/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-NewStatesSleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-5.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 10:40:07,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 10:40:07,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 10:40:07,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-14 10:40:07,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-14 10:40:07,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-14 10:40:07,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-14 10:40:07,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-14 10:40:07,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-14 10:40:07,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-14 10:40:07,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-14 10:40:07,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-14 10:40:07,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 10:40:07,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 10:40:07,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 10:40:07,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 10:40:07,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 10:40:07,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 10:40:07,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 10:40:07,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 10:40:07,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 10:40:07,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 10:40:07,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 10:40:07,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 10:40:07,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-14 10:40:07,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-14 10:40:07,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-14 10:40:07,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-14 10:40:07,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-14 10:40:07,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-14 10:40:07,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-14 10:40:07,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-14 10:40:07,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-14 10:40:07,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-14 10:40:07,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-14 10:40:07,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-14 10:40:07,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-14 10:40:07,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-14 10:40:07,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 10:40:07,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 10:40:07,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 10:40:07,233 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-NewStatesSleepPersistent-NoLbe.epf [2021-07-14 10:40:07,262 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 10:40:07,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 10:40:07,263 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 10:40:07,263 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 10:40:07,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 10:40:07,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 10:40:07,265 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 10:40:07,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 10:40:07,266 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 10:40:07,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 10:40:07,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 10:40:07,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 10:40:07,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 10:40:07,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 10:40:07,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 10:40:07,267 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 10:40:07,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 10:40:07,267 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 10:40:07,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 10:40:07,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 10:40:07,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 10:40:07,267 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 10:40:07,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 10:40:07,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 10:40:07,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 10:40:07,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 10:40:07,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 10:40:07,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 10:40:07,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 10:40:07,268 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 10:40:07,268 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 10:40:07,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 10:40:07,269 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-07-14 10:40:07,269 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 10:40:07,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 10:40:07,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 10:40:07,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 10:40:07,580 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 10:40:07,581 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 10:40:07,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-5.wvr.bpl [2021-07-14 10:40:07,582 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-5.wvr.bpl' [2021-07-14 10:40:07,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 10:40:07,609 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 10:40:07,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 10:40:07,610 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 10:40:07,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 10:40:07,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:40:07" (1/1) ... [2021-07-14 10:40:07,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:40:07" (1/1) ... [2021-07-14 10:40:07,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 10:40:07,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 10:40:07,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 10:40:07,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 10:40:07,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:40:07" (1/1) ... [2021-07-14 10:40:07,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:40:07" (1/1) ... [2021-07-14 10:40:07,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:40:07" (1/1) ... [2021-07-14 10:40:07,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:40:07" (1/1) ... [2021-07-14 10:40:07,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:40:07" (1/1) ... [2021-07-14 10:40:07,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:40:07" (1/1) ... [2021-07-14 10:40:07,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:40:07" (1/1) ... [2021-07-14 10:40:07,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 10:40:07,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 10:40:07,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 10:40:07,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 10:40:07,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:40:07" (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 10:40:07,700 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 10:40:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 10:40:07,700 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 10:40:07,700 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 10:40:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 10:40:07,701 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 10:40:07,701 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 10:40:07,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 10:40:07,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 10:40:07,702 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 10:40:07,702 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 10:40:07,702 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 10:40:07,703 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 10:40:07,926 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 10:40:07,926 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 10:40:07,928 INFO L202 PluginConnector]: Adding new model misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 10:40:07 BoogieIcfgContainer [2021-07-14 10:40:07,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 10:40:07,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 10:40:07,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 10:40:07,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 10:40:07,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 10:40:07" (1/2) ... [2021-07-14 10:40:07,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3035932b and model type misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 10:40:07, skipping insertion in model container [2021-07-14 10:40:07,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 10:40:07" (2/2) ... [2021-07-14 10:40:07,933 INFO L111 eAbstractionObserver]: Analyzing ICFG misc-5.wvr.bpl [2021-07-14 10:40:07,936 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 10:40:07,936 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 10:40:07,937 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 10:40:07,937 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 10:40:07,971 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 10:40:08,004 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 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 10:40:08,065 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 10:40:08,065 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 10:40:08,065 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 10:40:08,066 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 10:40:08,066 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 10:40:08,066 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 10:40:08,066 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 10:40:08,066 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 10:40:08,252 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 10:40:08,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:40:08,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1212269568, now seen corresponding path program 1 times [2021-07-14 10:40:08,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:40:08,262 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987195218] [2021-07-14 10:40:08,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:40:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:40:08,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 10:40:08,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 10:40:08,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987195218] [2021-07-14 10:40:08,366 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987195218] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 10:40:08,366 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 10:40:08,366 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-14 10:40:08,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139522795] [2021-07-14 10:40:08,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 10:40:08,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 10:40:08,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 10:40:08,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 10:40:08,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:40:08,381 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 10:40:08,382 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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 10:40:08,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:40:08,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 10:40:08,426 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 10:40:08,426 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 10:40:08,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:40:08,429 INFO L82 PathProgramCache]: Analyzing trace with hash -356399286, now seen corresponding path program 2 times [2021-07-14 10:40:08,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:40:08,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382638351] [2021-07-14 10:40:08,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:40:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:40:08,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 10:40:08,509 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 10:40:08,510 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382638351] [2021-07-14 10:40:08,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382638351] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:40:08,510 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002009775] [2021-07-14 10:40:08,510 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:40:08,551 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 10:40:08,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 10:40:08,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-14 10:40:08,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 10:40:08,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 10:40:08,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002009775] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:40:08,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 10:40:08,665 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-07-14 10:40:08,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673059764] [2021-07-14 10:40:08,667 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 10:40:08,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 10:40:08,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 10:40:08,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-07-14 10:40:08,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:40:08,669 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 10:40:08,670 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 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 10:40:08,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 10:40:08,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:40:08,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 10:40:08,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 10:40:08,929 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:40:08,929 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 10:40:08,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:40:08,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1745018124, now seen corresponding path program 3 times [2021-07-14 10:40:08,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:40:08,931 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841773314] [2021-07-14 10:40:08,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:40:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:40:09,009 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 10:40:09,010 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 10:40:09,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841773314] [2021-07-14 10:40:09,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841773314] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:40:09,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914672754] [2021-07-14 10:40:09,010 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:40:09,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-14 10:40:09,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 10:40:09,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-14 10:40:09,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 10:40:09,158 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 10:40:09,158 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914672754] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:40:09,158 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 10:40:09,158 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-07-14 10:40:09,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486767194] [2021-07-14 10:40:09,159 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 10:40:09,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 10:40:09,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 10:40:09,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-07-14 10:40:09,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:40:09,160 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 10:40:09,160 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 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 10:40:09,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 10:40:09,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 10:40:09,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:40:09,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 10:40:09,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 10:40:09,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 10:40:09,457 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:40:09,457 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 10:40:09,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:40:09,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1062080752, now seen corresponding path program 4 times [2021-07-14 10:40:09,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:40:09,458 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337499679] [2021-07-14 10:40:09,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:40:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:40:09,529 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 10:40:09,529 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 10:40:09,529 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337499679] [2021-07-14 10:40:09,529 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337499679] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:40:09,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996214625] [2021-07-14 10:40:09,530 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:40:09,569 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 10:40:09,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 10:40:09,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-14 10:40:09,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 10:40:09,779 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 10:40:09,779 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996214625] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:40:09,784 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 10:40:09,784 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-07-14 10:40:09,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269112108] [2021-07-14 10:40:09,785 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 10:40:09,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 10:40:09,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 10:40:09,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-07-14 10:40:09,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:40:09,786 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 10:40:09,786 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 12 states have internal predecessors, (38), 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 10:40:09,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 10:40:09,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 10:40:09,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 10:40:09,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:40:09,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 10:40:09,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 10:40:09,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 10:40:09,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 10:40:10,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:40:10,177 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 10:40:10,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:40:10,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1606068822, now seen corresponding path program 5 times [2021-07-14 10:40:10,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:40:10,178 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453606776] [2021-07-14 10:40:10,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:40:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:40:10,394 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 1 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 10:40:10,395 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 10:40:10,395 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453606776] [2021-07-14 10:40:10,395 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453606776] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:40:10,395 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507073642] [2021-07-14 10:40:10,395 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:40:10,426 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-07-14 10:40:10,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 10:40:10,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 10:40:10,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 10:40:10,774 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 1 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 10:40:10,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507073642] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:40:10,774 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 10:40:10,774 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-07-14 10:40:10,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776431490] [2021-07-14 10:40:10,774 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 10:40:10,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 10:40:10,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 10:40:10,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-07-14 10:40:10,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:40:10,776 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 10:40:10,777 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 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 10:40:10,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 10:40:10,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 10:40:10,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 10:40:10,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 10:40:10,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:40:11,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 10:40:11,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 10:40:11,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 10:40:11,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 10:40:11,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 10:40:11,320 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-07-14 10:40:11,321 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 10:40:11,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:40:11,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1023367452, now seen corresponding path program 6 times [2021-07-14 10:40:11,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:40:11,322 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017422935] [2021-07-14 10:40:11,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:40:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 10:40:13,216 WARN L205 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 74 DAG size of output: 17 [2021-07-14 10:40:19,433 WARN L205 SmtUtils]: Spent 6.19 s on a formula simplification. DAG size of input: 86 DAG size of output: 15 [2021-07-14 10:40:39,691 WARN L205 SmtUtils]: Spent 20.24 s on a formula simplification. DAG size of input: 124 DAG size of output: 17 [2021-07-14 10:41:20,304 WARN L205 SmtUtils]: Spent 40.59 s on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2021-07-14 10:42:02,158 WARN L205 SmtUtils]: Spent 41.84 s on a formula simplification. DAG size of input: 108 DAG size of output: 12 [2021-07-14 10:44:06,722 WARN L205 SmtUtils]: Spent 2.08 m on a formula simplification. DAG size of input: 114 DAG size of output: 7 [2021-07-14 10:44:17,714 WARN L205 SmtUtils]: Spent 10.98 s on a formula simplification. DAG size of input: 67 DAG size of output: 6 [2021-07-14 10:44:17,753 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 1 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 10:44:17,753 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 10:44:17,753 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017422935] [2021-07-14 10:44:17,754 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017422935] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:44:17,754 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162837275] [2021-07-14 10:44:17,754 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:44:17,797 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-07-14 10:44:17,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 10:44:17,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-14 10:44:17,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 10:44:18,261 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 1 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 10:44:18,261 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162837275] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 10:44:18,261 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 10:44:18,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-07-14 10:44:18,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687747904] [2021-07-14 10:44:18,262 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 10:44:18,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 10:44:18,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 10:44:18,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2021-07-14 10:44:18,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:44:18,263 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 10:44:18,263 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.48) internal successors, (62), 24 states have internal predecessors, (62), 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 10:44:18,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 10:44:18,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 10:44:18,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 10:44:18,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 10:44:18,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 10:44:18,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 10:44:18,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 10:44:18,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 10:44:18,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 10:44:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 10:44:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 10:44:18,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 10:44:19,036 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 10:44:19,037 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 10:44:19,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 10:44:19,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1050104422, now seen corresponding path program 7 times [2021-07-14 10:44:19,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 10:44:19,037 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132942920] [2021-07-14 10:44:19,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 10:44:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown