12:04:37,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191476183] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 12:04:37,122 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 12:04:37,122 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-07-01 12:04:37,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414362664] [2021-07-01 12:04:37,122 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-01 12:04:37,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 12:04:37,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-01 12:04:37,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-07-01 12:04:37,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:04:37,124 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 12:04:37,124 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 5.533333333333333) internal successors, (83), 14 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 12:04:37,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:37,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:37,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 12:04:37,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 12:04:37,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:04:37,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:37,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:37,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 12:04:37,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 12:04:37,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 12:04:38,201 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 12:04:38,202 INFO L430 AbstractCegarLoop]: === Iteration 6 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:04:38,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:04:38,202 INFO L82 PathProgramCache]: Analyzing trace with hash -938794882, now seen corresponding path program 1 times [2021-07-01 12:04:38,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:04:38,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679124363] [2021-07-01 12:04:38,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:04:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:04:38,651 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 340 proven. 162 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2021-07-01 12:04:38,651 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 12:04:38,651 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679124363] [2021-07-01 12:04:38,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679124363] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 12:04:38,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880049986] [2021-07-01 12:04:38,652 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 [2021-07-01 12:04:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:04:38,745 WARN L261 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 279 conjunts are in the unsatisfiable core [2021-07-01 12:04:38,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 12:04:39,060 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 2 proven. 500 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2021-07-01 12:04:39,060 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880049986] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 12:04:39,061 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 12:04:39,061 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-07-01 12:04:39,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435191713] [2021-07-01 12:04:39,061 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-01 12:04:39,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 12:04:39,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-01 12:04:39,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2021-07-01 12:04:39,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:04:39,062 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 12:04:39,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.529411764705882) internal successors, (111), 16 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 12:04:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:39,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 12:04:39,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 12:04:39,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 12:04:39,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:04:42,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:42,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:42,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 12:04:42,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 12:04:42,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 12:04:42,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-01 12:04:42,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 12:04:42,569 INFO L430 AbstractCegarLoop]: === Iteration 7 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:04:42,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:04:42,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1166173750, now seen corresponding path program 1 times [2021-07-01 12:04:42,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:04:42,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108923447] [2021-07-01 12:04:42,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:04:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:04:45,016 INFO L134 CoverageAnalysis]: Checked inductivity of 11905 backedges. 5411 proven. 2439 refuted. 0 times theorem prover too weak. 4055 trivial. 0 not checked. [2021-07-01 12:04:45,017 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 12:04:45,017 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108923447] [2021-07-01 12:04:45,017 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108923447] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 12:04:45,017 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686963224] [2021-07-01 12:04:45,017 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 [2021-07-01 12:04:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:04:45,410 WARN L261 TraceCheckSpWp]: Trace formula consists of 1293 conjuncts, 1049 conjunts are in the unsatisfiable core [2021-07-01 12:04:45,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 12:04:46,257 INFO L134 CoverageAnalysis]: Checked inductivity of 11905 backedges. 2 proven. 7848 refuted. 0 times theorem prover too weak. 4055 trivial. 0 not checked. [2021-07-01 12:04:46,257 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686963224] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 12:04:46,257 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 12:04:46,257 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-07-01 12:04:46,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667934240] [2021-07-01 12:04:46,258 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-01 12:04:46,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 12:04:46,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-01 12:04:46,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2021-07-01 12:04:46,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:04:46,258 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 12:04:46,259 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 7.2105263157894735) internal successors, (137), 18 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 12:04:46,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:46,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:04:46,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 12:04:46,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 12:04:46,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 12:04:46,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-01 12:04:46,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:05:04,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:05:04,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:05:04,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 12:05:04,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 12:05:04,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 12:05:04,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-01 12:05:04,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-01 12:05:04,634 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-07-01 12:05:04,634 INFO L430 AbstractCegarLoop]: === Iteration 8 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:05:04,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:05:04,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1926322927, now seen corresponding path program 1 times [2021-07-01 12:05:04,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:05:04,635 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170184060] [2021-07-01 12:05:04,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:05:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:07:11,956 INFO L134 CoverageAnalysis]: Checked inductivity of 190198 backedges. 92906 proven. 38376 refuted. 0 times theorem prover too weak. 58916 trivial. 0 not checked. [2021-07-01 12:07:11,957 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 12:07:11,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170184060] [2021-07-01 12:07:11,957 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170184060] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 12:07:11,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396092972] [2021-07-01 12:07:11,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-01 12:07:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:07:20,124 WARN L261 TraceCheckSpWp]: Trace formula consists of 4899 conjuncts, 4054 conjunts are in the unsatisfiable core [2021-07-01 12:07:20,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 12:07:22,486 INFO L134 CoverageAnalysis]: Checked inductivity of 190198 backedges. 2 proven. 131280 refuted. 0 times theorem prover too weak. 58916 trivial. 0 not checked. [2021-07-01 12:07:22,486 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396092972] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 12:07:22,486 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 12:07:22,486 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-07-01 12:07:22,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574336988] [2021-07-01 12:07:22,488 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-01 12:07:22,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 12:07:22,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-01 12:07:22,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=283, Unknown=0, NotChecked=0, Total=420 [2021-07-01 12:07:22,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:07:22,488 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 12:07:22,489 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 8.047619047619047) internal successors, (169), 20 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 12:07:22,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:07:22,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:07:22,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-01 12:07:22,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-01 12:07:22,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-01 12:07:22,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-01 12:07:22,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-01 12:07:22,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:09:35,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:09:35,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:09:35,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 12:09:35,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 12:09:35,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-01 12:09:35,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-01 12:09:35,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-01 12:09:35,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-01 12:09:35,714 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 12:09:35,714 INFO L430 AbstractCegarLoop]: === Iteration 9 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:09:35,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:09:35,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1264622716, now seen corresponding path program 1 times [2021-07-01 12:09:35,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:09:35,715 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040600695] [2021-07-01 12:09:35,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:10:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat