/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/parallel-sum-1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-07 03:11:13,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-07 03:11:13,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-07 03:11:13,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-07 03:11:13,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-07 03:11:13,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-07 03:11:13,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-07 03:11:13,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-07 03:11:13,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-07 03:11:13,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-07 03:11:13,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-07 03:11:13,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-07 03:11:13,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-07 03:11:13,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-07 03:11:13,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-07 03:11:13,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-07 03:11:13,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-07 03:11:13,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-07 03:11:13,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-07 03:11:13,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-07 03:11:13,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-07 03:11:13,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-07 03:11:13,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-07 03:11:13,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-07 03:11:13,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-07 03:11:13,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-07 03:11:13,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-07 03:11:13,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-07 03:11:13,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-07 03:11:13,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-07 03:11:13,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-07 03:11:13,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-07 03:11:13,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-07 03:11:13,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-07 03:11:13,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-07 03:11:13,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-07 03:11:13,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-07 03:11:13,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-07 03:11:13,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-07 03:11:13,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-07 03:11:13,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-07 03:11:13,758 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 03:11:13,777 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-07 03:11:13,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-07 03:11:13,777 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-07 03:11:13,778 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-07 03:11:13,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-07 03:11:13,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-07 03:11:13,779 INFO L138 SettingsManager]: * Use SBE=true [2021-06-07 03:11:13,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-07 03:11:13,780 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-07 03:11:13,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-07 03:11:13,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-07 03:11:13,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-07 03:11:13,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-07 03:11:13,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-07 03:11:13,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-07 03:11:13,781 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-07 03:11:13,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-07 03:11:13,781 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-07 03:11:13,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-07 03:11:13,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-07 03:11:13,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-07 03:11:13,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-07 03:11:13,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-07 03:11:13,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 03:11:13,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-07 03:11:13,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-07 03:11:13,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-07 03:11:13,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-07 03:11:13,783 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-07 03:11:13,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-07 03:11:13,783 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-07 03:11:13,783 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-07 03:11:13,783 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-07 03:11:13,784 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-07 03:11:13,784 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-07 03:11:13,784 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-07 03:11:14,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-07 03:11:14,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-07 03:11:14,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-07 03:11:14,077 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-07 03:11:14,078 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-07 03:11:14,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1.wvr.bpl [2021-06-07 03:11:14,078 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1.wvr.bpl' [2021-06-07 03:11:14,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-07 03:11:14,101 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-07 03:11:14,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-07 03:11:14,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-07 03:11:14,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-07 03:11:14,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:11:14" (1/1) ... [2021-06-07 03:11:14,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:11:14" (1/1) ... [2021-06-07 03:11:14,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-07 03:11:14,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-07 03:11:14,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-07 03:11:14,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-07 03:11:14,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:11:14" (1/1) ... [2021-06-07 03:11:14,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:11:14" (1/1) ... [2021-06-07 03:11:14,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:11:14" (1/1) ... [2021-06-07 03:11:14,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:11:14" (1/1) ... [2021-06-07 03:11:14,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:11:14" (1/1) ... [2021-06-07 03:11:14,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:11:14" (1/1) ... [2021-06-07 03:11:14,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:11:14" (1/1) ... [2021-06-07 03:11:14,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-07 03:11:14,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-07 03:11:14,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-07 03:11:14,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-07 03:11:14,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:11:14" (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 03:11:14,210 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-07 03:11:14,210 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-07 03:11:14,210 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-07 03:11:14,210 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-07 03:11:14,210 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-07 03:11:14,210 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-07 03:11:14,210 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-07 03:11:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-07 03:11:14,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-07 03:11:14,211 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-07 03:11:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-07 03:11:14,211 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-07 03:11:14,211 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-07 03:11:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-07 03:11:14,212 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-07 03:11:14,213 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 03:11:14,511 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-07 03:11:14,511 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-07 03:11:14,512 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-06-07 03:11:14,512 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-06-07 03:11:14,512 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2021-06-07 03:11:14,512 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread4EXIT is neither atomic block end nor error location. [2021-06-07 03:11:14,513 INFO L202 PluginConnector]: Adding new model parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 03:11:14 BoogieIcfgContainer [2021-06-07 03:11:14,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-07 03:11:14,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-07 03:11:14,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-07 03:11:14,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-07 03:11:14,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:11:14" (1/2) ... [2021-06-07 03:11:14,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a32b77a and model type parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.06 03:11:14, skipping insertion in model container [2021-06-07 03:11:14,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 03:11:14" (2/2) ... [2021-06-07 03:11:14,520 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-sum-1.wvr.bpl [2021-06-07 03:11:14,540 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-07 03:11:14,541 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-07 03:11:14,541 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-07 03:11:14,542 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-07 03:11:14,626 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-07 03:11:14,656 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 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 03:11:14,710 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 03:11:14,710 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 03:11:14,710 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 03:11:14,710 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 03:11:14,710 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 03:11:14,710 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 03:11:14,710 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 03:11:14,710 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-07 03:11:14,821 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:14,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:14,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1050619393, now seen corresponding path program 1 times [2021-06-07 03:11:14,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:14,839 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514821798] [2021-06-07 03:11:14,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:14,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:14,937 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:14,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514821798] [2021-06-07 03:11:14,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514821798] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 03:11:14,938 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 03:11:14,938 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-07 03:11:14,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420569141] [2021-06-07 03:11:14,942 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-07 03:11:14,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:14,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-07 03:11:14,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-07 03:11:14,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:14,955 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:14,957 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 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 03:11:14,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:14,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:14,974 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-07 03:11:14,974 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:14,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:14,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1010535522, now seen corresponding path program 1 times [2021-06-07 03:11:14,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:14,976 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945922232] [2021-06-07 03:11:14,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:15,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:15,020 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:15,020 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945922232] [2021-06-07 03:11:15,020 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945922232] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:15,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348148598] [2021-06-07 03:11:15,021 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 03:11:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:15,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-07 03:11:15,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:15,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:15,161 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348148598] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 03:11:15,162 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-07 03:11:15,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-06-07 03:11:15,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505742712] [2021-06-07 03:11:15,163 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-07 03:11:15,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:15,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-07 03:11:15,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-07 03:11:15,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:15,165 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:15,165 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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 03:11:15,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:15,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:15,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:15,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:15,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:11:15,441 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:15,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:15,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1386525152, now seen corresponding path program 1 times [2021-06-07 03:11:15,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:15,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274785733] [2021-06-07 03:11:15,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:15,540 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:15,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:15,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274785733] [2021-06-07 03:11:15,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274785733] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:15,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283765341] [2021-06-07 03:11:15,541 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 03:11:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:15,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-07 03:11:15,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:15,677 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:15,677 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283765341] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:15,677 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:11:15,677 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2021-06-07 03:11:15,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98422331] [2021-06-07 03:11:15,678 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-07 03:11:15,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:15,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-07 03:11:15,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-06-07 03:11:15,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:15,679 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:15,679 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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 03:11:15,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:15,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:15,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:15,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:15,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:15,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:15,919 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:11:15,920 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:15,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:15,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1077871489, now seen corresponding path program 2 times [2021-06-07 03:11:15,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:15,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576860310] [2021-06-07 03:11:15,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:16,256 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:16,257 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:16,257 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576860310] [2021-06-07 03:11:16,257 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576860310] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:16,257 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224139943] [2021-06-07 03:11:16,262 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 03:11:16,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 03:11:16,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:11:16,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 35 conjunts are in the unsatisfiable core [2021-06-07 03:11:16,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:16,569 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-06-07 03:11:16,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 40 [2021-06-07 03:11:16,575 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:11:16,584 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:11:16,587 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:11:16,587 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:31 [2021-06-07 03:11:16,691 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:16,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224139943] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:16,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:11:16,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-06-07 03:11:16,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157907998] [2021-06-07 03:11:16,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-07 03:11:16,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:16,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-07 03:11:16,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2021-06-07 03:11:16,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:16,697 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:16,697 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 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 03:11:16,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:16,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:16,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:16,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:17,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:17,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:17,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:17,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:17,480 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:11:17,480 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:17,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:17,481 INFO L82 PathProgramCache]: Analyzing trace with hash 790028004, now seen corresponding path program 3 times [2021-06-07 03:11:17,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:17,481 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933614005] [2021-06-07 03:11:17,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:17,575 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 12 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:17,575 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:17,575 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933614005] [2021-06-07 03:11:17,575 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933614005] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:17,575 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392796325] [2021-06-07 03:11:17,575 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 03:11:17,625 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-06-07 03:11:17,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:11:17,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-07 03:11:17,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:17,755 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-07 03:11:17,756 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392796325] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:17,756 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:11:17,756 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 12 [2021-06-07 03:11:17,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991542500] [2021-06-07 03:11:17,757 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-07 03:11:17,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:17,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-07 03:11:17,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-06-07 03:11:17,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:17,758 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:17,758 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 12 states have internal predecessors, (51), 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 03:11:17,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:17,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:17,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:17,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:17,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:17,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:17,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:17,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:17,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:17,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:11:18,145 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:11:18,145 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:18,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:18,146 INFO L82 PathProgramCache]: Analyzing trace with hash -740189183, now seen corresponding path program 4 times [2021-06-07 03:11:18,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:18,146 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129701897] [2021-06-07 03:11:18,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:18,990 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:18,991 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:18,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129701897] [2021-06-07 03:11:18,991 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129701897] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:18,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164922356] [2021-06-07 03:11:18,991 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 03:11:19,041 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-07 03:11:19,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:11:19,042 WARN L261 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 67 conjunts are in the unsatisfiable core [2021-06-07 03:11:19,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:19,909 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:11:19,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 39 treesize of output 91 [2021-06-07 03:11:20,042 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:11:20,110 INFO L628 ElimStorePlain]: treesize reduction 604, result has 1.6 percent of original size [2021-06-07 03:11:20,111 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-07 03:11:20,112 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:10 [2021-06-07 03:11:20,192 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:20,192 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164922356] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:20,193 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:11:20,193 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 42 [2021-06-07 03:11:20,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052826451] [2021-06-07 03:11:20,193 INFO L462 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-06-07 03:11:20,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:20,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-06-07 03:11:20,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1586, Unknown=0, NotChecked=0, Total=1806 [2021-06-07 03:11:20,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:20,195 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:20,195 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 1.4883720930232558) internal successors, (64), 42 states have internal predecessors, (64), 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 03:11:20,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:20,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:20,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:20,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:20,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:11:20,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:21,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:21,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:21,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:21,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:21,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:11:21,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-07 03:11:22,168 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:11:22,169 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:22,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:22,169 INFO L82 PathProgramCache]: Analyzing trace with hash 783911041, now seen corresponding path program 5 times [2021-06-07 03:11:22,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:22,169 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164917248] [2021-06-07 03:11:22,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:23,140 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:23,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:23,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164917248] [2021-06-07 03:11:23,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164917248] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:23,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130817265] [2021-06-07 03:11:23,141 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 03:11:23,187 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-06-07 03:11:23,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:11:23,189 WARN L261 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 79 conjunts are in the unsatisfiable core [2021-06-07 03:11:23,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:24,223 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:11:24,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 45 treesize of output 109 [2021-06-07 03:11:24,442 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:11:24,572 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 10 [2021-06-07 03:11:24,572 INFO L628 ElimStorePlain]: treesize reduction 1360, result has 0.7 percent of original size [2021-06-07 03:11:24,573 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-07 03:11:24,573 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:10 [2021-06-07 03:11:24,658 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:24,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130817265] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:24,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:11:24,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2021-06-07 03:11:24,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117582488] [2021-06-07 03:11:24,660 INFO L462 AbstractCegarLoop]: Interpolant automaton has 51 states [2021-06-07 03:11:24,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:11:24,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-06-07 03:11:24,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=2246, Unknown=0, NotChecked=0, Total=2550 [2021-06-07 03:11:24,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:24,661 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:11:24,662 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 51 states, 51 states have (on average 1.411764705882353) internal successors, (72), 50 states have internal predecessors, (72), 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 03:11:24,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:24,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:24,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:24,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:24,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:11:24,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-07 03:11:24,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:11:26,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:11:26,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:11:26,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 03:11:26,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:11:26,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:11:26,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-07 03:11:26,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-07 03:11:26,921 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-06-07 03:11:26,923 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:11:26,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:11:26,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1374315391, now seen corresponding path program 6 times [2021-06-07 03:11:26,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:11:26,924 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170849994] [2021-06-07 03:11:26,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:11:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:11:28,056 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 20 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:11:28,056 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:11:28,057 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170849994] [2021-06-07 03:11:28,057 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170849994] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:11:28,057 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612163290] [2021-06-07 03:11:28,057 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 03:11:28,101 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-06-07 03:11:28,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:11:28,102 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 91 conjunts are in the unsatisfiable core [2021-06-07 03:11:28,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:11:29,556 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 116 [2021-06-07 03:11:29,557 INFO L354 Elim1Store]: treesize reduction 20, result has 91.7 percent of original size [2021-06-07 03:11:29,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 10 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 26 case distinctions, treesize of input 55 treesize of output 243 [2021-06-07 03:11:30,425 WARN L205 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 888 DAG size of output: 629 [2021-06-07 03:11:30,890 WARN L205 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 899 DAG size of output: 640 [2021-06-07 03:11:32,644 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 2294 DAG size of output: 1451 [2021-06-07 03:11:34,019 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 2308 DAG size of output: 1464 [2021-06-07 03:11:36,605 WARN L205 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 1379 DAG size of output: 1846 [2021-06-07 03:11:39,149 WARN L205 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 1374 DAG size of output: 1810 [2021-06-07 03:11:39,519 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 492 DAG size of output: 636 [2021-06-07 03:11:40,401 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 585 DAG size of output: 508 [2021-06-07 03:11:40,956 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 555 DAG size of output: 474 [2021-06-07 03:11:41,143 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 965 DAG size of output: 839 [2021-06-07 03:11:41,637 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 637 DAG size of output: 590 [2021-06-07 03:11:42,028 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 1403 DAG size of output: 1243 [2021-06-07 03:11:42,688 WARN L205 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 1663 DAG size of output: 1490 [2021-06-07 03:11:42,829 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 433 DAG size of output: 433 [2021-06-07 03:11:44,040 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 725 DAG size of output: 593 [2021-06-07 03:11:44,829 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 756 DAG size of output: 686 [2021-06-07 03:11:45,194 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 1298 DAG size of output: 1129 [2021-06-07 03:11:45,961 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 824 DAG size of output: 719 [2021-06-07 03:11:46,880 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 857 DAG size of output: 742 [2021-06-07 03:11:47,236 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 563 [2021-06-07 03:11:47,353 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 428 [2021-06-07 03:11:47,492 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 357 [2021-06-07 03:11:48,195 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 1040 DAG size of output: 907 [2021-06-07 03:11:49,083 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 735 DAG size of output: 631 [2021-06-07 03:11:49,542 WARN L205 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 1524 DAG size of output: 1318 [2021-06-07 03:11:50,270 WARN L205 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 1758 DAG size of output: 1548 [2021-06-07 03:11:55,458 WARN L205 SmtUtils]: Spent 5.17 s on a formula simplification. DAG size of input: 5731 DAG size of output: 5059 [2021-06-07 03:12:02,788 WARN L205 SmtUtils]: Spent 7.31 s on a formula simplification. DAG size of input: 6501 DAG size of output: 5756 [2021-06-07 03:12:10,734 WARN L205 SmtUtils]: Spent 7.91 s on a formula simplification. DAG size of input: 6505 DAG size of output: 5760 [2021-06-07 03:12:25,701 WARN L205 SmtUtils]: Spent 14.91 s on a formula simplification. DAG size of input: 6509 DAG size of output: 7612 [2021-06-07 03:12:25,837 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 335 [2021-06-07 03:12:26,335 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 429 DAG size of output: 402 [2021-06-07 03:12:27,207 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 766 DAG size of output: 612 [2021-06-07 03:12:27,764 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 498 DAG size of output: 439 [2021-06-07 03:12:28,367 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 351 [2021-06-07 03:12:29,055 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 456 [2021-06-07 03:12:29,209 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 503 [2021-06-07 03:12:29,367 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 317 [2021-06-07 03:12:30,230 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 643 DAG size of output: 533 [2021-06-07 03:12:30,448 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 716 DAG size of output: 600 [2021-06-07 03:12:30,901 WARN L205 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 1072 DAG size of output: 914 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown