/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/collitem-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 17:32:37,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 17:32:37,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 17:32:37,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-09 17:32:37,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-09 17:32:37,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-09 17:32:37,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-09 17:32:37,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-09 17:32:37,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-09 17:32:37,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-09 17:32:37,653 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-09 17:32:37,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-09 17:32:37,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 17:32:37,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 17:32:37,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 17:32:37,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 17:32:37,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 17:32:37,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 17:32:37,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 17:32:37,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 17:32:37,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 17:32:37,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 17:32:37,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 17:32:37,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 17:32:37,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-09 17:32:37,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-09 17:32:37,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-09 17:32:37,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-09 17:32:37,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-09 17:32:37,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-09 17:32:37,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-09 17:32:37,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-09 17:32:37,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-09 17:32:37,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-09 17:32:37,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-09 17:32:37,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-09 17:32:37,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-09 17:32:37,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-09 17:32:37,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 17:32:37,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 17:32:37,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 17:32:37,706 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-FA-NoLbe.epf [2021-07-09 17:32:37,742 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 17:32:37,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 17:32:37,743 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 17:32:37,743 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 17:32:37,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 17:32:37,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 17:32:37,746 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 17:32:37,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 17:32:37,746 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 17:32:37,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 17:32:37,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 17:32:37,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 17:32:37,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 17:32:37,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 17:32:37,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 17:32:37,748 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 17:32:37,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 17:32:37,748 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 17:32:37,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 17:32:37,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 17:32:37,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 17:32:37,749 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 17:32:37,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 17:32:37,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 17:32:37,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 17:32:37,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 17:32:37,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 17:32:37,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 17:32:37,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 17:32:37,750 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 17:32:37,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 17:32:37,750 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 17:32:38,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 17:32:38,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 17:32:38,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 17:32:38,085 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-09 17:32:38,086 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-09 17:32:38,087 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/collitem-subst.wvr.bpl [2021-07-09 17:32:38,087 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/collitem-subst.wvr.bpl' [2021-07-09 17:32:38,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 17:32:38,131 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-09 17:32:38,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 17:32:38,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 17:32:38,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 17:32:38,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:32:38" (1/1) ... [2021-07-09 17:32:38,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:32:38" (1/1) ... [2021-07-09 17:32:38,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 17:32:38,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 17:32:38,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 17:32:38,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 17:32:38,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:32:38" (1/1) ... [2021-07-09 17:32:38,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:32:38" (1/1) ... [2021-07-09 17:32:38,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:32:38" (1/1) ... [2021-07-09 17:32:38,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:32:38" (1/1) ... [2021-07-09 17:32:38,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:32:38" (1/1) ... [2021-07-09 17:32:38,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:32:38" (1/1) ... [2021-07-09 17:32:38,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:32:38" (1/1) ... [2021-07-09 17:32:38,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 17:32:38,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 17:32:38,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 17:32:38,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 17:32:38,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:32:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 17:32:38,269 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-09 17:32:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-09 17:32:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-09 17:32:38,270 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-09 17:32:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-09 17:32:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-09 17:32:38,270 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-09 17:32:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 17:32:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 17:32:38,270 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-09 17:32:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-09 17:32:38,271 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-09 17:32:38,271 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 17:32:38,560 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 17:32:38,561 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-09 17:32:38,563 INFO L202 PluginConnector]: Adding new model collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 05:32:38 BoogieIcfgContainer [2021-07-09 17:32:38,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 17:32:38,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 17:32:38,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 17:32:38,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 17:32:38,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:32:38" (1/2) ... [2021-07-09 17:32:38,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6458b319 and model type collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 05:32:38, skipping insertion in model container [2021-07-09 17:32:38,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 05:32:38" (2/2) ... [2021-07-09 17:32:38,569 INFO L111 eAbstractionObserver]: Analyzing ICFG collitem-subst.wvr.bpl [2021-07-09 17:32:38,577 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 17:32:38,578 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 17:32:38,578 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 17:32:38,579 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 17:32:38,634 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-09 17:32:38,661 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-09 17:32:38,677 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 17:32:38,677 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 17:32:38,678 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 17:32:38,678 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 17:32:38,678 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 17:32:38,678 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 17:32:38,678 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 17:32:38,678 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 17:32:38,687 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 19 transitions, 62 flow [2021-07-09 17:32:38,709 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 55 states, 54 states have (on average 2.037037037037037) internal successors, (110), 54 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:32:38,712 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 54 states have (on average 2.037037037037037) internal successors, (110), 54 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:32:38,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-07-09 17:32:38,718 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:32:38,719 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:32:38,719 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:32:38,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:32:38,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1365396696, now seen corresponding path program 1 times [2021-07-09 17:32:38,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:32:38,737 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802558596] [2021-07-09 17:32:38,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:32:38,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:32:39,496 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 45 [2021-07-09 17:32:40,287 WARN L205 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 141 [2021-07-09 17:32:40,432 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 141 [2021-07-09 17:32:40,998 WARN L205 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 77 [2021-07-09 17:32:41,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:32:41,091 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:32:41,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802558596] [2021-07-09 17:32:41,092 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802558596] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:32:41,092 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:32:41,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 17:32:41,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110234329] [2021-07-09 17:32:41,096 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 17:32:41,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:32:41,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 17:32:41,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 17:32:41,108 INFO L87 Difference]: Start difference. First operand has 55 states, 54 states have (on average 2.037037037037037) internal successors, (110), 54 states have internal predecessors, (110), 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) Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:32:41,493 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 113 [2021-07-09 17:32:41,884 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 127 [2021-07-09 17:32:41,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:32:41,895 INFO L93 Difference]: Finished difference Result 98 states and 183 transitions. [2021-07-09 17:32:41,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 17:32:41,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) Word has length 14 [2021-07-09 17:32:41,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:32:41,902 INFO L225 Difference]: With dead ends: 98 [2021-07-09 17:32:41,903 INFO L226 Difference]: Without dead ends: 72 [2021-07-09 17:32:41,904 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1529.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-07-09 17:32:41,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-07-09 17:32:41,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 55. [2021-07-09 17:32:41,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.9444444444444444) internal successors, (105), 54 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:32:41,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 105 transitions. [2021-07-09 17:32:41,928 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 105 transitions. Word has length 14 [2021-07-09 17:32:41,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:32:41,929 INFO L482 AbstractCegarLoop]: Abstraction has 55 states and 105 transitions. [2021-07-09 17:32:41,929 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:32:41,929 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 105 transitions. [2021-07-09 17:32:41,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-07-09 17:32:41,930 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:32:41,930 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:32:41,930 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 17:32:41,930 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:32:41,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:32:41,931 INFO L82 PathProgramCache]: Analyzing trace with hash -39432920, now seen corresponding path program 2 times [2021-07-09 17:32:41,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:32:41,931 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917604516] [2021-07-09 17:32:41,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:32:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:32:42,297 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 51 [2021-07-09 17:32:42,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:32:42,323 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:32:42,323 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917604516] [2021-07-09 17:32:42,323 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917604516] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:32:42,323 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:32:42,324 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 17:32:42,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270778362] [2021-07-09 17:32:42,325 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 17:32:42,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:32:42,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 17:32:42,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 17:32:42,328 INFO L87 Difference]: Start difference. First operand 55 states and 105 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:32:42,556 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-07-09 17:32:42,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:32:42,573 INFO L93 Difference]: Finished difference Result 93 states and 168 transitions. [2021-07-09 17:32:42,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 17:32:42,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) Word has length 14 [2021-07-09 17:32:42,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:32:42,574 INFO L225 Difference]: With dead ends: 93 [2021-07-09 17:32:42,574 INFO L226 Difference]: Without dead ends: 65 [2021-07-09 17:32:42,575 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 447.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-07-09 17:32:42,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-07-09 17:32:42,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 48. [2021-07-09 17:32:42,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.9361702127659575) internal successors, (91), 47 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:32:42,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 91 transitions. [2021-07-09 17:32:42,581 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 91 transitions. Word has length 14 [2021-07-09 17:32:42,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:32:42,582 INFO L482 AbstractCegarLoop]: Abstraction has 48 states and 91 transitions. [2021-07-09 17:32:42,582 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:32:42,582 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 91 transitions. [2021-07-09 17:32:42,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-07-09 17:32:42,583 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:32:42,583 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:32:42,583 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 17:32:42,583 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:32:42,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:32:42,584 INFO L82 PathProgramCache]: Analyzing trace with hash -392767192, now seen corresponding path program 3 times [2021-07-09 17:32:42,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:32:42,584 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442762144] [2021-07-09 17:32:42,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:32:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:32:42,818 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 438 DAG size of output: 102 [2021-07-09 17:32:43,038 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 47 [2021-07-09 17:32:43,221 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2021-07-09 17:32:43,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:32:43,279 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:32:43,279 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442762144] [2021-07-09 17:32:43,279 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442762144] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:32:43,279 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:32:43,279 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 17:32:43,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6721447] [2021-07-09 17:32:43,280 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 17:32:43,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:32:43,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 17:32:43,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 17:32:43,281 INFO L87 Difference]: Start difference. First operand 48 states and 91 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:32:43,523 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-07-09 17:32:43,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:32:43,532 INFO L93 Difference]: Finished difference Result 80 states and 141 transitions. [2021-07-09 17:32:43,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 17:32:43,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) Word has length 14 [2021-07-09 17:32:43,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:32:43,541 INFO L225 Difference]: With dead ends: 80 [2021-07-09 17:32:43,542 INFO L226 Difference]: Without dead ends: 54 [2021-07-09 17:32:43,542 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 584.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-07-09 17:32:43,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-07-09 17:32:43,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 37. [2021-07-09 17:32:43,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.7777777777777777) internal successors, (64), 36 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) [2021-07-09 17:32:43,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 64 transitions. [2021-07-09 17:32:43,546 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 64 transitions. Word has length 14 [2021-07-09 17:32:43,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:32:43,546 INFO L482 AbstractCegarLoop]: Abstraction has 37 states and 64 transitions. [2021-07-09 17:32:43,546 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:32:43,546 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 64 transitions. [2021-07-09 17:32:43,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-07-09 17:32:43,547 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:32:43,547 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:32:43,547 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 17:32:43,547 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:32:43,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:32:43,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1324864438, now seen corresponding path program 4 times [2021-07-09 17:32:43,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:32:43,548 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881578226] [2021-07-09 17:32:43,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:32:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:32:46,598 WARN L205 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 532 DAG size of output: 310 [2021-07-09 17:32:46,824 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 277 [2021-07-09 17:32:47,708 WARN L205 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 52 [2021-07-09 17:32:47,983 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 66 [2021-07-09 17:32:48,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:32:48,039 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:32:48,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881578226] [2021-07-09 17:32:48,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881578226] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:32:48,040 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:32:48,040 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 17:32:48,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217962767] [2021-07-09 17:32:48,040 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 17:32:48,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:32:48,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 17:32:48,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 17:32:48,042 INFO L87 Difference]: Start difference. First operand 37 states and 64 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:32:48,159 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-07-09 17:32:48,286 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-07-09 17:32:48,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:32:48,299 INFO L93 Difference]: Finished difference Result 56 states and 96 transitions. [2021-07-09 17:32:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 17:32:48,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) Word has length 14 [2021-07-09 17:32:48,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:32:48,300 INFO L225 Difference]: With dead ends: 56 [2021-07-09 17:32:48,300 INFO L226 Difference]: Without dead ends: 33 [2021-07-09 17:32:48,300 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1371.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-07-09 17:32:48,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-07-09 17:32:48,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-07-09 17:32:48,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.75) internal successors, (56), 32 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:32:48,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 56 transitions. [2021-07-09 17:32:48,303 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 56 transitions. Word has length 14 [2021-07-09 17:32:48,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:32:48,304 INFO L482 AbstractCegarLoop]: Abstraction has 33 states and 56 transitions. [2021-07-09 17:32:48,304 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:32:48,304 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 56 transitions. [2021-07-09 17:32:48,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-07-09 17:32:48,304 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:32:48,304 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:32:48,305 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 17:32:48,305 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:32:48,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:32:48,305 INFO L82 PathProgramCache]: Analyzing trace with hash -2000333238, now seen corresponding path program 5 times [2021-07-09 17:32:48,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:32:48,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515820536] [2021-07-09 17:32:48,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:32:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:32:48,578 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 157 [2021-07-09 17:32:48,784 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 43 [2021-07-09 17:32:48,887 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 123 [2021-07-09 17:32:49,241 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 74 [2021-07-09 17:32:49,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:32:49,274 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:32:49,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515820536] [2021-07-09 17:32:49,275 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515820536] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:32:49,275 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:32:49,275 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 17:32:49,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299087497] [2021-07-09 17:32:49,275 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 17:32:49,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:32:49,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 17:32:49,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 17:32:49,276 INFO L87 Difference]: Start difference. First operand 33 states and 56 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:32:49,409 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-07-09 17:32:49,545 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-07-09 17:32:49,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:32:49,553 INFO L93 Difference]: Finished difference Result 48 states and 80 transitions. [2021-07-09 17:32:49,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 17:32:49,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) Word has length 14 [2021-07-09 17:32:49,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:32:49,554 INFO L225 Difference]: With dead ends: 48 [2021-07-09 17:32:49,554 INFO L226 Difference]: Without dead ends: 27 [2021-07-09 17:32:49,555 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 787.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-07-09 17:32:49,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-07-09 17:32:49,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-07-09 17:32:49,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 26 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:32:49,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 41 transitions. [2021-07-09 17:32:49,558 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 41 transitions. Word has length 14 [2021-07-09 17:32:49,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:32:49,558 INFO L482 AbstractCegarLoop]: Abstraction has 27 states and 41 transitions. [2021-07-09 17:32:49,558 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:32:49,558 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 41 transitions. [2021-07-09 17:32:49,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-07-09 17:32:49,558 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:32:49,559 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:32:49,559 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 17:32:49,559 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:32:49,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:32:49,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1966251176, now seen corresponding path program 6 times [2021-07-09 17:32:49,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:32:49,560 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391360122] [2021-07-09 17:32:49,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:32:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:32:51,149 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 337 DAG size of output: 220 [2021-07-09 17:32:51,480 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 45 [2021-07-09 17:32:51,869 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 60 [2021-07-09 17:32:51,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:32:51,936 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:32:51,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391360122] [2021-07-09 17:32:51,936 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391360122] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:32:51,936 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:32:51,937 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 17:32:51,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58157358] [2021-07-09 17:32:51,937 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 17:32:51,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:32:51,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 17:32:51,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 17:32:51,938 INFO L87 Difference]: Start difference. First operand 27 states and 41 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:32:52,172 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-07-09 17:32:52,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:32:52,173 INFO L93 Difference]: Finished difference Result 25 states and 39 transitions. [2021-07-09 17:32:52,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 17:32:52,174 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) Word has length 14 [2021-07-09 17:32:52,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:32:52,174 INFO L225 Difference]: With dead ends: 25 [2021-07-09 17:32:52,174 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 17:32:52,174 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 854.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-07-09 17:32:52,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 17:32:52,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 17:32:52,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:32:52,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 17:32:52,175 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-07-09 17:32:52,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:32:52,175 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 17:32:52,175 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:32:52,175 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 17:32:52,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 17:32:52,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 17:32:52,178 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 17:32:52,180 INFO L202 PluginConnector]: Adding new model collitem-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 05:32:52 BasicIcfg [2021-07-09 17:32:52,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 17:32:52,181 INFO L168 Benchmark]: Toolchain (without parser) took 14049.62 ms. Allocated memory was 180.4 MB in the beginning and 652.2 MB in the end (delta: 471.9 MB). Free memory was 159.7 MB in the beginning and 486.2 MB in the end (delta: -326.5 MB). Peak memory consumption was 146.4 MB. Max. memory is 8.0 GB. [2021-07-09 17:32:52,181 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 180.4 MB. Free memory is still 160.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 17:32:52,182 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.51 ms. Allocated memory is still 180.4 MB. Free memory was 159.6 MB in the beginning and 158.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 17:32:52,182 INFO L168 Benchmark]: Boogie Preprocessor took 22.81 ms. Allocated memory is still 180.4 MB. Free memory was 158.2 MB in the beginning and 157.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 17:32:52,182 INFO L168 Benchmark]: RCFGBuilder took 371.19 ms. Allocated memory is still 180.4 MB. Free memory was 157.1 MB in the beginning and 139.8 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2021-07-09 17:32:52,183 INFO L168 Benchmark]: TraceAbstraction took 13615.60 ms. Allocated memory was 180.4 MB in the beginning and 652.2 MB in the end (delta: 471.9 MB). Free memory was 139.3 MB in the beginning and 486.2 MB in the end (delta: -346.9 MB). Peak memory consumption was 126.5 MB. Max. memory is 8.0 GB. [2021-07-09 17:32:52,185 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 180.4 MB. Free memory is still 160.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 33.51 ms. Allocated memory is still 180.4 MB. Free memory was 159.6 MB in the beginning and 158.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 22.81 ms. Allocated memory is still 180.4 MB. Free memory was 158.2 MB in the beginning and 157.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 371.19 ms. Allocated memory is still 180.4 MB. Free memory was 157.1 MB in the beginning and 139.8 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 13615.60 ms. Allocated memory was 180.4 MB in the beginning and 652.2 MB in the end (delta: 471.9 MB). Free memory was 139.3 MB in the beginning and 486.2 MB in the end (delta: -346.9 MB). Peak memory consumption was 126.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 68]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 32 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13501.0ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 11.3ms, AutomataDifference: 2093.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 31.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 119 SDtfs, 147 SDslu, 177 SDs, 0 SdLazy, 80 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 112.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5574.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 32.7ms AutomataMinimizationTime, 6 MinimizatonAttempts, 51 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.4ms SsaConstructionTime, 214.7ms SatisfiabilityAnalysisTime, 10968.6ms InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 4739 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...