/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/weaver-benchmarks/generated/test/easy6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 02:41:54,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 02:41:54,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 02:41:54,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-10 02:41:54,467 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 [2021-07-10 02:41:54,529 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 02:41:54,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 02:41:54,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 02:41:54,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 02:41:54,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 02:41:54,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 02:41:54,533 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 02:41:54,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 02:41:54,533 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 02:41:54,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 02:41:54,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 02:41:54,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 02:41:54,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 02:41:54,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 02:41:54,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 02:41:54,535 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 02:41:54,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 02:41:54,536 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 02:41:54,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 02:41:54,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 02:41:54,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 02:41:54,536 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 02:41:54,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 02:41:54,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 02:41:54,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 02:41:54,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 02:41:54,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 02:41:54,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 02:41:54,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 02:41:54,538 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 02:41:54,538 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 02:41:54,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 02:41:54,552 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-10 02:41:54,553 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 02:41:55,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 02:41:55,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 02:41:55,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 02:41:55,194 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 02:41:55,213 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 02:41:55,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl [2021-07-10 02:41:55,215 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl' [2021-07-10 02:41:55,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 02:41:55,258 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 02:41:55,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 02:41:55,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 02:41:55,272 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 02:41:55,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:41:55" (1/1) ... [2021-07-10 02:41:55,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:41:55" (1/1) ... [2021-07-10 02:41:55,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 02:41:55,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 02:41:55,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 02:41:55,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 02:41:55,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:41:55" (1/1) ... [2021-07-10 02:41:55,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:41:55" (1/1) ... [2021-07-10 02:41:55,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:41:55" (1/1) ... [2021-07-10 02:41:55,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:41:55" (1/1) ... [2021-07-10 02:41:55,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:41:55" (1/1) ... [2021-07-10 02:41:55,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:41:55" (1/1) ... [2021-07-10 02:41:55,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:41:55" (1/1) ... [2021-07-10 02:41:55,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 02:41:55,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 02:41:55,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 02:41:55,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 02:41:55,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:41:55" (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 [2021-07-10 02:41:55,521 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 02:41:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 02:41:55,521 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 02:41:55,521 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 02:41:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 02:41:55,521 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 02:41:55,522 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 02:41:55,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 02:41:55,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 02:41:55,523 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 02:41:55,816 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 02:41:55,816 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-10 02:41:55,818 INFO L202 PluginConnector]: Adding new model easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:41:55 BoogieIcfgContainer [2021-07-10 02:41:55,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 02:41:55,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 02:41:55,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 02:41:55,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 02:41:55,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:41:55" (1/2) ... [2021-07-10 02:41:55,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2711ca57 and model type easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:41:55, skipping insertion in model container [2021-07-10 02:41:55,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:41:55" (2/2) ... [2021-07-10 02:41:55,842 INFO L111 eAbstractionObserver]: Analyzing ICFG easy6.wvr.bpl [2021-07-10 02:41:55,847 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 02:41:55,848 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 02:41:55,848 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 02:41:55,848 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 02:41:55,942 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-10 02:41:55,995 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-10 02:41:56,152 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 02:41:56,152 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 02:41:56,152 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 02:41:56,152 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 02:41:56,152 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 02:41:56,170 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 02:41:56,171 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 02:41:56,171 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 02:41:56,344 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:41:56,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:41:56,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1704869927, now seen corresponding path program 1 times [2021-07-10 02:41:56,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:41:56,361 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542774349] [2021-07-10 02:41:56,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:41:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:41:56,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:41:56,907 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:41:56,907 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542774349] [2021-07-10 02:41:56,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542774349] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 02:41:56,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 02:41:56,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-10 02:41:56,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257006504] [2021-07-10 02:41:56,913 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-10 02:41:56,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:41:56,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-10 02:41:56,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-10 02:41:56,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:41:56,946 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:41:56,957 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-07-10 02:41:56,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:41:57,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:41:57,223 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 02:41:57,224 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:41:57,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:41:57,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1111502767, now seen corresponding path program 2 times [2021-07-10 02:41:57,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:41:57,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408237974] [2021-07-10 02:41:57,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:41:57,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:41:57,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:41:57,358 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:41:57,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408237974] [2021-07-10 02:41:57,359 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408237974] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 02:41:57,359 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 02:41:57,359 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-10 02:41:57,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658838041] [2021-07-10 02:41:57,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-10 02:41:57,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:41:57,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-10 02:41:57,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-07-10 02:41:57,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:41:57,377 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:41:57,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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) [2021-07-10 02:41:57,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:41:57,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:41:57,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:41:57,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:41:57,587 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-10 02:41:57,587 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:41:57,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:41:57,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1741582707, now seen corresponding path program 3 times [2021-07-10 02:41:57,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:41:57,588 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232568648] [2021-07-10 02:41:57,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:41:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:41:57,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:41:57,613 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:41:57,613 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232568648] [2021-07-10 02:41:57,613 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232568648] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 02:41:57,613 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 02:41:57,613 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-10 02:41:57,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287127105] [2021-07-10 02:41:57,615 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 02:41:57,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:41:57,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 02:41:57,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 02:41:57,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:41:57,616 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:41:57,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-07-10 02:41:57,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:41:57,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:41:57,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:41:57,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:41:57,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:41:57,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:41:57,654 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-10 02:41:57,655 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:41:57,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:41:57,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1401402475, now seen corresponding path program 4 times [2021-07-10 02:41:57,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:41:57,656 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118519669] [2021-07-10 02:41:57,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:41:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:41:57,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:41:57,776 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:41:57,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118519669] [2021-07-10 02:41:57,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118519669] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 02:41:57,778 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 02:41:57,778 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-10 02:41:57,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262959960] [2021-07-10 02:41:57,779 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-10 02:41:57,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:41:57,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-10 02:41:57,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-07-10 02:41:57,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:41:57,781 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:41:57,781 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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) [2021-07-10 02:41:57,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:41:57,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:41:57,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:41:57,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:41:57,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:41:57,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:41:57,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:41:57,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:41:57,957 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-10 02:41:57,957 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:41:57,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:41:57,960 INFO L82 PathProgramCache]: Analyzing trace with hash 266079961, now seen corresponding path program 5 times [2021-07-10 02:41:57,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:41:57,961 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542482284] [2021-07-10 02:41:57,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:41:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:41:58,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:41:58,065 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:41:58,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542482284] [2021-07-10 02:41:58,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542482284] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 02:41:58,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 02:41:58,065 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-10 02:41:58,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060417925] [2021-07-10 02:41:58,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-10 02:41:58,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:41:58,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-10 02:41:58,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-10 02:41:58,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:41:58,067 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:41:58,067 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-07-10 02:41:58,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:41:58,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:41:58,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:41:58,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:41:58,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:41:58,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:41:58,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:41:58,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:41:58,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:41:58,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:41:58,162 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-10 02:41:58,163 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:41:58,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:41:58,163 INFO L82 PathProgramCache]: Analyzing trace with hash 158977719, now seen corresponding path program 6 times [2021-07-10 02:41:58,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:41:58,163 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111335527] [2021-07-10 02:41:58,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:41:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:41:58,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:41:58,181 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:41:58,181 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111335527] [2021-07-10 02:41:58,181 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111335527] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 02:41:58,182 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 02:41:58,182 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-10 02:41:58,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386961591] [2021-07-10 02:41:58,182 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 02:41:58,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:41:58,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 02:41:58,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 02:41:58,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:41:58,183 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:41:58,184 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-07-10 02:41:58,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:41:58,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:41:58,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:41:58,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:41:58,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:41:58,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:41:58,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:41:58,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:41:58,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:41:58,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:41:58,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:41:58,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:41:58,229 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-10 02:41:58,229 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:41:58,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:41:58,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1021850567, now seen corresponding path program 7 times [2021-07-10 02:41:58,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:41:58,230 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258938125] [2021-07-10 02:41:58,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:41:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:41:58,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:41:58,291 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:41:58,291 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258938125] [2021-07-10 02:41:58,292 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258938125] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 02:41:58,292 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 02:41:58,292 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-10 02:41:58,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123082228] [2021-07-10 02:41:58,292 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-10 02:41:58,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:41:58,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-10 02:41:58,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-07-10 02:41:58,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:41:58,295 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:41:58,295 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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) [2021-07-10 02:41:58,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:41:58,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:41:58,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:41:58,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:41:58,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:41:58,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:41:58,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:41:58,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:41:58,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:41:58,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:41:58,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:41:58,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:41:58,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:41:58,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:41:58,451 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-10 02:41:58,465 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-10 02:41:58,468 INFO L202 PluginConnector]: Adding new model easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 02:41:58 BasicIcfg [2021-07-10 02:41:58,468 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-10 02:41:58,469 INFO L168 Benchmark]: Toolchain (without parser) took 3212.19 ms. Allocated memory is still 172.0 MB. Free memory was 151.4 MB in the beginning and 60.4 MB in the end (delta: 91.0 MB). Peak memory consumption was 92.1 MB. Max. memory is 8.0 GB. [2021-07-10 02:41:58,469 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 172.0 MB. Free memory is still 152.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-10 02:41:58,469 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.76 ms. Allocated memory is still 172.0 MB. Free memory was 151.4 MB in the beginning and 149.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-10 02:41:58,470 INFO L168 Benchmark]: Boogie Preprocessor took 29.95 ms. Allocated memory is still 172.0 MB. Free memory was 149.9 MB in the beginning and 149.1 MB in the end (delta: 785.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-10 02:41:58,470 INFO L168 Benchmark]: RCFGBuilder took 456.68 ms. Allocated memory is still 172.0 MB. Free memory was 148.9 MB in the beginning and 137.3 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-10 02:41:58,470 INFO L168 Benchmark]: TraceAbstraction took 2648.71 ms. Allocated memory is still 172.0 MB. Free memory was 136.9 MB in the beginning and 60.4 MB in the end (delta: 76.5 MB). Peak memory consumption was 77.4 MB. Max. memory is 8.0 GB. [2021-07-10 02:41:58,471 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 172.0 MB. Free memory is still 152.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 58.76 ms. Allocated memory is still 172.0 MB. Free memory was 151.4 MB in the beginning and 149.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.95 ms. Allocated memory is still 172.0 MB. Free memory was 149.9 MB in the beginning and 149.1 MB in the end (delta: 785.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 456.68 ms. Allocated memory is still 172.0 MB. Free memory was 148.9 MB in the beginning and 137.3 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2648.71 ms. Allocated memory is still 172.0 MB. Free memory was 136.9 MB in the beginning and 60.4 MB in the end (delta: 76.5 MB). Peak memory consumption was 77.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 878, positive: 825, positive conditional: 825, positive unconditional: 0, negative: 53, negative conditional: 53, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 878, positive: 825, positive conditional: 825, positive unconditional: 0, negative: 53, negative conditional: 53, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 878, positive: 824, positive conditional: 0, positive unconditional: 824, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 117, positive: 106, positive conditional: 0, positive unconditional: 106, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 117, positive: 103, positive conditional: 0, positive unconditional: 103, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 39, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 35, negative conditional: 24, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 152, positive: 64, positive conditional: 3, positive unconditional: 61, negative: 88, negative conditional: 61, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 878, positive: 718, positive conditional: 0, positive unconditional: 718, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 117, unknown conditional: 0, unknown unconditional: 117] , Statistics on independence cache: Total cache size (in pairs): 142, Positive cache size: 107, Positive conditional cache size: 1, Positive unconditional cache size: 106, Negative cache size: 35, Negative conditional cache size: 24, Negative unconditional cache size: 11, SemanticConditionEliminator.Independence Queries: [ total: 251, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 250, negative conditional: 77, negative unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 251, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 250, negative conditional: 77, negative unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 39, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 35, negative conditional: 24, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 152, positive: 64, positive conditional: 3, positive unconditional: 61, negative: 88, negative conditional: 61, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 251, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 226, negative conditional: 53, negative unconditional: 173, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 142, Positive cache size: 107, Positive conditional cache size: 1, Positive unconditional cache size: 106, Negative cache size: 35, Negative conditional cache size: 24, Negative unconditional cache size: 11, Eliminated conditions: 173, SemanticConditionEliminator.Independence Queries: [ total: 251, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 250, negative conditional: 77, negative unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 251, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 250, negative conditional: 77, negative unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 39, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 35, negative conditional: 24, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 152, positive: 64, positive conditional: 3, positive unconditional: 61, negative: 88, negative conditional: 61, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 251, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 226, negative conditional: 53, negative unconditional: 173, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 142, Positive cache size: 107, Positive conditional cache size: 1, Positive unconditional cache size: 106, Negative cache size: 35, Negative conditional cache size: 24, Negative unconditional cache size: 11, Eliminated conditions: 173, SemanticConditionEliminator.Independence Queries: [ total: 251, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 250, negative conditional: 77, negative unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 251, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 250, negative conditional: 77, negative unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 39, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 35, negative conditional: 24, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 152, positive: 64, positive conditional: 3, positive unconditional: 61, negative: 88, negative conditional: 61, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 251, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 226, negative conditional: 53, negative unconditional: 173, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 142, Positive cache size: 107, Positive conditional cache size: 1, Positive unconditional cache size: 106, Negative cache size: 35, Negative conditional cache size: 24, Negative unconditional cache size: 11, Eliminated conditions: 173, SemanticConditionEliminator.Independence Queries: [ total: 251, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 250, negative conditional: 77, negative unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 251, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 250, negative conditional: 77, negative unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 39, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 35, negative conditional: 24, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 152, positive: 64, positive conditional: 3, positive unconditional: 61, negative: 88, negative conditional: 61, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 251, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 226, negative conditional: 53, negative unconditional: 173, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 142, Positive cache size: 107, Positive conditional cache size: 1, Positive unconditional cache size: 106, Negative cache size: 35, Negative conditional cache size: 24, Negative unconditional cache size: 11, Eliminated conditions: 173, SemanticConditionEliminator.Independence Queries: [ total: 251, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 250, negative conditional: 77, negative unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 251, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 250, negative conditional: 77, negative unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 39, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 35, negative conditional: 24, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 152, positive: 64, positive conditional: 3, positive unconditional: 61, negative: 88, negative conditional: 61, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 251, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 226, negative conditional: 53, negative unconditional: 173, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 142, Positive cache size: 107, Positive conditional cache size: 1, Positive unconditional cache size: 106, Negative cache size: 35, Negative conditional cache size: 24, Negative unconditional cache size: 11, Eliminated conditions: 173, SemanticConditionEliminator.Independence Queries: [ total: 251, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 250, negative conditional: 77, negative unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 251, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 250, negative conditional: 77, negative unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 39, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 35, negative conditional: 24, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 152, positive: 64, positive conditional: 3, positive unconditional: 61, negative: 88, negative conditional: 61, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 251, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 226, negative conditional: 53, negative unconditional: 173, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 142, Positive cache size: 107, Positive conditional cache size: 1, Positive unconditional cache size: 106, Negative cache size: 35, Negative conditional cache size: 24, Negative unconditional cache size: 11, Eliminated conditions: 173, SemanticConditionEliminator.Independence Queries: [ total: 251, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 250, negative conditional: 77, negative unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 251, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 250, negative conditional: 77, negative unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 39, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 35, negative conditional: 24, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 152, positive: 64, positive conditional: 3, positive unconditional: 61, negative: 88, negative conditional: 61, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 251, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 226, negative conditional: 53, negative unconditional: 173, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 142, Positive cache size: 107, Positive conditional cache size: 1, Positive unconditional cache size: 106, Negative cache size: 35, Negative conditional cache size: 24, Negative unconditional cache size: 11, Eliminated conditions: 173 ], Maximal queried relation: 7, Independence queries for same thread: 0 - PositiveResult [Line: 60]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 60 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2413.1ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 33.9ms, PartialOrderReductionTime: 1118.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 41.8ms SsaConstructionTime, 127.3ms SatisfiabilityAnalysisTime, 677.6ms InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 756 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...