/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-07 03:10:01,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-07 03:10:01,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-07 03:10:01,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-07 03:10:01,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-07 03:10:01,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-07 03:10:01,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-07 03:10:01,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-07 03:10:01,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-07 03:10:01,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-07 03:10:01,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-07 03:10:01,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-07 03:10:01,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-07 03:10:01,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-07 03:10:01,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-07 03:10:01,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-07 03:10:01,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-07 03:10:01,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-07 03:10:01,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-07 03:10:01,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-07 03:10:01,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-07 03:10:01,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-07 03:10:01,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-07 03:10:01,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-07 03:10:01,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-07 03:10:01,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-07 03:10:01,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-07 03:10:01,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-07 03:10:01,898 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random7777.epf [2021-06-07 03:10:01,925 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-07 03:10:01,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-07 03:10:01,926 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-07 03:10:01,926 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-07 03:10:01,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-07 03:10:01,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-07 03:10:01,928 INFO L138 SettingsManager]: * Use SBE=true [2021-06-07 03:10:01,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-07 03:10:01,928 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-07 03:10:01,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-07 03:10:01,929 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-07 03:10:01,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-07 03:10:01,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-07 03:10:01,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-07 03:10:01,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-07 03:10:01,929 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-07 03:10:01,930 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-07 03:10:01,930 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-07 03:10:01,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-07 03:10:01,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-07 03:10:01,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-07 03:10:01,930 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-07 03:10:01,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-07 03:10:01,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 03:10:01,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-07 03:10:01,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-07 03:10:01,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-07 03:10:01,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-07 03:10:01,931 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-07 03:10:01,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-07 03:10:01,931 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-07 03:10:01,931 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-07 03:10:01,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-07 03:10:01,931 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-07 03:10:01,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-07 03:10:01,931 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-07 03:10:02,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-07 03:10:02,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-07 03:10:02,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-07 03:10:02,195 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-07 03:10:02,196 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-07 03:10:02,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-2.wvr.bpl [2021-06-07 03:10:02,197 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-2.wvr.bpl' [2021-06-07 03:10:02,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-07 03:10:02,236 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-07 03:10:02,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-07 03:10:02,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-07 03:10:02,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-07 03:10:02,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:10:02" (1/1) ... [2021-06-07 03:10:02,252 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:10:02" (1/1) ... [2021-06-07 03:10:02,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-07 03:10:02,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-07 03:10:02,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-07 03:10:02,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-07 03:10:02,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:10:02" (1/1) ... [2021-06-07 03:10:02,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:10:02" (1/1) ... [2021-06-07 03:10:02,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:10:02" (1/1) ... [2021-06-07 03:10:02,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:10:02" (1/1) ... [2021-06-07 03:10:02,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:10:02" (1/1) ... [2021-06-07 03:10:02,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:10:02" (1/1) ... [2021-06-07 03:10:02,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:10:02" (1/1) ... [2021-06-07 03:10:02,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-07 03:10:02,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-07 03:10:02,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-07 03:10:02,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-07 03:10:02,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:10:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 03:10:02,323 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-07 03:10:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-07 03:10:02,324 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-07 03:10:02,324 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-07 03:10:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-07 03:10:02,324 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-07 03:10:02,324 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-07 03:10:02,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-07 03:10:02,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-07 03:10:02,324 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-07 03:10:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-07 03:10:02,325 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-07 03:10:02,325 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-07 03:10:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-07 03:10:02,325 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-07 03:10:02,325 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-06-07 03:10:02,325 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-06-07 03:10:02,325 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-06-07 03:10:02,326 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-07 03:10:02,483 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-07 03:10:02,483 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-07 03:10:02,484 INFO L202 PluginConnector]: Adding new model min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 03:10:02 BoogieIcfgContainer [2021-06-07 03:10:02,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-07 03:10:02,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-07 03:10:02,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-07 03:10:02,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-07 03:10:02,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:10:02" (1/2) ... [2021-06-07 03:10:02,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6781a6f9 and model type min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.06 03:10:02, skipping insertion in model container [2021-06-07 03:10:02,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 03:10:02" (2/2) ... [2021-06-07 03:10:02,503 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-2.wvr.bpl [2021-06-07 03:10:02,507 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-07 03:10:02,507 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-07 03:10:02,507 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-07 03:10:02,508 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-07 03:10:02,575 INFO L149 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-06-07 03:10:02,589 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-07 03:10:02,628 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 03:10:02,628 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 03:10:02,628 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 03:10:02,629 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 03:10:02,629 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 03:10:02,629 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 03:10:02,629 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 03:10:02,629 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-07 03:10:02,714 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:10:02,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:10:02,717 INFO L82 PathProgramCache]: Analyzing trace with hash 541209895, now seen corresponding path program 1 times [2021-06-07 03:10:02,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:10:02,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483438223] [2021-06-07 03:10:02,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:10:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:10:02,911 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-07 03:10:02,912 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:10:02,912 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483438223] [2021-06-07 03:10:02,913 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483438223] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:10:02,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154287734] [2021-06-07 03:10:02,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:10:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:10:03,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-07 03:10:03,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:10:03,167 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-07 03:10:03,169 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154287734] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:10:03,169 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:10:03,169 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-06-07 03:10:03,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133094849] [2021-06-07 03:10:03,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-07 03:10:03,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:10:03,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-07 03:10:03,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-07 03:10:03,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:10:03,186 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:10:03,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:10:03,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:10:03,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:10:03,471 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-07 03:10:03,472 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:10:03,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:10:03,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1790042563, now seen corresponding path program 2 times [2021-06-07 03:10:03,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:10:03,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800078612] [2021-06-07 03:10:03,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:10:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:10:03,513 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-07 03:10:03,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:10:03,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800078612] [2021-06-07 03:10:03,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800078612] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 03:10:03,513 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 03:10:03,514 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-07 03:10:03,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998680981] [2021-06-07 03:10:03,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-07 03:10:03,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:10:03,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-07 03:10:03,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-07 03:10:03,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:10:03,520 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:10:03,520 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:10:03,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:10:03,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:10:03,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:10:03,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:10:03,870 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-07 03:10:03,871 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:10:03,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:10:03,872 INFO L82 PathProgramCache]: Analyzing trace with hash 2081346246, now seen corresponding path program 1 times [2021-06-07 03:10:03,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:10:03,872 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975155529] [2021-06-07 03:10:03,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:10:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:10:04,013 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-07 03:10:04,013 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:10:04,013 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975155529] [2021-06-07 03:10:04,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975155529] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:10:04,014 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684273553] [2021-06-07 03:10:04,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:10:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:10:04,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-07 03:10:04,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:10:04,197 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-07 03:10:04,198 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684273553] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:10:04,198 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:10:04,198 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2021-06-07 03:10:04,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377173232] [2021-06-07 03:10:04,198 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-07 03:10:04,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:10:04,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-07 03:10:04,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-06-07 03:10:04,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:10:04,199 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:10:04,199 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:10:04,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:10:04,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:10:04,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:10:05,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:10:05,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:10:05,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:10:05,625 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:10:05,627 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:10:05,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:10:05,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1378124087, now seen corresponding path program 2 times [2021-06-07 03:10:05,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:10:05,629 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637358109] [2021-06-07 03:10:05,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:10:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:10:05,693 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 31 proven. 31 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-07 03:10:05,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:10:05,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637358109] [2021-06-07 03:10:05,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637358109] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:10:05,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300571531] [2021-06-07 03:10:05,694 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:10:05,772 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 03:10:05,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:10:05,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-07 03:10:05,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:10:05,924 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 51 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-07 03:10:05,925 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300571531] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:10:05,925 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:10:05,925 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2021-06-07 03:10:05,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693145153] [2021-06-07 03:10:05,926 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-07 03:10:05,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:10:05,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-07 03:10:05,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-06-07 03:10:05,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:10:05,928 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:10:05,928 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:10:05,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:10:05,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:10:05,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:10:05,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:10:10,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:10:10,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:10:10,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:10:10,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-07 03:10:10,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:10:10,617 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:10:10,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:10:10,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1173118154, now seen corresponding path program 3 times [2021-06-07 03:10:10,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:10:10,618 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14980269] [2021-06-07 03:10:10,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:10:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:10:10,767 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 14 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:10:10,768 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:10:10,768 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14980269] [2021-06-07 03:10:10,768 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14980269] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:10:10,768 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519528712] [2021-06-07 03:10:10,769 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:10:10,810 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-07 03:10:10,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:10:10,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-07 03:10:10,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:10:10,966 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 14 proven. 17 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-07 03:10:10,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519528712] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:10:10,967 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:10:10,967 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6] total 18 [2021-06-07 03:10:10,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94114072] [2021-06-07 03:10:10,967 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-07 03:10:10,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:10:10,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-07 03:10:10,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-06-07 03:10:10,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:10:10,968 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:10:10,968 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.315789473684211) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:10:10,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:10:10,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:10:10,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:10:10,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-06-07 03:10:10,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:10:20,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:10:20,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:10:20,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:10:20,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-07 03:10:20,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-07 03:10:20,977 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:10:20,977 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:10:20,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:10:20,978 INFO L82 PathProgramCache]: Analyzing trace with hash 620172952, now seen corresponding path program 4 times [2021-06-07 03:10:20,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:10:20,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641723466] [2021-06-07 03:10:20,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:10:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:10:21,025 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-07 03:10:21,026 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:10:21,026 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641723466] [2021-06-07 03:10:21,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641723466] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:10:21,026 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743668983] [2021-06-07 03:10:21,026 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 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 [2021-06-07 03:10:21,068 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-07 03:10:21,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:10:21,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-07 03:10:21,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:10:21,133 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-07 03:10:21,133 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743668983] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:10:21,133 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:10:21,133 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2021-06-07 03:10:21,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842433526] [2021-06-07 03:10:21,134 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-07 03:10:21,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:10:21,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-07 03:10:21,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-06-07 03:10:21,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:10:21,134 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:10:21,134 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 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) [2021-06-07 03:10:21,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:10:21,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:10:21,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:10:21,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-06-07 03:10:21,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-07 03:10:21,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:10:31,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:10:31,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:10:31,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:10:31,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-07 03:10:31,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-07 03:10:31,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:10:31,757 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:10:31,757 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:10:31,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:10:31,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1702084760, now seen corresponding path program 5 times [2021-06-07 03:10:31,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:10:31,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854602483] [2021-06-07 03:10:31,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:10:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:10:31,827 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 15 proven. 25 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-07 03:10:31,827 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:10:31,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854602483] [2021-06-07 03:10:31,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854602483] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:10:31,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879590395] [2021-06-07 03:10:31,827 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:10:31,870 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-07 03:10:31,870 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:10:31,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-07 03:10:31,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:10:31,940 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-07 03:10:31,941 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879590395] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:10:31,941 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:10:31,941 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 6 [2021-06-07 03:10:31,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778273595] [2021-06-07 03:10:31,941 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-07 03:10:31,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:10:31,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-07 03:10:31,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-06-07 03:10:31,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:10:31,942 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:10:31,942 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:10:31,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:10:31,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:10:31,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:10:31,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-06-07 03:10:31,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-07 03:10:31,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:10:31,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:00,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:00,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:00,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:11:00,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-07 03:11:00,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-07 03:11:00,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:11:00,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:11:00,641 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:11:00,641 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:11:00,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:00,641 INFO L82 PathProgramCache]: Analyzing trace with hash -2071639453, now seen corresponding path program 6 times [2021-06-07 03:11:00,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:00,642 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486832274] [2021-06-07 03:11:00,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:00,698 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 33 proven. 48 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-06-07 03:11:00,698 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:00,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486832274] [2021-06-07 03:11:00,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486832274] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:00,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933807466] [2021-06-07 03:11:00,698 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:11:00,745 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-07 03:11:00,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:11:00,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-07 03:11:00,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:00,924 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 35 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-07 03:11:00,924 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933807466] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:00,924 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:11:00,924 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 15 [2021-06-07 03:11:00,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349863176] [2021-06-07 03:11:00,925 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-07 03:11:00,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:00,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-07 03:11:00,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2021-06-07 03:11:00,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:00,925 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:00,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 7.6875) internal successors, (123), 15 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:11:00,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:11:00,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:00,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:11:00,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-06-07 03:11:00,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-07 03:11:00,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:11:00,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:11:00,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:13:26,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:13:26,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:13:26,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:13:26,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-07 03:13:26,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-07 03:13:26,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:13:26,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:13:26,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-06-07 03:13:26,477 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-06-07 03:13:26,478 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-07 03:13:26,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:13:26,478 INFO L82 PathProgramCache]: Analyzing trace with hash 30954645, now seen corresponding path program 7 times [2021-06-07 03:13:26,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:13:26,478 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935475753] [2021-06-07 03:13:26,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:13:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:13:26,822 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-06-07 03:13:26,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:13:26,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935475753] [2021-06-07 03:13:26,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935475753] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:13:26,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871553854] [2021-06-07 03:13:26,822 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:13:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:13:26,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-07 03:13:26,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:13:26,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2021-06-07 03:13:26,917 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:13:26,919 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:13:26,920 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:13:26,920 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:11 [2021-06-07 03:13:26,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-07 03:13:26,949 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:13:26,950 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:13:26,950 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:13:26,950 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-06-07 03:13:27,128 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_5], 1=[A], 3=[v_prenex_7]} [2021-06-07 03:13:27,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-06-07 03:13:27,132 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:13:27,139 INFO L628 ElimStorePlain]: treesize reduction 53, result has 5.4 percent of original size [2021-06-07 03:13:27,139 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-06-07 03:13:27,140 INFO L518 ElimStorePlain]: Eliminatee v_prenex_7 vanished before elimination [2021-06-07 03:13:27,140 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:13:27,140 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 9 variables, input treesize:62, output treesize:3 [2021-06-07 03:13:27,180 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 7 proven. 44 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-06-07 03:13:27,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871553854] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:13:27,180 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:13:27,180 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 14 [2021-06-07 03:13:27,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373497134] [2021-06-07 03:13:27,182 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-07 03:13:27,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:13:27,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-07 03:13:27,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-06-07 03:13:27,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:13:27,183 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:13:27,183 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 14 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:13:27,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 03:13:27,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:13:27,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:13:27,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-06-07 03:13:27,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-07 03:13:27,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:13:27,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-07 03:13:27,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-06-07 03:13:27,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.