/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 04:48:54,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 04:48:54,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 04:48:54,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 04:48:54,598 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf [2021-07-14 04:48:54,633 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 04:48:54,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 04:48:54,634 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 04:48:54,634 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 04:48:54,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 04:48:54,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 04:48:54,637 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 04:48:54,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 04:48:54,637 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 04:48:54,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 04:48:54,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 04:48:54,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 04:48:54,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 04:48:54,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 04:48:54,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 04:48:54,639 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 04:48:54,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 04:48:54,639 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 04:48:54,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 04:48:54,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 04:48:54,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 04:48:54,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 04:48:54,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 04:48:54,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 04:48:54,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 04:48:54,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 04:48:54,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 04:48:54,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 04:48:54,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 04:48:54,654 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 04:48:54,654 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 04:48:54,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 04:48:54,655 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-14 04:48:54,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 04:48:54,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 04:48:55,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 04:48:55,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 04:48:55,008 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 04:48:55,009 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 04:48:55,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct10.bpl [2021-07-14 04:48:55,010 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-correct10.bpl' [2021-07-14 04:48:55,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 04:48:55,044 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 04:48:55,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 04:48:55,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 04:48:55,045 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 04:48:55,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-correct10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:55" (1/1) ... [2021-07-14 04:48:55,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-correct10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:55" (1/1) ... [2021-07-14 04:48:55,082 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 04:48:55,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 04:48:55,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 04:48:55,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 04:48:55,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-correct10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:55" (1/1) ... [2021-07-14 04:48:55,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-correct10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:55" (1/1) ... [2021-07-14 04:48:55,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-correct10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:55" (1/1) ... [2021-07-14 04:48:55,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-correct10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:55" (1/1) ... [2021-07-14 04:48:55,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-correct10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:55" (1/1) ... [2021-07-14 04:48:55,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-correct10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:55" (1/1) ... [2021-07-14 04:48:55,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-correct10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:55" (1/1) ... [2021-07-14 04:48:55,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 04:48:55,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 04:48:55,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 04:48:55,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 04:48:55,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-correct10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 04:48:55,174 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-14 04:48:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-14 04:48:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-14 04:48:55,174 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-14 04:48:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-14 04:48:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-14 04:48:55,175 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-14 04:48:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-14 04:48:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-14 04:48:55,175 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 04:48:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 04:48:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 04:48:55,176 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 04:48:55,488 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 04:48:55,489 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-14 04:48:55,497 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-07-14 04:48:55,498 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-14 04:48:55,499 INFO L202 PluginConnector]: Adding new model bluetooth-correct10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:48:55 BoogieIcfgContainer [2021-07-14 04:48:55,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 04:48:55,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 04:48:55,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 04:48:55,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 04:48:55,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 04:48:55" (1/2) ... [2021-07-14 04:48:55,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b1333a6 and model type bluetooth-correct10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 04:48:55, skipping insertion in model container [2021-07-14 04:48:55,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-correct10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:48:55" (2/2) ... [2021-07-14 04:48:55,509 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-correct10.bpl [2021-07-14 04:48:55,518 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 04:48:55,518 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 04:48:55,519 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 04:48:55,520 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 04:48:55,587 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-14 04:48:55,608 INFO L255 AbstractCegarLoop]: Starting to check reachability of 11 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 04:48:55,665 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 04:48:55,665 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 04:48:55,665 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 04:48:55,665 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 04:48:55,666 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 04:48:55,666 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 04:48:55,666 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 04:48:55,666 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 04:50:55,058 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-14 04:50:55,060 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 [2021-07-14 04:50:55,075 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 04:50:55,075 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 04:50:55,075 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 04:50:55,075 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 04:50:55,075 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 04:50:55,075 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 04:50:55,075 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 04:50:55,075 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-14 04:50:55,080 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:50:55,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:50:55,085 INFO L82 PathProgramCache]: Analyzing trace with hash 2129358608, now seen corresponding path program 1 times [2021-07-14 04:50:55,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:50:55,095 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880279651] [2021-07-14 04:50:55,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:50:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:50:55,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 04:50:55,211 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:50:55,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880279651] [2021-07-14 04:50:55,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880279651] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 04:50:55,212 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 04:50:55,212 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 04:50:55,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088713367] [2021-07-14 04:50:55,218 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 04:50:55,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:50:55,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 04:50:55,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 04:50:55,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:50:55,232 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:50:55,233 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) [2021-07-14 04:50:55,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:50:56,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:50:56,621 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 04:50:56,621 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:50:56,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:50:56,624 INFO L82 PathProgramCache]: Analyzing trace with hash 882416455, now seen corresponding path program 1 times [2021-07-14 04:50:56,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:50:56,625 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380200504] [2021-07-14 04:50:56,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:50:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:50:56,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 04:50:56,652 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:50:56,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380200504] [2021-07-14 04:50:56,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380200504] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 04:50:56,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 04:50:56,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-14 04:50:56,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65355247] [2021-07-14 04:50:56,655 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 04:50:56,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:50:56,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 04:50:56,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 04:50:56,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:50:56,657 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:50:56,657 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) [2021-07-14 04:50:56,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:50:56,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:50:57,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:50:57,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:50:57,348 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 04:50:57,348 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 04:50:57,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 04:50:57,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1143741855, now seen corresponding path program 1 times [2021-07-14 04:50:57,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 04:50:57,349 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457983463] [2021-07-14 04:50:57,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 04:50:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 04:50:57,588 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 04:50:57,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 04:50:57,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457983463] [2021-07-14 04:50:57,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457983463] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 04:50:57,589 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 04:50:57,589 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 04:50:57,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969675536] [2021-07-14 04:50:57,590 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 04:50:57,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 04:50:57,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 04:50:57,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-07-14 04:50:57,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 04:50:57,591 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 04:50:57,592 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 04:50:57,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:50:57,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 04:50:57,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.