/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-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 17:18:49,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 17:18:49,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 17:18:49,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-16 17:18:49,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-16 17:18:49,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-16 17:18:49,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-16 17:18:49,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-16 17:18:49,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-16 17:18:49,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-16 17:18:49,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-16 17:18:49,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-16 17:18:49,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 17:18:49,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 17:18:49,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 17:18:49,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 17:18:49,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 17:18:49,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 17:18:49,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 17:18:49,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 17:18:49,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 17:18:49,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 17:18:49,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 17:18:49,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 17:18:49,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-16 17:18:49,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-16 17:18:49,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-16 17:18:49,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-16 17:18:49,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-16 17:18:49,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-16 17:18:49,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-16 17:18:49,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-16 17:18:49,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-16 17:18:49,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-16 17:18:49,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-16 17:18:49,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-16 17:18:49,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-16 17:18:49,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-16 17:18:49,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 17:18:49,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 17:18:49,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 17:18:49,179 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-Delay.epf [2021-06-16 17:18:49,205 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 17:18:49,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 17:18:49,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 17:18:49,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 17:18:49,208 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 17:18:49,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 17:18:49,208 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 17:18:49,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 17:18:49,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 17:18:49,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 17:18:49,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 17:18:49,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 17:18:49,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 17:18:49,209 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 17:18:49,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 17:18:49,209 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 17:18:49,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 17:18:49,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 17:18:49,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 17:18:49,209 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 17:18:49,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 17:18:49,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 17:18:49,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 17:18:49,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 17:18:49,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 17:18:49,210 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 17:18:49,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 17:18:49,210 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 17:18:49,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 17:18:49,210 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-16 17:18:49,210 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 17:18:49,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 17:18:49,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 17:18:49,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 17:18:49,468 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-16 17:18:49,469 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-16 17:18:49,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-6.wvr.bpl [2021-06-16 17:18:49,470 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-6.wvr.bpl' [2021-06-16 17:18:49,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 17:18:49,505 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-16 17:18:49,506 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 17:18:49,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 17:18:49,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 17:18:49,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:18:49" (1/1) ... [2021-06-16 17:18:49,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:18:49" (1/1) ... [2021-06-16 17:18:49,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 17:18:49,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 17:18:49,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 17:18:49,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 17:18:49,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:18:49" (1/1) ... [2021-06-16 17:18:49,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:18:49" (1/1) ... [2021-06-16 17:18:49,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:18:49" (1/1) ... [2021-06-16 17:18:49,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:18:49" (1/1) ... [2021-06-16 17:18:49,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:18:49" (1/1) ... [2021-06-16 17:18:49,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:18:49" (1/1) ... [2021-06-16 17:18:49,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:18:49" (1/1) ... [2021-06-16 17:18:49,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 17:18:49,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 17:18:49,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 17:18:49,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 17:18:49,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:18:49" (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 [2021-06-16 17:18:49,583 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-16 17:18:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-16 17:18:49,583 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-16 17:18:49,583 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-16 17:18:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-16 17:18:49,583 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-16 17:18:49,583 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-16 17:18:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 17:18:49,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 17:18:49,584 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-16 17:18:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-16 17:18:49,584 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-16 17:18:49,584 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-16 17:18:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-16 17:18:49,584 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-16 17:18:49,585 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-06-16 17:18:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-06-16 17:18:49,586 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-06-16 17:18:49,586 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-06-16 17:18:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-06-16 17:18:49,586 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-06-16 17:18:49,587 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 17:18:49,741 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 17:18:49,742 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-16 17:18:49,743 INFO L202 PluginConnector]: Adding new model ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 05:18:49 BoogieIcfgContainer [2021-06-16 17:18:49,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 17:18:49,745 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 17:18:49,745 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 17:18:49,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 17:18:49,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 05:18:49" (1/2) ... [2021-06-16 17:18:49,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@674cb67c and model type ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 05:18:49, skipping insertion in model container [2021-06-16 17:18:49,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 05:18:49" (2/2) ... [2021-06-16 17:18:49,748 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-6.wvr.bpl [2021-06-16 17:18:49,752 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 17:18:49,752 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 17:18:49,752 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 17:18:49,753 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 17:18:49,864 INFO L149 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2021-06-16 17:18:49,879 INFO L255 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-06-16 17:18:49,892 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 17:18:49,892 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 17:18:49,892 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 17:18:49,892 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 17:18:49,892 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 17:18:49,895 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 17:18:49,895 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 17:18:49,895 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 17:19:03,929 INFO L276 IsEmpty]: Start isEmpty. Operand has 74654 states, 59101 states have (on average 2.9595607519331315) internal successors, (174913), 74653 states have internal predecessors, (174913), 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) [2021-06-16 17:19:04,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:19:04,375 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:19:04,376 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:19:04,376 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:19:04,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:19:04,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1359389696, now seen corresponding path program 1 times [2021-06-16 17:19:04,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:19:04,386 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917228434] [2021-06-16 17:19:04,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:19:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:19:04,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:04,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:19:04,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:04,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:04,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:04,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:04,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:04,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:04,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:04,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:04,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:04,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:04,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:04,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:04,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:04,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:04,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:04,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:04,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:04,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:04,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:04,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:04,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:04,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:19:04,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:19:04,755 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:19:04,755 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917228434] [2021-06-16 17:19:04,756 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917228434] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:19:04,756 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:19:04,756 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 17:19:04,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056244351] [2021-06-16 17:19:04,758 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 17:19:04,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:19:04,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 17:19:04,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-16 17:19:04,849 INFO L87 Difference]: Start difference. First operand has 74654 states, 59101 states have (on average 2.9595607519331315) internal successors, (174913), 74653 states have internal predecessors, (174913), 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 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-06-16 17:19:06,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:19:06,350 INFO L93 Difference]: Finished difference Result 205846 states and 473868 transitions. [2021-06-16 17:19:06,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 17:19:06,352 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-06-16 17:19:06,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:19:06,837 INFO L225 Difference]: With dead ends: 205846 [2021-06-16 17:19:06,837 INFO L226 Difference]: Without dead ends: 110690 [2021-06-16 17:19:06,838 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 208.4ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-16 17:19:07,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110690 states. [2021-06-16 17:19:09,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110690 to 54913. [2021-06-16 17:19:09,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54913 states, 54912 states have (on average 2.8719223484848486) internal successors, (157703), 54912 states have internal predecessors, (157703), 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) [2021-06-16 17:19:10,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54913 states to 54913 states and 157703 transitions. [2021-06-16 17:19:10,454 INFO L78 Accepts]: Start accepts. Automaton has 54913 states and 157703 transitions. Word has length 46 [2021-06-16 17:19:10,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:19:10,458 INFO L482 AbstractCegarLoop]: Abstraction has 54913 states and 157703 transitions. [2021-06-16 17:19:10,458 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-06-16 17:19:10,461 INFO L276 IsEmpty]: Start isEmpty. Operand 54913 states and 157703 transitions. [2021-06-16 17:19:10,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:19:10,667 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:19:10,667 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:19:10,667 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 17:19:10,668 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:19:10,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:19:10,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1248297984, now seen corresponding path program 2 times [2021-06-16 17:19:10,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:19:10,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781399002] [2021-06-16 17:19:10,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:19:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:19:10,823 INFO L142 QuantifierPusher]: treesize reduction 11, result has 52.2 percent of original size [2021-06-16 17:19:10,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-16 17:19:10,834 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-06-16 17:19:10,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-16 17:19:10,839 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-06-16 17:19:10,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-16 17:19:10,839 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-06-16 17:19:10,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-16 17:19:10,840 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-06-16 17:19:10,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-06-16 17:19:10,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:10,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-06-16 17:19:10,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:10,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:19:10,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:10,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-06-16 17:19:10,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:11,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:19:11,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:19:11,034 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:19:11,034 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781399002] [2021-06-16 17:19:11,034 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781399002] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:19:11,034 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:19:11,034 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-16 17:19:11,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664535718] [2021-06-16 17:19:11,035 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-16 17:19:11,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:19:11,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-16 17:19:11,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-06-16 17:19:11,036 INFO L87 Difference]: Start difference. First operand 54913 states and 157703 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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) [2021-06-16 17:19:11,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:19:11,670 INFO L93 Difference]: Finished difference Result 85904 states and 250552 transitions. [2021-06-16 17:19:11,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 17:19:11,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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 46 [2021-06-16 17:19:11,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:19:11,868 INFO L225 Difference]: With dead ends: 85904 [2021-06-16 17:19:11,869 INFO L226 Difference]: Without dead ends: 60075 [2021-06-16 17:19:11,869 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.3ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-06-16 17:19:12,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60075 states. [2021-06-16 17:19:13,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60075 to 59260. [2021-06-16 17:19:13,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59260 states, 59259 states have (on average 2.8537606102026696) internal successors, (169111), 59259 states have internal predecessors, (169111), 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) [2021-06-16 17:19:13,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59260 states to 59260 states and 169111 transitions. [2021-06-16 17:19:13,542 INFO L78 Accepts]: Start accepts. Automaton has 59260 states and 169111 transitions. Word has length 46 [2021-06-16 17:19:13,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:19:13,543 INFO L482 AbstractCegarLoop]: Abstraction has 59260 states and 169111 transitions. [2021-06-16 17:19:13,543 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 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) [2021-06-16 17:19:13,543 INFO L276 IsEmpty]: Start isEmpty. Operand 59260 states and 169111 transitions. [2021-06-16 17:19:13,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:19:13,645 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:19:13,645 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:19:13,645 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 17:19:13,645 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:19:13,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:19:13,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1986509026, now seen corresponding path program 3 times [2021-06-16 17:19:13,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:19:13,646 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584777141] [2021-06-16 17:19:13,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:19:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:19:13,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:13,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:19:13,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:13,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:13,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:13,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:13,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:13,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:13,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:13,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:13,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:13,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:13,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:13,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:13,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:13,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:13,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:13,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:13,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:13,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:19:13,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:19:13,694 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:19:13,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584777141] [2021-06-16 17:19:13,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584777141] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:19:13,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:19:13,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 17:19:13,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151352378] [2021-06-16 17:19:13,695 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 17:19:13,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:19:13,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 17:19:13,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-16 17:19:13,696 INFO L87 Difference]: Start difference. First operand 59260 states and 169111 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-06-16 17:19:14,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:19:14,552 INFO L93 Difference]: Finished difference Result 116830 states and 333830 transitions. [2021-06-16 17:19:14,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 17:19:14,565 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2021-06-16 17:19:14,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:19:14,943 INFO L225 Difference]: With dead ends: 116830 [2021-06-16 17:19:14,944 INFO L226 Difference]: Without dead ends: 116750 [2021-06-16 17:19:14,944 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 19.1ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-06-16 17:19:15,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116750 states. [2021-06-16 17:19:16,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116750 to 62162. [2021-06-16 17:19:16,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62162 states, 62161 states have (on average 2.834076028377922) internal successors, (176169), 62161 states have internal predecessors, (176169), 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) [2021-06-16 17:19:17,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62162 states to 62162 states and 176169 transitions. [2021-06-16 17:19:17,215 INFO L78 Accepts]: Start accepts. Automaton has 62162 states and 176169 transitions. Word has length 46 [2021-06-16 17:19:17,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:19:17,215 INFO L482 AbstractCegarLoop]: Abstraction has 62162 states and 176169 transitions. [2021-06-16 17:19:17,216 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-06-16 17:19:17,216 INFO L276 IsEmpty]: Start isEmpty. Operand 62162 states and 176169 transitions. [2021-06-16 17:19:17,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:19:17,346 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:19:17,346 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:19:17,346 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-16 17:19:17,346 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:19:17,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:19:17,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1850739776, now seen corresponding path program 4 times [2021-06-16 17:19:17,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:19:17,347 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562590675] [2021-06-16 17:19:17,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:19:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:19:17,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:17,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:19:17,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:17,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:17,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:17,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:17,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:17,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:17,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:17,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:17,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:17,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:17,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:17,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:17,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:17,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:17,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:17,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:17,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:17,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:17,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:17,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:17,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:17,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:19:17,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:19:17,398 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:19:17,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562590675] [2021-06-16 17:19:17,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562590675] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:19:17,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:19:17,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 17:19:17,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722327079] [2021-06-16 17:19:17,399 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 17:19:17,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:19:17,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 17:19:17,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-16 17:19:17,399 INFO L87 Difference]: Start difference. First operand 62162 states and 176169 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-06-16 17:19:18,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:19:18,213 INFO L93 Difference]: Finished difference Result 128819 states and 361673 transitions. [2021-06-16 17:19:18,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 17:19:18,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-06-16 17:19:18,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:19:18,774 INFO L225 Difference]: With dead ends: 128819 [2021-06-16 17:19:18,780 INFO L226 Difference]: Without dead ends: 128195 [2021-06-16 17:19:18,781 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 32.9ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-16 17:19:19,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128195 states. [2021-06-16 17:19:20,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128195 to 68151. [2021-06-16 17:19:20,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68151 states, 68150 states have (on average 2.7845194424064563) internal successors, (189765), 68150 states have internal predecessors, (189765), 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) [2021-06-16 17:19:21,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68151 states to 68151 states and 189765 transitions. [2021-06-16 17:19:21,030 INFO L78 Accepts]: Start accepts. Automaton has 68151 states and 189765 transitions. Word has length 46 [2021-06-16 17:19:21,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:19:21,031 INFO L482 AbstractCegarLoop]: Abstraction has 68151 states and 189765 transitions. [2021-06-16 17:19:21,031 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-06-16 17:19:21,031 INFO L276 IsEmpty]: Start isEmpty. Operand 68151 states and 189765 transitions. [2021-06-16 17:19:21,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:19:21,146 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:19:21,146 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:19:21,146 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-16 17:19:21,146 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:19:21,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:19:21,147 INFO L82 PathProgramCache]: Analyzing trace with hash 299979394, now seen corresponding path program 5 times [2021-06-16 17:19:21,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:19:21,147 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181263218] [2021-06-16 17:19:21,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:19:21,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:19:21,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:21,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:19:21,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:21,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:21,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:21,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:21,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:21,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:21,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:21,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:21,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:21,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:21,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:21,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:21,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:21,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:21,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:21,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:21,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:21,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:21,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:21,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:21,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:21,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:19:21,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:19:21,212 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:19:21,212 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181263218] [2021-06-16 17:19:21,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181263218] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:19:21,213 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:19:21,213 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-16 17:19:21,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542509684] [2021-06-16 17:19:21,213 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-16 17:19:21,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:19:21,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-16 17:19:21,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-16 17:19:21,214 INFO L87 Difference]: Start difference. First operand 68151 states and 189765 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2021-06-16 17:19:22,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:19:22,204 INFO L93 Difference]: Finished difference Result 131647 states and 373656 transitions. [2021-06-16 17:19:22,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 17:19:22,205 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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 46 [2021-06-16 17:19:22,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:19:22,756 INFO L225 Difference]: With dead ends: 131647 [2021-06-16 17:19:22,756 INFO L226 Difference]: Without dead ends: 131543 [2021-06-16 17:19:22,756 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 36.4ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-06-16 17:19:23,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131543 states. [2021-06-16 17:19:24,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131543 to 67193. [2021-06-16 17:19:24,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67193 states, 67192 states have (on average 2.7861799023693297) internal successors, (187209), 67192 states have internal predecessors, (187209), 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) [2021-06-16 17:19:24,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67193 states to 67193 states and 187209 transitions. [2021-06-16 17:19:24,948 INFO L78 Accepts]: Start accepts. Automaton has 67193 states and 187209 transitions. Word has length 46 [2021-06-16 17:19:24,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:19:24,949 INFO L482 AbstractCegarLoop]: Abstraction has 67193 states and 187209 transitions. [2021-06-16 17:19:24,949 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2021-06-16 17:19:24,949 INFO L276 IsEmpty]: Start isEmpty. Operand 67193 states and 187209 transitions. [2021-06-16 17:19:25,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:19:25,077 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:19:25,077 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:19:25,078 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-16 17:19:25,078 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:19:25,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:19:25,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1571368480, now seen corresponding path program 6 times [2021-06-16 17:19:25,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:19:25,078 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569425272] [2021-06-16 17:19:25,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:19:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:19:25,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:25,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:19:25,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:25,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:25,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:25,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:25,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:25,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:25,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:25,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:25,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:25,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:25,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:25,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:25,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:25,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:25,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:25,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:25,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:25,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:25,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:25,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:25,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:25,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:19:25,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:19:25,176 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:19:25,176 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569425272] [2021-06-16 17:19:25,176 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569425272] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:19:25,177 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:19:25,177 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-16 17:19:25,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782137679] [2021-06-16 17:19:25,177 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-16 17:19:25,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:19:25,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-16 17:19:25,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-16 17:19:25,178 INFO L87 Difference]: Start difference. First operand 67193 states and 187209 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:19:26,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:19:26,312 INFO L93 Difference]: Finished difference Result 140108 states and 396392 transitions. [2021-06-16 17:19:26,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 17:19:26,315 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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 46 [2021-06-16 17:19:26,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:19:26,649 INFO L225 Difference]: With dead ends: 140108 [2021-06-16 17:19:26,650 INFO L226 Difference]: Without dead ends: 139760 [2021-06-16 17:19:26,650 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 75.7ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-06-16 17:19:27,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139760 states. [2021-06-16 17:19:28,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139760 to 73374. [2021-06-16 17:19:28,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73374 states, 73373 states have (on average 2.7725457593392666) internal successors, (203430), 73373 states have internal predecessors, (203430), 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) [2021-06-16 17:19:29,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73374 states to 73374 states and 203430 transitions. [2021-06-16 17:19:29,280 INFO L78 Accepts]: Start accepts. Automaton has 73374 states and 203430 transitions. Word has length 46 [2021-06-16 17:19:29,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:19:29,281 INFO L482 AbstractCegarLoop]: Abstraction has 73374 states and 203430 transitions. [2021-06-16 17:19:29,281 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:19:29,281 INFO L276 IsEmpty]: Start isEmpty. Operand 73374 states and 203430 transitions. [2021-06-16 17:19:29,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:19:29,409 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:19:29,409 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:19:29,410 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-16 17:19:29,410 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:19:29,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:19:29,410 INFO L82 PathProgramCache]: Analyzing trace with hash -326469470, now seen corresponding path program 7 times [2021-06-16 17:19:29,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:19:29,410 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882433307] [2021-06-16 17:19:29,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:19:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:19:29,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:29,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:19:29,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:29,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:29,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:29,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:29,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:29,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:29,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:29,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:29,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:29,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:29,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:29,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:29,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:29,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:29,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:29,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:29,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:29,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:29,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:29,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:29,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:29,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:19:29,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:19:29,456 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:19:29,456 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882433307] [2021-06-16 17:19:29,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882433307] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:19:29,457 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:19:29,457 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-16 17:19:29,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982911060] [2021-06-16 17:19:29,457 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-16 17:19:29,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:19:29,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-16 17:19:29,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-16 17:19:29,458 INFO L87 Difference]: Start difference. First operand 73374 states and 203430 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2021-06-16 17:19:30,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:19:30,424 INFO L93 Difference]: Finished difference Result 142350 states and 396908 transitions. [2021-06-16 17:19:30,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 17:19:30,425 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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 46 [2021-06-16 17:19:30,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:19:30,748 INFO L225 Difference]: With dead ends: 142350 [2021-06-16 17:19:30,748 INFO L226 Difference]: Without dead ends: 141302 [2021-06-16 17:19:30,749 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 33.9ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-06-16 17:19:31,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141302 states. [2021-06-16 17:19:33,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141302 to 72192. [2021-06-16 17:19:33,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72192 states, 72191 states have (on average 2.77188292169384) internal successors, (200105), 72191 states have internal predecessors, (200105), 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) [2021-06-16 17:19:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72192 states to 72192 states and 200105 transitions. [2021-06-16 17:19:33,494 INFO L78 Accepts]: Start accepts. Automaton has 72192 states and 200105 transitions. Word has length 46 [2021-06-16 17:19:33,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:19:33,494 INFO L482 AbstractCegarLoop]: Abstraction has 72192 states and 200105 transitions. [2021-06-16 17:19:33,494 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2021-06-16 17:19:33,494 INFO L276 IsEmpty]: Start isEmpty. Operand 72192 states and 200105 transitions. [2021-06-16 17:19:33,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:19:33,615 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:19:33,615 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:19:33,615 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-16 17:19:33,616 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:19:33,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:19:33,616 INFO L82 PathProgramCache]: Analyzing trace with hash 625128448, now seen corresponding path program 8 times [2021-06-16 17:19:33,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:19:33,616 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405776207] [2021-06-16 17:19:33,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:19:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:19:33,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:33,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:19:33,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:33,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:33,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:33,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:33,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:33,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:33,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:33,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:33,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:33,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:33,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:33,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:33,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:33,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:33,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:33,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:33,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:33,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:33,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:33,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:33,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:33,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:19:33,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:19:33,669 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:19:33,669 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405776207] [2021-06-16 17:19:33,669 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405776207] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:19:33,670 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:19:33,670 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-16 17:19:33,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133149973] [2021-06-16 17:19:33,670 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-16 17:19:33,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:19:33,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-16 17:19:33,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-16 17:19:33,670 INFO L87 Difference]: Start difference. First operand 72192 states and 200105 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:19:34,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:19:34,755 INFO L93 Difference]: Finished difference Result 148805 states and 410744 transitions. [2021-06-16 17:19:34,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 17:19:34,756 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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 46 [2021-06-16 17:19:34,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:19:35,335 INFO L225 Difference]: With dead ends: 148805 [2021-06-16 17:19:35,335 INFO L226 Difference]: Without dead ends: 146665 [2021-06-16 17:19:35,336 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 67.3ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-06-16 17:19:35,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146665 states. [2021-06-16 17:19:37,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146665 to 75307. [2021-06-16 17:19:37,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75307 states, 75306 states have (on average 2.7544949937587972) internal successors, (207430), 75306 states have internal predecessors, (207430), 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) [2021-06-16 17:19:37,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75307 states to 75307 states and 207430 transitions. [2021-06-16 17:19:37,782 INFO L78 Accepts]: Start accepts. Automaton has 75307 states and 207430 transitions. Word has length 46 [2021-06-16 17:19:37,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:19:37,782 INFO L482 AbstractCegarLoop]: Abstraction has 75307 states and 207430 transitions. [2021-06-16 17:19:37,782 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:19:37,782 INFO L276 IsEmpty]: Start isEmpty. Operand 75307 states and 207430 transitions. [2021-06-16 17:19:37,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:19:37,906 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:19:37,906 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:19:37,906 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-16 17:19:37,907 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:19:37,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:19:37,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1672023034, now seen corresponding path program 9 times [2021-06-16 17:19:37,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:19:37,907 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480643209] [2021-06-16 17:19:37,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:19:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:19:37,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:37,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:19:37,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:37,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:37,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:37,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:37,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:37,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:37,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:37,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:37,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:37,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:37,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:37,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:37,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:37,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:37,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:37,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:37,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:37,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:19:37,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:19:37,952 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:19:37,952 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480643209] [2021-06-16 17:19:37,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480643209] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:19:37,952 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:19:37,952 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 17:19:37,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575701901] [2021-06-16 17:19:37,953 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 17:19:37,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:19:37,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 17:19:37,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-16 17:19:37,953 INFO L87 Difference]: Start difference. First operand 75307 states and 207430 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-06-16 17:19:38,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:19:38,980 INFO L93 Difference]: Finished difference Result 170013 states and 493072 transitions. [2021-06-16 17:19:38,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 17:19:38,990 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-06-16 17:19:38,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:19:39,616 INFO L225 Difference]: With dead ends: 170013 [2021-06-16 17:19:39,616 INFO L226 Difference]: Without dead ends: 169261 [2021-06-16 17:19:39,616 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 35.0ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-16 17:19:40,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169261 states. [2021-06-16 17:19:42,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169261 to 117037. [2021-06-16 17:19:42,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117037 states, 117036 states have (on average 2.768618202946102) internal successors, (324028), 117036 states have internal predecessors, (324028), 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) [2021-06-16 17:19:42,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117037 states to 117037 states and 324028 transitions. [2021-06-16 17:19:42,846 INFO L78 Accepts]: Start accepts. Automaton has 117037 states and 324028 transitions. Word has length 46 [2021-06-16 17:19:42,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:19:42,846 INFO L482 AbstractCegarLoop]: Abstraction has 117037 states and 324028 transitions. [2021-06-16 17:19:42,846 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-06-16 17:19:42,846 INFO L276 IsEmpty]: Start isEmpty. Operand 117037 states and 324028 transitions. [2021-06-16 17:19:43,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:19:43,040 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:19:43,041 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:19:43,041 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-16 17:19:43,041 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:19:43,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:19:43,041 INFO L82 PathProgramCache]: Analyzing trace with hash -718241986, now seen corresponding path program 10 times [2021-06-16 17:19:43,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:19:43,041 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222308827] [2021-06-16 17:19:43,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:19:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:19:43,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:43,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:19:43,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:43,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:43,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:43,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:43,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:43,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:43,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:43,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:43,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:43,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:43,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:43,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:43,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:43,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:43,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:43,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:43,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:43,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:43,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:43,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:43,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:43,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:19:43,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:19:43,098 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:19:43,098 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222308827] [2021-06-16 17:19:43,098 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222308827] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:19:43,098 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:19:43,098 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-16 17:19:43,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739640626] [2021-06-16 17:19:43,100 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-16 17:19:43,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:19:43,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-16 17:19:43,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-16 17:19:43,100 INFO L87 Difference]: Start difference. First operand 117037 states and 324028 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:19:44,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:19:44,622 INFO L93 Difference]: Finished difference Result 207437 states and 630277 transitions. [2021-06-16 17:19:44,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 17:19:44,622 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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 46 [2021-06-16 17:19:44,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:19:45,469 INFO L225 Difference]: With dead ends: 207437 [2021-06-16 17:19:45,470 INFO L226 Difference]: Without dead ends: 204625 [2021-06-16 17:19:45,470 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 57.5ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-06-16 17:19:45,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204625 states. [2021-06-16 17:19:48,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204625 to 126634. [2021-06-16 17:19:48,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126634 states, 126633 states have (on average 2.89006025285668) internal successors, (365977), 126633 states have internal predecessors, (365977), 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) [2021-06-16 17:19:49,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126634 states to 126634 states and 365977 transitions. [2021-06-16 17:19:49,176 INFO L78 Accepts]: Start accepts. Automaton has 126634 states and 365977 transitions. Word has length 46 [2021-06-16 17:19:49,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:19:49,176 INFO L482 AbstractCegarLoop]: Abstraction has 126634 states and 365977 transitions. [2021-06-16 17:19:49,176 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:19:49,177 INFO L276 IsEmpty]: Start isEmpty. Operand 126634 states and 365977 transitions. [2021-06-16 17:19:49,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:19:49,811 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:19:49,811 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:19:49,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-16 17:19:49,812 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:19:49,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:19:49,812 INFO L82 PathProgramCache]: Analyzing trace with hash 427793196, now seen corresponding path program 11 times [2021-06-16 17:19:49,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:19:49,812 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670400116] [2021-06-16 17:19:49,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:19:49,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:19:49,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:49,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:19:49,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:49,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:49,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:49,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:49,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:49,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:49,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:49,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:49,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:49,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:49,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:49,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:49,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:49,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:49,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:49,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:19:49,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:19:49,846 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:19:49,846 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670400116] [2021-06-16 17:19:49,846 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670400116] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:19:49,846 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:19:49,846 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 17:19:49,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399634771] [2021-06-16 17:19:49,846 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 17:19:49,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:19:49,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 17:19:49,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-16 17:19:49,847 INFO L87 Difference]: Start difference. First operand 126634 states and 365977 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-06-16 17:19:50,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:19:50,897 INFO L93 Difference]: Finished difference Result 194729 states and 576740 transitions. [2021-06-16 17:19:50,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 17:19:50,898 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2021-06-16 17:19:50,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:19:51,624 INFO L225 Difference]: With dead ends: 194729 [2021-06-16 17:19:51,624 INFO L226 Difference]: Without dead ends: 194477 [2021-06-16 17:19:51,625 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 16.3ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-06-16 17:19:52,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194477 states. [2021-06-16 17:19:55,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194477 to 133648. [2021-06-16 17:19:55,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133648 states, 133647 states have (on average 2.8617627032406263) internal successors, (382466), 133647 states have internal predecessors, (382466), 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) [2021-06-16 17:19:56,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133648 states to 133648 states and 382466 transitions. [2021-06-16 17:19:56,149 INFO L78 Accepts]: Start accepts. Automaton has 133648 states and 382466 transitions. Word has length 46 [2021-06-16 17:19:56,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:19:56,149 INFO L482 AbstractCegarLoop]: Abstraction has 133648 states and 382466 transitions. [2021-06-16 17:19:56,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-06-16 17:19:56,149 INFO L276 IsEmpty]: Start isEmpty. Operand 133648 states and 382466 transitions. [2021-06-16 17:19:56,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:19:56,464 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:19:56,464 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:19:56,464 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-16 17:19:56,464 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:19:56,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:19:56,465 INFO L82 PathProgramCache]: Analyzing trace with hash -746629844, now seen corresponding path program 12 times [2021-06-16 17:19:56,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:19:56,465 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637352395] [2021-06-16 17:19:56,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:19:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:19:56,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:56,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:19:56,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:56,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:56,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:56,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:56,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:56,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:56,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:56,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:19:56,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:56,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:56,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:56,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:56,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:56,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:56,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:56,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:19:56,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:19:56,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:19:56,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:19:56,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:19:56,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637352395] [2021-06-16 17:19:56,515 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637352395] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:19:56,515 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:19:56,515 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 17:19:56,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829903120] [2021-06-16 17:19:56,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 17:19:56,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:19:56,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 17:19:56,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-16 17:19:56,516 INFO L87 Difference]: Start difference. First operand 133648 states and 382466 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-06-16 17:19:57,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:19:57,520 INFO L93 Difference]: Finished difference Result 179558 states and 510231 transitions. [2021-06-16 17:19:57,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 17:19:57,520 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-06-16 17:19:57,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:19:58,167 INFO L225 Difference]: With dead ends: 179558 [2021-06-16 17:19:58,167 INFO L226 Difference]: Without dead ends: 177874 [2021-06-16 17:19:58,167 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 32.2ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-16 17:19:58,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177874 states. [2021-06-16 17:20:00,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177874 to 127335. [2021-06-16 17:20:00,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127335 states, 127334 states have (on average 2.764116418238648) internal successors, (351966), 127334 states have internal predecessors, (351966), 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) [2021-06-16 17:20:01,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127335 states to 127335 states and 351966 transitions. [2021-06-16 17:20:01,422 INFO L78 Accepts]: Start accepts. Automaton has 127335 states and 351966 transitions. Word has length 46 [2021-06-16 17:20:01,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:20:01,422 INFO L482 AbstractCegarLoop]: Abstraction has 127335 states and 351966 transitions. [2021-06-16 17:20:01,422 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-06-16 17:20:01,422 INFO L276 IsEmpty]: Start isEmpty. Operand 127335 states and 351966 transitions. [2021-06-16 17:20:01,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:20:01,636 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:20:01,636 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:20:01,637 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-16 17:20:01,637 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:20:01,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:20:01,637 INFO L82 PathProgramCache]: Analyzing trace with hash -812934362, now seen corresponding path program 13 times [2021-06-16 17:20:01,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:20:01,637 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189911315] [2021-06-16 17:20:01,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:20:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:20:01,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:01,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:20:01,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:01,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:01,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:01,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:20:01,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:01,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:01,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:01,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:20:01,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:01,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:01,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:01,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:01,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:01,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:01,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:01,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:01,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:01,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:01,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:01,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:01,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:01,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:20:01,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:20:01,684 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:20:01,684 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189911315] [2021-06-16 17:20:01,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189911315] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:20:01,684 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:20:01,684 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-16 17:20:01,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524896649] [2021-06-16 17:20:01,684 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-16 17:20:01,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:20:01,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-16 17:20:01,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-16 17:20:01,685 INFO L87 Difference]: Start difference. First operand 127335 states and 351966 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:20:03,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:20:03,126 INFO L93 Difference]: Finished difference Result 187997 states and 523195 transitions. [2021-06-16 17:20:03,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 17:20:03,127 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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 46 [2021-06-16 17:20:03,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:20:03,581 INFO L225 Difference]: With dead ends: 187997 [2021-06-16 17:20:03,581 INFO L226 Difference]: Without dead ends: 184178 [2021-06-16 17:20:03,581 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 63.2ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-06-16 17:20:04,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184178 states. [2021-06-16 17:20:06,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184178 to 130331. [2021-06-16 17:20:06,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130331 states, 130330 states have (on average 2.7353717486380726) internal successors, (356501), 130330 states have internal predecessors, (356501), 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) [2021-06-16 17:20:07,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130331 states to 130331 states and 356501 transitions. [2021-06-16 17:20:07,336 INFO L78 Accepts]: Start accepts. Automaton has 130331 states and 356501 transitions. Word has length 46 [2021-06-16 17:20:07,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:20:07,336 INFO L482 AbstractCegarLoop]: Abstraction has 130331 states and 356501 transitions. [2021-06-16 17:20:07,336 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:20:07,336 INFO L276 IsEmpty]: Start isEmpty. Operand 130331 states and 356501 transitions. [2021-06-16 17:20:07,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:20:07,582 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:20:07,582 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:20:07,582 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-16 17:20:07,582 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:20:07,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:20:07,582 INFO L82 PathProgramCache]: Analyzing trace with hash -492113736, now seen corresponding path program 14 times [2021-06-16 17:20:07,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:20:07,582 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999681298] [2021-06-16 17:20:07,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:20:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:20:07,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:07,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:20:07,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:07,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:07,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:07,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:20:07,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:07,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:07,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:07,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:07,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:07,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:07,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:07,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:07,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:07,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:07,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:07,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:07,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:07,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:07,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:07,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:07,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:07,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:20:07,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:20:07,631 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:20:07,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999681298] [2021-06-16 17:20:07,631 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999681298] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:20:07,631 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:20:07,631 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-16 17:20:07,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054802655] [2021-06-16 17:20:07,631 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-16 17:20:07,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:20:07,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-16 17:20:07,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-06-16 17:20:07,632 INFO L87 Difference]: Start difference. First operand 130331 states and 356501 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:20:08,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:20:08,838 INFO L93 Difference]: Finished difference Result 185610 states and 515200 transitions. [2021-06-16 17:20:08,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 17:20:08,839 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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 46 [2021-06-16 17:20:08,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:20:09,490 INFO L225 Difference]: With dead ends: 185610 [2021-06-16 17:20:09,490 INFO L226 Difference]: Without dead ends: 185346 [2021-06-16 17:20:09,490 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 50.6ms TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2021-06-16 17:20:09,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185346 states. [2021-06-16 17:20:12,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185346 to 130075. [2021-06-16 17:20:12,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130075 states, 130074 states have (on average 2.7342973999415716) internal successors, (355661), 130074 states have internal predecessors, (355661), 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) [2021-06-16 17:20:13,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130075 states to 130075 states and 355661 transitions. [2021-06-16 17:20:13,147 INFO L78 Accepts]: Start accepts. Automaton has 130075 states and 355661 transitions. Word has length 46 [2021-06-16 17:20:13,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:20:13,147 INFO L482 AbstractCegarLoop]: Abstraction has 130075 states and 355661 transitions. [2021-06-16 17:20:13,147 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:20:13,147 INFO L276 IsEmpty]: Start isEmpty. Operand 130075 states and 355661 transitions. [2021-06-16 17:20:13,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:20:13,383 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:20:13,383 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:20:13,383 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-16 17:20:13,383 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:20:13,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:20:13,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1218697032, now seen corresponding path program 15 times [2021-06-16 17:20:13,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:20:13,384 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358627978] [2021-06-16 17:20:13,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:20:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:20:13,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:13,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:20:13,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:13,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:13,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:13,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:20:13,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:13,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:13,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:13,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:13,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:13,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:13,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:13,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:13,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:13,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:13,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:13,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:13,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:13,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:13,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:13,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:13,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:13,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:20:13,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:20:13,480 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:20:13,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358627978] [2021-06-16 17:20:13,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358627978] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:20:13,481 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:20:13,481 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-16 17:20:13,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217989202] [2021-06-16 17:20:13,481 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-16 17:20:13,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:20:13,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-16 17:20:13,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-16 17:20:13,481 INFO L87 Difference]: Start difference. First operand 130075 states and 355661 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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) [2021-06-16 17:20:14,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:20:14,935 INFO L93 Difference]: Finished difference Result 181662 states and 504190 transitions. [2021-06-16 17:20:14,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 17:20:14,935 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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 46 [2021-06-16 17:20:14,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:20:15,497 INFO L225 Difference]: With dead ends: 181662 [2021-06-16 17:20:15,497 INFO L226 Difference]: Without dead ends: 180466 [2021-06-16 17:20:15,499 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 73.5ms TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2021-06-16 17:20:15,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180466 states. [2021-06-16 17:20:18,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180466 to 129499. [2021-06-16 17:20:18,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129499 states, 129498 states have (on average 2.724034348020819) internal successors, (352757), 129498 states have internal predecessors, (352757), 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) [2021-06-16 17:20:18,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129499 states to 129499 states and 352757 transitions. [2021-06-16 17:20:18,954 INFO L78 Accepts]: Start accepts. Automaton has 129499 states and 352757 transitions. Word has length 46 [2021-06-16 17:20:18,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:20:18,954 INFO L482 AbstractCegarLoop]: Abstraction has 129499 states and 352757 transitions. [2021-06-16 17:20:18,954 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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) [2021-06-16 17:20:18,954 INFO L276 IsEmpty]: Start isEmpty. Operand 129499 states and 352757 transitions. [2021-06-16 17:20:19,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:20:19,543 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:20:19,543 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:20:19,543 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-16 17:20:19,543 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:20:19,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:20:19,543 INFO L82 PathProgramCache]: Analyzing trace with hash -632176864, now seen corresponding path program 16 times [2021-06-16 17:20:19,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:20:19,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986882744] [2021-06-16 17:20:19,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:20:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:20:19,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:19,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:20:19,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:19,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:19,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:19,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:20:19,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:19,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:19,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:19,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:19,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:19,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:19,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:19,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:19,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:19,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:19,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:19,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:19,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:19,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:19,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:19,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:19,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:19,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:20:19,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:20:19,612 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:20:19,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986882744] [2021-06-16 17:20:19,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986882744] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:20:19,612 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:20:19,612 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-16 17:20:19,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113003912] [2021-06-16 17:20:19,613 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 17:20:19,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:20:19,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 17:20:19,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-06-16 17:20:19,613 INFO L87 Difference]: Start difference. First operand 129499 states and 352757 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-16 17:20:20,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:20:20,854 INFO L93 Difference]: Finished difference Result 186080 states and 514852 transitions. [2021-06-16 17:20:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-16 17:20:20,855 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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 46 [2021-06-16 17:20:20,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:20:21,534 INFO L225 Difference]: With dead ends: 186080 [2021-06-16 17:20:21,534 INFO L226 Difference]: Without dead ends: 185062 [2021-06-16 17:20:21,534 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 96.5ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-06-16 17:20:21,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185062 states. [2021-06-16 17:20:23,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185062 to 136669. [2021-06-16 17:20:24,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136669 states, 136668 states have (on average 2.7095223461234523) internal successors, (370305), 136668 states have internal predecessors, (370305), 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) [2021-06-16 17:20:24,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136669 states to 136669 states and 370305 transitions. [2021-06-16 17:20:24,862 INFO L78 Accepts]: Start accepts. Automaton has 136669 states and 370305 transitions. Word has length 46 [2021-06-16 17:20:24,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:20:24,862 INFO L482 AbstractCegarLoop]: Abstraction has 136669 states and 370305 transitions. [2021-06-16 17:20:24,862 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-16 17:20:24,862 INFO L276 IsEmpty]: Start isEmpty. Operand 136669 states and 370305 transitions. [2021-06-16 17:20:25,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:20:25,099 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:20:25,099 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:20:25,099 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-16 17:20:25,099 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:20:25,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:20:25,099 INFO L82 PathProgramCache]: Analyzing trace with hash 256741080, now seen corresponding path program 17 times [2021-06-16 17:20:25,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:20:25,100 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981343867] [2021-06-16 17:20:25,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:20:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:20:25,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:25,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:20:25,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:25,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:25,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:25,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:20:25,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:25,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:25,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:25,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:25,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:25,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:25,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:25,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:25,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:25,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:25,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:25,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:25,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:25,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:25,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:25,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:25,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:25,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:20:25,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:20:25,162 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:20:25,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981343867] [2021-06-16 17:20:25,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981343867] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:20:25,162 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:20:25,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-16 17:20:25,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637335974] [2021-06-16 17:20:25,163 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-16 17:20:25,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:20:25,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-16 17:20:25,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-06-16 17:20:25,164 INFO L87 Difference]: Start difference. First operand 136669 states and 370305 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:20:26,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:20:26,663 INFO L93 Difference]: Finished difference Result 195230 states and 535382 transitions. [2021-06-16 17:20:26,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 17:20:26,663 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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 46 [2021-06-16 17:20:26,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:20:27,056 INFO L225 Difference]: With dead ends: 195230 [2021-06-16 17:20:27,057 INFO L226 Difference]: Without dead ends: 194214 [2021-06-16 17:20:27,057 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 51.9ms TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2021-06-16 17:20:27,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194214 states. [2021-06-16 17:20:29,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194214 to 136245. [2021-06-16 17:20:30,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136245 states, 136244 states have (on average 2.7053301429787733) internal successors, (368585), 136244 states have internal predecessors, (368585), 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) [2021-06-16 17:20:30,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136245 states to 136245 states and 368585 transitions. [2021-06-16 17:20:30,862 INFO L78 Accepts]: Start accepts. Automaton has 136245 states and 368585 transitions. Word has length 46 [2021-06-16 17:20:30,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:20:30,862 INFO L482 AbstractCegarLoop]: Abstraction has 136245 states and 368585 transitions. [2021-06-16 17:20:30,862 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:20:30,862 INFO L276 IsEmpty]: Start isEmpty. Operand 136245 states and 368585 transitions. [2021-06-16 17:20:31,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:20:31,173 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:20:31,173 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:20:31,173 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-16 17:20:31,173 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:20:31,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:20:31,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1941863720, now seen corresponding path program 18 times [2021-06-16 17:20:31,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:20:31,178 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766464492] [2021-06-16 17:20:31,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:20:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:20:31,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:31,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:20:31,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:31,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:31,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:31,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:20:31,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:31,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:31,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:31,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:31,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:31,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:31,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:31,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:31,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:31,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:31,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:31,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:31,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:31,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:31,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:31,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:31,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:31,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:20:31,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:20:31,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:20:31,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766464492] [2021-06-16 17:20:31,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766464492] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:20:31,265 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:20:31,265 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-16 17:20:31,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995985177] [2021-06-16 17:20:31,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-16 17:20:31,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:20:31,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-16 17:20:31,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-16 17:20:31,266 INFO L87 Difference]: Start difference. First operand 136245 states and 368585 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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) [2021-06-16 17:20:32,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:20:32,583 INFO L93 Difference]: Finished difference Result 192382 states and 526866 transitions. [2021-06-16 17:20:32,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 17:20:32,584 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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 46 [2021-06-16 17:20:32,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:20:33,430 INFO L225 Difference]: With dead ends: 192382 [2021-06-16 17:20:33,430 INFO L226 Difference]: Without dead ends: 187750 [2021-06-16 17:20:33,431 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 96.4ms TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2021-06-16 17:20:33,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187750 states. [2021-06-16 17:20:36,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187750 to 133689. [2021-06-16 17:20:36,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133689 states, 133688 states have (on average 2.6900095745317456) internal successors, (359622), 133688 states have internal predecessors, (359622), 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) [2021-06-16 17:20:36,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133689 states to 133689 states and 359622 transitions. [2021-06-16 17:20:36,926 INFO L78 Accepts]: Start accepts. Automaton has 133689 states and 359622 transitions. Word has length 46 [2021-06-16 17:20:36,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:20:36,926 INFO L482 AbstractCegarLoop]: Abstraction has 133689 states and 359622 transitions. [2021-06-16 17:20:36,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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) [2021-06-16 17:20:36,926 INFO L276 IsEmpty]: Start isEmpty. Operand 133689 states and 359622 transitions. [2021-06-16 17:20:37,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:20:37,597 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:20:37,597 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:20:37,597 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-16 17:20:37,597 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:20:37,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:20:37,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1648333120, now seen corresponding path program 19 times [2021-06-16 17:20:37,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:20:37,597 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550817833] [2021-06-16 17:20:37,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:20:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:20:37,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:37,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:20:37,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:37,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:37,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:37,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:20:37,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:37,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:37,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:37,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:37,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:37,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:37,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:37,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:37,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:37,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:37,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:37,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:37,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:37,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:37,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:37,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:37,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:37,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:20:37,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:20:37,652 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:20:37,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550817833] [2021-06-16 17:20:37,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550817833] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:20:37,652 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:20:37,652 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-16 17:20:37,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506958151] [2021-06-16 17:20:37,652 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 17:20:37,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:20:37,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 17:20:37,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-06-16 17:20:37,653 INFO L87 Difference]: Start difference. First operand 133689 states and 359622 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-16 17:20:38,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:20:38,859 INFO L93 Difference]: Finished difference Result 193951 states and 528761 transitions. [2021-06-16 17:20:38,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-16 17:20:38,859 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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 46 [2021-06-16 17:20:38,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:20:39,281 INFO L225 Difference]: With dead ends: 193951 [2021-06-16 17:20:39,282 INFO L226 Difference]: Without dead ends: 185485 [2021-06-16 17:20:39,282 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 105.5ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-06-16 17:20:39,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185485 states. [2021-06-16 17:20:42,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185485 to 133388. [2021-06-16 17:20:42,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133388 states, 133387 states have (on average 2.684152128768171) internal successors, (358031), 133387 states have internal predecessors, (358031), 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) [2021-06-16 17:20:42,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133388 states to 133388 states and 358031 transitions. [2021-06-16 17:20:42,901 INFO L78 Accepts]: Start accepts. Automaton has 133388 states and 358031 transitions. Word has length 46 [2021-06-16 17:20:42,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:20:42,901 INFO L482 AbstractCegarLoop]: Abstraction has 133388 states and 358031 transitions. [2021-06-16 17:20:42,902 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-16 17:20:42,902 INFO L276 IsEmpty]: Start isEmpty. Operand 133388 states and 358031 transitions. [2021-06-16 17:20:43,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:20:43,129 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:20:43,129 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:20:43,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-16 17:20:43,130 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:20:43,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:20:43,130 INFO L82 PathProgramCache]: Analyzing trace with hash -436934664, now seen corresponding path program 20 times [2021-06-16 17:20:43,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:20:43,130 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564890129] [2021-06-16 17:20:43,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:20:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:20:43,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:43,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:20:43,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:43,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:43,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:43,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:20:43,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:43,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:43,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:43,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:43,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:43,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:43,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:43,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:43,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:43,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:43,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:43,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:43,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:43,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:43,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:43,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:43,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:43,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:20:43,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:20:43,186 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:20:43,186 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564890129] [2021-06-16 17:20:43,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564890129] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:20:43,186 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:20:43,186 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-16 17:20:43,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005792089] [2021-06-16 17:20:43,186 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 17:20:43,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:20:43,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 17:20:43,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-06-16 17:20:43,187 INFO L87 Difference]: Start difference. First operand 133388 states and 358031 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-16 17:20:44,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:20:44,830 INFO L93 Difference]: Finished difference Result 210545 states and 597326 transitions. [2021-06-16 17:20:44,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-16 17:20:44,830 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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 46 [2021-06-16 17:20:44,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:20:45,280 INFO L225 Difference]: With dead ends: 210545 [2021-06-16 17:20:45,280 INFO L226 Difference]: Without dead ends: 203681 [2021-06-16 17:20:45,281 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 94.7ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-06-16 17:20:45,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203681 states. [2021-06-16 17:20:48,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203681 to 128208. [2021-06-16 17:20:48,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128208 states, 128207 states have (on average 2.777219652593072) internal successors, (356059), 128207 states have internal predecessors, (356059), 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) [2021-06-16 17:20:49,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128208 states to 128208 states and 356059 transitions. [2021-06-16 17:20:49,255 INFO L78 Accepts]: Start accepts. Automaton has 128208 states and 356059 transitions. Word has length 46 [2021-06-16 17:20:49,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:20:49,255 INFO L482 AbstractCegarLoop]: Abstraction has 128208 states and 356059 transitions. [2021-06-16 17:20:49,255 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-16 17:20:49,255 INFO L276 IsEmpty]: Start isEmpty. Operand 128208 states and 356059 transitions. [2021-06-16 17:20:49,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:20:49,486 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:20:49,486 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:20:49,486 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-16 17:20:49,487 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:20:49,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:20:49,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1250299466, now seen corresponding path program 21 times [2021-06-16 17:20:49,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:20:49,487 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330453482] [2021-06-16 17:20:49,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:20:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:20:49,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:49,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:20:49,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:49,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:49,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:49,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:20:49,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:49,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:49,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:49,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:49,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:49,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:49,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:49,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:49,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:49,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:49,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:49,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:49,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:49,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:49,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:49,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:49,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:49,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:20:49,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:20:49,610 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:20:49,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330453482] [2021-06-16 17:20:49,610 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330453482] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:20:49,610 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:20:49,610 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-16 17:20:49,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974443028] [2021-06-16 17:20:49,610 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 17:20:49,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:20:49,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 17:20:49,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-06-16 17:20:49,611 INFO L87 Difference]: Start difference. First operand 128208 states and 356059 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-16 17:20:51,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:20:51,395 INFO L93 Difference]: Finished difference Result 203633 states and 574890 transitions. [2021-06-16 17:20:51,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-16 17:20:51,395 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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 46 [2021-06-16 17:20:51,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:20:51,866 INFO L225 Difference]: With dead ends: 203633 [2021-06-16 17:20:51,866 INFO L226 Difference]: Without dead ends: 198445 [2021-06-16 17:20:51,867 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 126.4ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-06-16 17:20:52,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198445 states. [2021-06-16 17:20:54,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198445 to 125812. [2021-06-16 17:20:54,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125812 states, 125811 states have (on average 2.7778493136530193) internal successors, (349484), 125811 states have internal predecessors, (349484), 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) [2021-06-16 17:20:55,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125812 states to 125812 states and 349484 transitions. [2021-06-16 17:20:55,548 INFO L78 Accepts]: Start accepts. Automaton has 125812 states and 349484 transitions. Word has length 46 [2021-06-16 17:20:55,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:20:55,548 INFO L482 AbstractCegarLoop]: Abstraction has 125812 states and 349484 transitions. [2021-06-16 17:20:55,548 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-16 17:20:55,548 INFO L276 IsEmpty]: Start isEmpty. Operand 125812 states and 349484 transitions. [2021-06-16 17:20:55,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:20:55,766 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:20:55,766 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:20:55,766 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-16 17:20:55,766 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:20:55,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:20:55,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1980169280, now seen corresponding path program 22 times [2021-06-16 17:20:55,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:20:55,767 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808104900] [2021-06-16 17:20:55,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:20:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:20:55,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:55,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:20:55,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:55,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:55,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:55,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:20:55,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:55,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:55,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:55,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:55,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:55,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:55,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:55,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:55,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:55,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:20:55,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:20:55,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:20:55,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:20:55,790 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:20:55,790 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808104900] [2021-06-16 17:20:55,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808104900] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:20:55,791 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:20:55,791 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 17:20:55,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084729659] [2021-06-16 17:20:55,791 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 17:20:55,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:20:55,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 17:20:55,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-16 17:20:55,791 INFO L87 Difference]: Start difference. First operand 125812 states and 349484 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-06-16 17:20:56,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:20:56,809 INFO L93 Difference]: Finished difference Result 191198 states and 529266 transitions. [2021-06-16 17:20:56,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 17:20:56,811 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2021-06-16 17:20:56,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:20:57,442 INFO L225 Difference]: With dead ends: 191198 [2021-06-16 17:20:57,442 INFO L226 Difference]: Without dead ends: 190370 [2021-06-16 17:20:57,443 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 14.7ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-06-16 17:20:57,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190370 states. [2021-06-16 17:20:59,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190370 to 116511. [2021-06-16 17:21:00,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116511 states, 116510 states have (on average 2.7178267959831772) internal successors, (316654), 116510 states have internal predecessors, (316654), 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) [2021-06-16 17:21:00,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116511 states to 116511 states and 316654 transitions. [2021-06-16 17:21:00,659 INFO L78 Accepts]: Start accepts. Automaton has 116511 states and 316654 transitions. Word has length 46 [2021-06-16 17:21:00,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:00,659 INFO L482 AbstractCegarLoop]: Abstraction has 116511 states and 316654 transitions. [2021-06-16 17:21:00,659 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-06-16 17:21:00,659 INFO L276 IsEmpty]: Start isEmpty. Operand 116511 states and 316654 transitions. [2021-06-16 17:21:00,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:00,849 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:00,849 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:00,849 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-16 17:21:00,850 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:00,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:00,850 INFO L82 PathProgramCache]: Analyzing trace with hash 204467136, now seen corresponding path program 23 times [2021-06-16 17:21:00,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:00,850 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373556218] [2021-06-16 17:21:00,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:00,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:00,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:00,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:00,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:00,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:00,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:21:00,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:00,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:00,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:00,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:00,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:00,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:00,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:00,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:00,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:00,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:00,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:00,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:00,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:00,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:00,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:00,884 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:00,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373556218] [2021-06-16 17:21:00,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373556218] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:00,884 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:00,884 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 17:21:00,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914473629] [2021-06-16 17:21:00,885 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 17:21:00,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:00,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 17:21:00,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-16 17:21:00,885 INFO L87 Difference]: Start difference. First operand 116511 states and 316654 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-06-16 17:21:01,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:01,735 INFO L93 Difference]: Finished difference Result 139490 states and 362269 transitions. [2021-06-16 17:21:01,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 17:21:01,735 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:01,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:01,996 INFO L225 Difference]: With dead ends: 139490 [2021-06-16 17:21:01,996 INFO L226 Difference]: Without dead ends: 135752 [2021-06-16 17:21:01,996 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 30.1ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-16 17:21:02,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135752 states. [2021-06-16 17:21:03,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135752 to 88945. [2021-06-16 17:21:03,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88945 states, 88944 states have (on average 2.561195808598669) internal successors, (227803), 88944 states have internal predecessors, (227803), 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) [2021-06-16 17:21:04,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88945 states to 88945 states and 227803 transitions. [2021-06-16 17:21:04,098 INFO L78 Accepts]: Start accepts. Automaton has 88945 states and 227803 transitions. Word has length 46 [2021-06-16 17:21:04,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:04,098 INFO L482 AbstractCegarLoop]: Abstraction has 88945 states and 227803 transitions. [2021-06-16 17:21:04,098 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-06-16 17:21:04,098 INFO L276 IsEmpty]: Start isEmpty. Operand 88945 states and 227803 transitions. [2021-06-16 17:21:04,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:04,244 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:04,244 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:04,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-16 17:21:04,244 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:04,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:04,245 INFO L82 PathProgramCache]: Analyzing trace with hash -49079794, now seen corresponding path program 24 times [2021-06-16 17:21:04,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:04,245 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017649457] [2021-06-16 17:21:04,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:04,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:04,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:04,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:04,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:04,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:04,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:21:04,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:04,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:04,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:04,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:04,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:04,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:04,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:04,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:04,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:04,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:04,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:04,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:04,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:04,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:04,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:04,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:04,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:04,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:04,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:04,304 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:04,304 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017649457] [2021-06-16 17:21:04,304 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017649457] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:04,304 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:04,304 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-16 17:21:04,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339130668] [2021-06-16 17:21:04,304 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-16 17:21:04,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:04,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-16 17:21:04,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-16 17:21:04,305 INFO L87 Difference]: Start difference. First operand 88945 states and 227803 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:21:05,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:05,554 INFO L93 Difference]: Finished difference Result 127405 states and 314827 transitions. [2021-06-16 17:21:05,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 17:21:05,554 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:05,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:05,822 INFO L225 Difference]: With dead ends: 127405 [2021-06-16 17:21:05,822 INFO L226 Difference]: Without dead ends: 121261 [2021-06-16 17:21:05,823 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 57.4ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-06-16 17:21:06,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121261 states. [2021-06-16 17:21:07,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121261 to 81024. [2021-06-16 17:21:07,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81024 states, 81023 states have (on average 2.467965886229836) internal successors, (199962), 81023 states have internal predecessors, (199962), 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) [2021-06-16 17:21:07,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81024 states to 81024 states and 199962 transitions. [2021-06-16 17:21:07,790 INFO L78 Accepts]: Start accepts. Automaton has 81024 states and 199962 transitions. Word has length 46 [2021-06-16 17:21:07,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:07,790 INFO L482 AbstractCegarLoop]: Abstraction has 81024 states and 199962 transitions. [2021-06-16 17:21:07,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:21:07,790 INFO L276 IsEmpty]: Start isEmpty. Operand 81024 states and 199962 transitions. [2021-06-16 17:21:07,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:07,915 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:07,915 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:07,915 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-16 17:21:07,915 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:07,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:07,915 INFO L82 PathProgramCache]: Analyzing trace with hash 240339534, now seen corresponding path program 25 times [2021-06-16 17:21:07,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:07,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474725266] [2021-06-16 17:21:07,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:07,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:07,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:07,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:07,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:07,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:07,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:21:07,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:07,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:07,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:07,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:07,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:07,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:07,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:07,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:07,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:07,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:07,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:07,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:07,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:07,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:07,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:07,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:07,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:07,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:07,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:07,957 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:07,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474725266] [2021-06-16 17:21:07,957 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474725266] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:07,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:07,958 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-16 17:21:07,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328817261] [2021-06-16 17:21:07,958 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-16 17:21:07,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:07,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-16 17:21:07,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-16 17:21:07,958 INFO L87 Difference]: Start difference. First operand 81024 states and 199962 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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) [2021-06-16 17:21:08,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:08,862 INFO L93 Difference]: Finished difference Result 113937 states and 282144 transitions. [2021-06-16 17:21:08,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 17:21:08,862 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:08,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:09,061 INFO L225 Difference]: With dead ends: 113937 [2021-06-16 17:21:09,062 INFO L226 Difference]: Without dead ends: 111769 [2021-06-16 17:21:09,062 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 61.9ms TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2021-06-16 17:21:09,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111769 states. [2021-06-16 17:21:10,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111769 to 78546. [2021-06-16 17:21:10,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78546 states, 78545 states have (on average 2.4571010248901906) internal successors, (192993), 78545 states have internal predecessors, (192993), 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) [2021-06-16 17:21:10,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78546 states to 78546 states and 192993 transitions. [2021-06-16 17:21:10,610 INFO L78 Accepts]: Start accepts. Automaton has 78546 states and 192993 transitions. Word has length 46 [2021-06-16 17:21:10,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:10,610 INFO L482 AbstractCegarLoop]: Abstraction has 78546 states and 192993 transitions. [2021-06-16 17:21:10,610 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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) [2021-06-16 17:21:10,610 INFO L276 IsEmpty]: Start isEmpty. Operand 78546 states and 192993 transitions. [2021-06-16 17:21:10,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:10,718 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:10,718 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:10,718 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-16 17:21:10,718 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:10,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:10,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1270389396, now seen corresponding path program 26 times [2021-06-16 17:21:10,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:10,718 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891013683] [2021-06-16 17:21:10,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:10,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:10,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:10,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:10,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:10,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:10,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:21:10,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:10,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:10,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:10,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:10,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:10,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:10,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:10,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:10,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:10,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:10,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:10,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:10,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:10,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:10,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:10,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:10,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:10,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:10,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:10,773 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:10,773 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891013683] [2021-06-16 17:21:10,773 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891013683] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:10,773 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:10,773 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-16 17:21:10,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932264648] [2021-06-16 17:21:10,773 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 17:21:10,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:10,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 17:21:10,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-06-16 17:21:10,774 INFO L87 Difference]: Start difference. First operand 78546 states and 192993 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-16 17:21:11,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:11,755 INFO L93 Difference]: Finished difference Result 109851 states and 268105 transitions. [2021-06-16 17:21:11,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-16 17:21:11,755 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:11,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:12,195 INFO L225 Difference]: With dead ends: 109851 [2021-06-16 17:21:12,195 INFO L226 Difference]: Without dead ends: 106659 [2021-06-16 17:21:12,195 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 92.3ms TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2021-06-16 17:21:12,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106659 states. [2021-06-16 17:21:13,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106659 to 76184. [2021-06-16 17:21:13,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76184 states, 76183 states have (on average 2.4389561975768874) internal successors, (185807), 76183 states have internal predecessors, (185807), 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) [2021-06-16 17:21:13,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76184 states to 76184 states and 185807 transitions. [2021-06-16 17:21:13,661 INFO L78 Accepts]: Start accepts. Automaton has 76184 states and 185807 transitions. Word has length 46 [2021-06-16 17:21:13,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:13,661 INFO L482 AbstractCegarLoop]: Abstraction has 76184 states and 185807 transitions. [2021-06-16 17:21:13,661 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-16 17:21:13,661 INFO L276 IsEmpty]: Start isEmpty. Operand 76184 states and 185807 transitions. [2021-06-16 17:21:13,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:13,773 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:13,773 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:13,773 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-16 17:21:13,773 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:13,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:13,773 INFO L82 PathProgramCache]: Analyzing trace with hash 391701304, now seen corresponding path program 27 times [2021-06-16 17:21:13,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:13,774 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882603459] [2021-06-16 17:21:13,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:13,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:13,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:13,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:13,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:13,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:13,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:13,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:13,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:13,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:13,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:13,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:13,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:13,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:13,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:13,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:13,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:13,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:13,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:13,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:13,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:13,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:13,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:13,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:13,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:13,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:13,818 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:13,818 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882603459] [2021-06-16 17:21:13,818 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882603459] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:13,818 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:13,818 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-16 17:21:13,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470269495] [2021-06-16 17:21:13,818 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-16 17:21:13,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:13,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-16 17:21:13,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-06-16 17:21:13,819 INFO L87 Difference]: Start difference. First operand 76184 states and 185807 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:21:14,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:14,717 INFO L93 Difference]: Finished difference Result 122616 states and 297712 transitions. [2021-06-16 17:21:14,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-16 17:21:14,717 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:14,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:14,912 INFO L225 Difference]: With dead ends: 122616 [2021-06-16 17:21:14,912 INFO L226 Difference]: Without dead ends: 122536 [2021-06-16 17:21:14,912 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 63.0ms TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2021-06-16 17:21:15,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122536 states. [2021-06-16 17:21:16,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122536 to 75976. [2021-06-16 17:21:16,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75976 states, 75975 states have (on average 2.436261928265877) internal successors, (185095), 75975 states have internal predecessors, (185095), 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) [2021-06-16 17:21:16,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75976 states to 75976 states and 185095 transitions. [2021-06-16 17:21:16,460 INFO L78 Accepts]: Start accepts. Automaton has 75976 states and 185095 transitions. Word has length 46 [2021-06-16 17:21:16,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:16,460 INFO L482 AbstractCegarLoop]: Abstraction has 75976 states and 185095 transitions. [2021-06-16 17:21:16,460 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:21:16,460 INFO L276 IsEmpty]: Start isEmpty. Operand 75976 states and 185095 transitions. [2021-06-16 17:21:16,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:16,852 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:16,852 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:16,852 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-16 17:21:16,852 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:16,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:16,853 INFO L82 PathProgramCache]: Analyzing trace with hash -334881992, now seen corresponding path program 28 times [2021-06-16 17:21:16,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:16,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235296136] [2021-06-16 17:21:16,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:16,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:16,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:16,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:16,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:16,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:16,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:16,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:16,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:16,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:16,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:16,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:16,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:16,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:16,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:16,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:16,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:16,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:16,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:16,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:16,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:16,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:16,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:16,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:16,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:16,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:16,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:16,908 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:16,908 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235296136] [2021-06-16 17:21:16,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235296136] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:16,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:16,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-16 17:21:16,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502593453] [2021-06-16 17:21:16,908 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-16 17:21:16,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:16,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-16 17:21:16,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-16 17:21:16,909 INFO L87 Difference]: Start difference. First operand 75976 states and 185095 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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) [2021-06-16 17:21:17,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:17,901 INFO L93 Difference]: Finished difference Result 118526 states and 288323 transitions. [2021-06-16 17:21:17,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-16 17:21:17,902 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:17,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:18,107 INFO L225 Difference]: With dead ends: 118526 [2021-06-16 17:21:18,108 INFO L226 Difference]: Without dead ends: 118126 [2021-06-16 17:21:18,108 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 83.9ms TimeCoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2021-06-16 17:21:18,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118126 states. [2021-06-16 17:21:19,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118126 to 75404. [2021-06-16 17:21:19,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75404 states, 75403 states have (on average 2.4268397809105737) internal successors, (182991), 75403 states have internal predecessors, (182991), 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) [2021-06-16 17:21:19,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75404 states to 75404 states and 182991 transitions. [2021-06-16 17:21:19,686 INFO L78 Accepts]: Start accepts. Automaton has 75404 states and 182991 transitions. Word has length 46 [2021-06-16 17:21:19,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:19,686 INFO L482 AbstractCegarLoop]: Abstraction has 75404 states and 182991 transitions. [2021-06-16 17:21:19,686 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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) [2021-06-16 17:21:19,686 INFO L276 IsEmpty]: Start isEmpty. Operand 75404 states and 182991 transitions. [2021-06-16 17:21:19,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:19,788 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:19,788 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:19,788 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-16 17:21:19,788 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:19,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:19,788 INFO L82 PathProgramCache]: Analyzing trace with hash 251638176, now seen corresponding path program 29 times [2021-06-16 17:21:19,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:19,788 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337395470] [2021-06-16 17:21:19,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:19,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:19,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:19,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:19,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:19,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:19,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:19,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:19,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:19,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:19,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:19,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:19,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:19,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:19,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:19,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:19,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:19,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:19,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:19,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:19,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:19,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:19,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:19,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:19,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:19,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:19,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:19,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337395470] [2021-06-16 17:21:19,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337395470] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:19,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:19,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-16 17:21:19,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796421719] [2021-06-16 17:21:19,841 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 17:21:19,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:19,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 17:21:19,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-06-16 17:21:19,842 INFO L87 Difference]: Start difference. First operand 75404 states and 182991 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-16 17:21:20,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:20,861 INFO L93 Difference]: Finished difference Result 114498 states and 277835 transitions. [2021-06-16 17:21:20,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-16 17:21:20,861 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:20,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:21,064 INFO L225 Difference]: With dead ends: 114498 [2021-06-16 17:21:21,065 INFO L226 Difference]: Without dead ends: 113586 [2021-06-16 17:21:21,065 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 98.4ms TimeCoverageRelationStatistics Valid=157, Invalid=305, Unknown=0, NotChecked=0, Total=462 [2021-06-16 17:21:21,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113586 states. [2021-06-16 17:21:22,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113586 to 74836. [2021-06-16 17:21:22,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74836 states, 74835 states have (on average 2.417037482461415) internal successors, (180879), 74835 states have internal predecessors, (180879), 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) [2021-06-16 17:21:22,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74836 states to 74836 states and 180879 transitions. [2021-06-16 17:21:22,860 INFO L78 Accepts]: Start accepts. Automaton has 74836 states and 180879 transitions. Word has length 46 [2021-06-16 17:21:22,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:22,860 INFO L482 AbstractCegarLoop]: Abstraction has 74836 states and 180879 transitions. [2021-06-16 17:21:22,860 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-16 17:21:22,860 INFO L276 IsEmpty]: Start isEmpty. Operand 74836 states and 180879 transitions. [2021-06-16 17:21:22,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:22,967 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:22,967 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:22,967 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-16 17:21:22,967 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:22,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:22,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1236511076, now seen corresponding path program 30 times [2021-06-16 17:21:22,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:22,968 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942559904] [2021-06-16 17:21:22,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:22,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:22,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:22,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:22,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:22,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:22,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:22,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:22,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:22,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:22,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:22,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:22,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:23,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:23,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:23,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:23,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:23,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:23,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:23,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:23,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:23,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:23,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:23,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:23,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:23,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:23,031 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:23,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942559904] [2021-06-16 17:21:23,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942559904] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:23,031 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:23,031 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-16 17:21:23,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337168701] [2021-06-16 17:21:23,031 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-16 17:21:23,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:23,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-16 17:21:23,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-06-16 17:21:23,031 INFO L87 Difference]: Start difference. First operand 74836 states and 180879 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-16 17:21:24,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:24,041 INFO L93 Difference]: Finished difference Result 114826 states and 277275 transitions. [2021-06-16 17:21:24,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-16 17:21:24,041 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:24,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:24,224 INFO L225 Difference]: With dead ends: 114826 [2021-06-16 17:21:24,224 INFO L226 Difference]: Without dead ends: 113756 [2021-06-16 17:21:24,225 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 133.5ms TimeCoverageRelationStatistics Valid=253, Invalid=503, Unknown=0, NotChecked=0, Total=756 [2021-06-16 17:21:24,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113756 states. [2021-06-16 17:21:25,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113756 to 75366. [2021-06-16 17:21:25,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75366 states, 75365 states have (on average 2.4094871624759504) internal successors, (181591), 75365 states have internal predecessors, (181591), 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) [2021-06-16 17:21:25,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75366 states to 75366 states and 181591 transitions. [2021-06-16 17:21:25,750 INFO L78 Accepts]: Start accepts. Automaton has 75366 states and 181591 transitions. Word has length 46 [2021-06-16 17:21:25,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:25,750 INFO L482 AbstractCegarLoop]: Abstraction has 75366 states and 181591 transitions. [2021-06-16 17:21:25,750 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-16 17:21:25,750 INFO L276 IsEmpty]: Start isEmpty. Operand 75366 states and 181591 transitions. [2021-06-16 17:21:25,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:25,852 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:25,852 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:25,852 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-16 17:21:25,852 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:25,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:25,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1938228904, now seen corresponding path program 31 times [2021-06-16 17:21:25,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:25,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492590349] [2021-06-16 17:21:25,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:25,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:25,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:25,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:25,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:25,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:25,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:25,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:25,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:25,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:25,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:25,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:25,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:25,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:25,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:25,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:25,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:25,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:25,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:25,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:25,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:25,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:25,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:25,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:25,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:25,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:25,897 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:25,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492590349] [2021-06-16 17:21:25,897 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492590349] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:25,897 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:25,897 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-16 17:21:25,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336602152] [2021-06-16 17:21:25,897 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-16 17:21:25,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:25,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-16 17:21:25,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-06-16 17:21:25,898 INFO L87 Difference]: Start difference. First operand 75366 states and 181591 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:21:26,181 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2021-06-16 17:21:26,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:26,800 INFO L93 Difference]: Finished difference Result 121508 states and 292231 transitions. [2021-06-16 17:21:26,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-16 17:21:26,800 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:26,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:27,008 INFO L225 Difference]: With dead ends: 121508 [2021-06-16 17:21:27,008 INFO L226 Difference]: Without dead ends: 120916 [2021-06-16 17:21:27,008 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 337.1ms TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2021-06-16 17:21:27,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120916 states. [2021-06-16 17:21:28,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120916 to 75166. [2021-06-16 17:21:28,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75166 states, 75165 states have (on average 2.401902481208009) internal successors, (180539), 75165 states have internal predecessors, (180539), 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) [2021-06-16 17:21:29,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75166 states to 75166 states and 180539 transitions. [2021-06-16 17:21:29,168 INFO L78 Accepts]: Start accepts. Automaton has 75166 states and 180539 transitions. Word has length 46 [2021-06-16 17:21:29,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:29,169 INFO L482 AbstractCegarLoop]: Abstraction has 75166 states and 180539 transitions. [2021-06-16 17:21:29,169 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:21:29,169 INFO L276 IsEmpty]: Start isEmpty. Operand 75166 states and 180539 transitions. [2021-06-16 17:21:29,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:29,292 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:29,292 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:29,292 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-16 17:21:29,293 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:29,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:29,293 INFO L82 PathProgramCache]: Analyzing trace with hash 158133592, now seen corresponding path program 32 times [2021-06-16 17:21:29,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:29,293 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721718277] [2021-06-16 17:21:29,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:29,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:29,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:29,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:29,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:29,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:29,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:29,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:29,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:29,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:29,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:29,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:29,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:29,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:29,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:29,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:29,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:29,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:29,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:29,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:29,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:29,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:29,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:29,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:29,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:29,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:29,339 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:29,339 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721718277] [2021-06-16 17:21:29,339 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721718277] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:29,339 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:29,339 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-16 17:21:29,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296686835] [2021-06-16 17:21:29,339 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-16 17:21:29,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:29,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-16 17:21:29,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-16 17:21:29,340 INFO L87 Difference]: Start difference. First operand 75166 states and 180539 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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) [2021-06-16 17:21:30,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:30,284 INFO L93 Difference]: Finished difference Result 118964 states and 285827 transitions. [2021-06-16 17:21:30,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-16 17:21:30,285 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:30,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:30,494 INFO L225 Difference]: With dead ends: 118964 [2021-06-16 17:21:30,494 INFO L226 Difference]: Without dead ends: 116136 [2021-06-16 17:21:30,495 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 93.1ms TimeCoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2021-06-16 17:21:30,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116136 states. [2021-06-16 17:21:31,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116136 to 74302. [2021-06-16 17:21:31,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74302 states, 74301 states have (on average 2.38428823299821) internal successors, (177155), 74301 states have internal predecessors, (177155), 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) [2021-06-16 17:21:31,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74302 states to 74302 states and 177155 transitions. [2021-06-16 17:21:31,993 INFO L78 Accepts]: Start accepts. Automaton has 74302 states and 177155 transitions. Word has length 46 [2021-06-16 17:21:31,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:31,993 INFO L482 AbstractCegarLoop]: Abstraction has 74302 states and 177155 transitions. [2021-06-16 17:21:31,993 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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) [2021-06-16 17:21:31,993 INFO L276 IsEmpty]: Start isEmpty. Operand 74302 states and 177155 transitions. [2021-06-16 17:21:32,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:32,092 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:32,092 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:32,092 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-16 17:21:32,092 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:32,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:32,093 INFO L82 PathProgramCache]: Analyzing trace with hash -546636864, now seen corresponding path program 33 times [2021-06-16 17:21:32,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:32,093 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899058914] [2021-06-16 17:21:32,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:32,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:32,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:32,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:32,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:32,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:32,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:32,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:32,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:32,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:32,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:32,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:32,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:32,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:32,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:32,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:32,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:32,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:32,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:32,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:32,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:32,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:32,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:32,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:32,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:32,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:32,150 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:32,150 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899058914] [2021-06-16 17:21:32,150 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899058914] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:32,150 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:32,150 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-16 17:21:32,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508865315] [2021-06-16 17:21:32,150 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 17:21:32,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:32,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 17:21:32,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-06-16 17:21:32,151 INFO L87 Difference]: Start difference. First operand 74302 states and 177155 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-16 17:21:33,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:33,085 INFO L93 Difference]: Finished difference Result 116172 states and 278033 transitions. [2021-06-16 17:21:33,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-16 17:21:33,085 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:33,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:33,286 INFO L225 Difference]: With dead ends: 116172 [2021-06-16 17:21:33,287 INFO L226 Difference]: Without dead ends: 110572 [2021-06-16 17:21:33,287 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 101.9ms TimeCoverageRelationStatistics Valid=157, Invalid=305, Unknown=0, NotChecked=0, Total=462 [2021-06-16 17:21:33,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110572 states. [2021-06-16 17:21:34,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110572 to 72886. [2021-06-16 17:21:34,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72886 states, 72885 states have (on average 2.373149482060781) internal successors, (172967), 72885 states have internal predecessors, (172967), 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) [2021-06-16 17:21:35,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72886 states to 72886 states and 172967 transitions. [2021-06-16 17:21:35,120 INFO L78 Accepts]: Start accepts. Automaton has 72886 states and 172967 transitions. Word has length 46 [2021-06-16 17:21:35,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:35,121 INFO L482 AbstractCegarLoop]: Abstraction has 72886 states and 172967 transitions. [2021-06-16 17:21:35,121 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-16 17:21:35,121 INFO L276 IsEmpty]: Start isEmpty. Operand 72886 states and 172967 transitions. [2021-06-16 17:21:35,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:35,257 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:35,257 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:35,257 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-16 17:21:35,257 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:35,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:35,258 INFO L82 PathProgramCache]: Analyzing trace with hash 281286844, now seen corresponding path program 34 times [2021-06-16 17:21:35,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:35,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449524823] [2021-06-16 17:21:35,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:35,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:35,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:35,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:35,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:35,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:35,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:35,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:35,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:35,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:35,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:35,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:35,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:35,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:35,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:35,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:35,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:35,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:35,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:35,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:35,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:35,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:35,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:35,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:35,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:35,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:35,318 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:35,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449524823] [2021-06-16 17:21:35,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449524823] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:35,318 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:35,318 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-16 17:21:35,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176848901] [2021-06-16 17:21:35,318 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-16 17:21:35,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:35,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-16 17:21:35,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-06-16 17:21:35,319 INFO L87 Difference]: Start difference. First operand 72886 states and 172967 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-16 17:21:36,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:36,365 INFO L93 Difference]: Finished difference Result 115076 states and 274368 transitions. [2021-06-16 17:21:36,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-16 17:21:36,366 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:36,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:36,558 INFO L225 Difference]: With dead ends: 115076 [2021-06-16 17:21:36,558 INFO L226 Difference]: Without dead ends: 108570 [2021-06-16 17:21:36,558 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 153.1ms TimeCoverageRelationStatistics Valid=253, Invalid=503, Unknown=0, NotChecked=0, Total=756 [2021-06-16 17:21:36,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108570 states. [2021-06-16 17:21:37,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108570 to 70884. [2021-06-16 17:21:37,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70884 states, 70883 states have (on average 2.3773542316211222) internal successors, (168514), 70883 states have internal predecessors, (168514), 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) [2021-06-16 17:21:38,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70884 states to 70884 states and 168514 transitions. [2021-06-16 17:21:38,036 INFO L78 Accepts]: Start accepts. Automaton has 70884 states and 168514 transitions. Word has length 46 [2021-06-16 17:21:38,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:38,037 INFO L482 AbstractCegarLoop]: Abstraction has 70884 states and 168514 transitions. [2021-06-16 17:21:38,037 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-16 17:21:38,037 INFO L276 IsEmpty]: Start isEmpty. Operand 70884 states and 168514 transitions. [2021-06-16 17:21:38,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:38,140 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:38,140 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:38,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-16 17:21:38,140 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:38,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:38,140 INFO L82 PathProgramCache]: Analyzing trace with hash 159510388, now seen corresponding path program 35 times [2021-06-16 17:21:38,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:38,140 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612385860] [2021-06-16 17:21:38,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:38,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:38,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:38,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:38,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:38,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:38,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:38,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:38,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:38,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:38,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:38,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:38,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:38,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:38,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:38,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:38,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:38,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:38,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:38,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:38,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:38,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:38,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:38,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:38,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:38,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:38,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:38,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612385860] [2021-06-16 17:21:38,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612385860] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:38,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:38,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-16 17:21:38,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466965589] [2021-06-16 17:21:38,199 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-16 17:21:38,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:38,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-16 17:21:38,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-06-16 17:21:38,200 INFO L87 Difference]: Start difference. First operand 70884 states and 168514 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-16 17:21:39,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:39,305 INFO L93 Difference]: Finished difference Result 115710 states and 280338 transitions. [2021-06-16 17:21:39,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-16 17:21:39,305 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:39,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:39,525 INFO L225 Difference]: With dead ends: 115710 [2021-06-16 17:21:39,525 INFO L226 Difference]: Without dead ends: 111060 [2021-06-16 17:21:39,525 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 133.8ms TimeCoverageRelationStatistics Valid=253, Invalid=503, Unknown=0, NotChecked=0, Total=756 [2021-06-16 17:21:39,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111060 states. [2021-06-16 17:21:40,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111060 to 61838. [2021-06-16 17:21:40,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61838 states, 61837 states have (on average 2.430518944968223) internal successors, (150296), 61837 states have internal predecessors, (150296), 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) [2021-06-16 17:21:41,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61838 states to 61838 states and 150296 transitions. [2021-06-16 17:21:41,047 INFO L78 Accepts]: Start accepts. Automaton has 61838 states and 150296 transitions. Word has length 46 [2021-06-16 17:21:41,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:41,047 INFO L482 AbstractCegarLoop]: Abstraction has 61838 states and 150296 transitions. [2021-06-16 17:21:41,047 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-16 17:21:41,047 INFO L276 IsEmpty]: Start isEmpty. Operand 61838 states and 150296 transitions. [2021-06-16 17:21:41,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:41,361 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:41,361 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:41,373 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-16 17:21:41,373 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:41,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:41,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1801670202, now seen corresponding path program 36 times [2021-06-16 17:21:41,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:41,374 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498348242] [2021-06-16 17:21:41,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:41,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:41,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:41,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:41,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:41,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:41,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:41,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:41,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:41,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:41,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:41,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:41,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:41,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:41,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:41,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:41,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:41,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:41,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:41,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:41,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:41,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:41,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:41,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:41,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:41,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:41,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:41,478 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:41,478 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498348242] [2021-06-16 17:21:41,478 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498348242] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:41,478 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:41,478 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-16 17:21:41,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54383584] [2021-06-16 17:21:41,478 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-16 17:21:41,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:41,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-16 17:21:41,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-06-16 17:21:41,479 INFO L87 Difference]: Start difference. First operand 61838 states and 150296 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-16 17:21:42,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:42,544 INFO L93 Difference]: Finished difference Result 106186 states and 258773 transitions. [2021-06-16 17:21:42,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-16 17:21:42,545 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:42,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:42,719 INFO L225 Difference]: With dead ends: 106186 [2021-06-16 17:21:42,719 INFO L226 Difference]: Without dead ends: 103768 [2021-06-16 17:21:42,719 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 135.1ms TimeCoverageRelationStatistics Valid=253, Invalid=503, Unknown=0, NotChecked=0, Total=756 [2021-06-16 17:21:42,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103768 states. [2021-06-16 17:21:43,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103768 to 58632. [2021-06-16 17:21:43,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58632 states, 58631 states have (on average 2.411659361088844) internal successors, (141398), 58631 states have internal predecessors, (141398), 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) [2021-06-16 17:21:44,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58632 states to 58632 states and 141398 transitions. [2021-06-16 17:21:44,099 INFO L78 Accepts]: Start accepts. Automaton has 58632 states and 141398 transitions. Word has length 46 [2021-06-16 17:21:44,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:44,099 INFO L482 AbstractCegarLoop]: Abstraction has 58632 states and 141398 transitions. [2021-06-16 17:21:44,099 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-16 17:21:44,100 INFO L276 IsEmpty]: Start isEmpty. Operand 58632 states and 141398 transitions. [2021-06-16 17:21:44,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:44,181 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:44,181 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:44,182 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-16 17:21:44,182 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:44,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:44,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1728029554, now seen corresponding path program 37 times [2021-06-16 17:21:44,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:44,182 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256517549] [2021-06-16 17:21:44,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:44,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:44,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:44,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:44,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:44,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:44,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:44,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:44,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:44,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:44,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:44,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:44,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:44,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:44,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:44,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:44,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:44,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:44,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:44,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:44,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:44,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:44,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:44,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:44,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:44,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:44,229 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:44,229 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256517549] [2021-06-16 17:21:44,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256517549] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:44,229 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:44,229 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-16 17:21:44,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502123219] [2021-06-16 17:21:44,230 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-16 17:21:44,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:44,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-16 17:21:44,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-16 17:21:44,231 INFO L87 Difference]: Start difference. First operand 58632 states and 141398 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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) [2021-06-16 17:21:45,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:45,103 INFO L93 Difference]: Finished difference Result 107178 states and 260297 transitions. [2021-06-16 17:21:45,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-16 17:21:45,103 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:45,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:45,282 INFO L225 Difference]: With dead ends: 107178 [2021-06-16 17:21:45,282 INFO L226 Difference]: Without dead ends: 106770 [2021-06-16 17:21:45,282 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 79.6ms TimeCoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2021-06-16 17:21:45,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106770 states. [2021-06-16 17:21:46,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106770 to 57852. [2021-06-16 17:21:46,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57852 states, 57851 states have (on average 2.395498781352094) internal successors, (138582), 57851 states have internal predecessors, (138582), 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) [2021-06-16 17:21:46,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57852 states to 57852 states and 138582 transitions. [2021-06-16 17:21:46,649 INFO L78 Accepts]: Start accepts. Automaton has 57852 states and 138582 transitions. Word has length 46 [2021-06-16 17:21:46,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:46,649 INFO L482 AbstractCegarLoop]: Abstraction has 57852 states and 138582 transitions. [2021-06-16 17:21:46,649 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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) [2021-06-16 17:21:46,649 INFO L276 IsEmpty]: Start isEmpty. Operand 57852 states and 138582 transitions. [2021-06-16 17:21:46,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:46,723 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:46,723 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:46,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-16 17:21:46,723 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:46,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:46,724 INFO L82 PathProgramCache]: Analyzing trace with hash 897856370, now seen corresponding path program 38 times [2021-06-16 17:21:46,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:46,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701735598] [2021-06-16 17:21:46,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:46,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:46,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:46,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:46,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:46,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:46,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:46,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:46,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:46,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:46,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:46,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:46,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:46,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:46,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:46,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:46,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:46,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:46,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:46,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:46,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:46,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:46,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:46,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:46,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:46,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:46,777 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:46,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701735598] [2021-06-16 17:21:46,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701735598] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:46,777 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:46,777 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-16 17:21:46,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415154871] [2021-06-16 17:21:46,777 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 17:21:46,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:46,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 17:21:46,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-06-16 17:21:46,778 INFO L87 Difference]: Start difference. First operand 57852 states and 138582 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-16 17:21:47,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:47,624 INFO L93 Difference]: Finished difference Result 100092 states and 242795 transitions. [2021-06-16 17:21:47,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-16 17:21:47,625 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:47,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:47,776 INFO L225 Difference]: With dead ends: 100092 [2021-06-16 17:21:47,776 INFO L226 Difference]: Without dead ends: 99180 [2021-06-16 17:21:47,776 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 94.2ms TimeCoverageRelationStatistics Valid=157, Invalid=305, Unknown=0, NotChecked=0, Total=462 [2021-06-16 17:21:47,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99180 states. [2021-06-16 17:21:48,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99180 to 57284. [2021-06-16 17:21:48,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57284 states, 57283 states have (on average 2.3823822076357732) internal successors, (136470), 57283 states have internal predecessors, (136470), 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) [2021-06-16 17:21:49,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57284 states to 57284 states and 136470 transitions. [2021-06-16 17:21:49,150 INFO L78 Accepts]: Start accepts. Automaton has 57284 states and 136470 transitions. Word has length 46 [2021-06-16 17:21:49,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:49,150 INFO L482 AbstractCegarLoop]: Abstraction has 57284 states and 136470 transitions. [2021-06-16 17:21:49,150 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-16 17:21:49,150 INFO L276 IsEmpty]: Start isEmpty. Operand 57284 states and 136470 transitions. [2021-06-16 17:21:49,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:49,223 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:49,223 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:49,223 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-16 17:21:49,223 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:49,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:49,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1499002732, now seen corresponding path program 39 times [2021-06-16 17:21:49,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:49,223 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88451047] [2021-06-16 17:21:49,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:49,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:49,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:49,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:49,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:49,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:49,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:49,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:49,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:49,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:49,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:49,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:49,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:49,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:49,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:49,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:49,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:49,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:49,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:49,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:49,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:49,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:49,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:49,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:49,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:49,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:49,275 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:49,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88451047] [2021-06-16 17:21:49,275 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88451047] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:49,275 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:49,276 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-16 17:21:49,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540555369] [2021-06-16 17:21:49,276 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-16 17:21:49,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:49,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-16 17:21:49,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-06-16 17:21:49,276 INFO L87 Difference]: Start difference. First operand 57284 states and 136470 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-16 17:21:50,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:50,201 INFO L93 Difference]: Finished difference Result 97824 states and 237004 transitions. [2021-06-16 17:21:50,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-16 17:21:50,201 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:50,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:50,464 INFO L225 Difference]: With dead ends: 97824 [2021-06-16 17:21:50,464 INFO L226 Difference]: Without dead ends: 96385 [2021-06-16 17:21:50,464 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 129.2ms TimeCoverageRelationStatistics Valid=253, Invalid=503, Unknown=0, NotChecked=0, Total=756 [2021-06-16 17:21:50,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96385 states. [2021-06-16 17:21:51,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96385 to 54849. [2021-06-16 17:21:51,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54849 states, 54848 states have (on average 2.3950554259043173) internal successors, (131364), 54848 states have internal predecessors, (131364), 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) [2021-06-16 17:21:51,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54849 states to 54849 states and 131364 transitions. [2021-06-16 17:21:51,671 INFO L78 Accepts]: Start accepts. Automaton has 54849 states and 131364 transitions. Word has length 46 [2021-06-16 17:21:51,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:51,671 INFO L482 AbstractCegarLoop]: Abstraction has 54849 states and 131364 transitions. [2021-06-16 17:21:51,671 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-16 17:21:51,671 INFO L276 IsEmpty]: Start isEmpty. Operand 54849 states and 131364 transitions. [2021-06-16 17:21:51,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:51,748 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:51,748 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:51,748 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-16 17:21:51,748 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:51,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:51,749 INFO L82 PathProgramCache]: Analyzing trace with hash -50611898, now seen corresponding path program 40 times [2021-06-16 17:21:51,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:51,749 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050242465] [2021-06-16 17:21:51,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:51,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:51,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:51,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:51,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:51,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:51,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:21:51,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:51,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:51,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:51,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:51,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:51,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:51,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:51,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:51,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:51,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:51,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:51,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:51,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:51,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:51,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050242465] [2021-06-16 17:21:51,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050242465] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:51,774 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:51,774 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 17:21:51,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731388332] [2021-06-16 17:21:51,774 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 17:21:51,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:51,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 17:21:51,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-16 17:21:51,775 INFO L87 Difference]: Start difference. First operand 54849 states and 131364 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-06-16 17:21:52,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:52,278 INFO L93 Difference]: Finished difference Result 85674 states and 209168 transitions. [2021-06-16 17:21:52,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 17:21:52,278 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:52,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:52,416 INFO L225 Difference]: With dead ends: 85674 [2021-06-16 17:21:52,416 INFO L226 Difference]: Without dead ends: 83148 [2021-06-16 17:21:52,416 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 14.3ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-06-16 17:21:52,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83148 states. [2021-06-16 17:21:53,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83148 to 39449. [2021-06-16 17:21:53,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39449 states, 39448 states have (on average 2.3808051105252486) internal successors, (93918), 39448 states have internal predecessors, (93918), 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) [2021-06-16 17:21:53,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39449 states to 39449 states and 93918 transitions. [2021-06-16 17:21:53,402 INFO L78 Accepts]: Start accepts. Automaton has 39449 states and 93918 transitions. Word has length 46 [2021-06-16 17:21:53,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:53,402 INFO L482 AbstractCegarLoop]: Abstraction has 39449 states and 93918 transitions. [2021-06-16 17:21:53,402 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-06-16 17:21:53,402 INFO L276 IsEmpty]: Start isEmpty. Operand 39449 states and 93918 transitions. [2021-06-16 17:21:53,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:53,619 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:53,619 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:53,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-16 17:21:53,619 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:53,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:53,619 INFO L82 PathProgramCache]: Analyzing trace with hash -2126953594, now seen corresponding path program 41 times [2021-06-16 17:21:53,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:53,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835537433] [2021-06-16 17:21:53,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:53,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:53,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:53,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:53,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:53,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:53,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:21:53,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:53,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:53,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:53,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:53,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:53,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:53,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:53,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:53,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:53,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:53,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:53,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:53,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:53,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:53,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:53,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:53,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835537433] [2021-06-16 17:21:53,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835537433] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:53,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:53,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 17:21:53,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567990769] [2021-06-16 17:21:53,657 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 17:21:53,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:53,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 17:21:53,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-06-16 17:21:53,658 INFO L87 Difference]: Start difference. First operand 39449 states and 93918 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-06-16 17:21:53,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:53,876 INFO L93 Difference]: Finished difference Result 35810 states and 82173 transitions. [2021-06-16 17:21:53,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 17:21:53,877 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:53,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:53,920 INFO L225 Difference]: With dead ends: 35810 [2021-06-16 17:21:53,920 INFO L226 Difference]: Without dead ends: 29565 [2021-06-16 17:21:53,920 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 36.9ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-16 17:21:53,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29565 states. [2021-06-16 17:21:54,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29565 to 15957. [2021-06-16 17:21:54,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15957 states, 15956 states have (on average 2.3438831787415393) internal successors, (37399), 15956 states have internal predecessors, (37399), 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) [2021-06-16 17:21:54,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15957 states to 15957 states and 37399 transitions. [2021-06-16 17:21:54,208 INFO L78 Accepts]: Start accepts. Automaton has 15957 states and 37399 transitions. Word has length 46 [2021-06-16 17:21:54,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:54,208 INFO L482 AbstractCegarLoop]: Abstraction has 15957 states and 37399 transitions. [2021-06-16 17:21:54,208 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-06-16 17:21:54,208 INFO L276 IsEmpty]: Start isEmpty. Operand 15957 states and 37399 transitions. [2021-06-16 17:21:54,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:54,352 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:54,353 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:54,353 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-16 17:21:54,353 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:54,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:54,353 INFO L82 PathProgramCache]: Analyzing trace with hash -326638082, now seen corresponding path program 42 times [2021-06-16 17:21:54,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:54,353 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871168361] [2021-06-16 17:21:54,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:54,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:54,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:54,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:21:54,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:54,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:54,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:54,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:54,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:54,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:54,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:54,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:54,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:54,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:54,391 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:54,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871168361] [2021-06-16 17:21:54,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871168361] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:54,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:54,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-16 17:21:54,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637641599] [2021-06-16 17:21:54,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-16 17:21:54,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:54,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-16 17:21:54,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-06-16 17:21:54,391 INFO L87 Difference]: Start difference. First operand 15957 states and 37399 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:21:54,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:54,642 INFO L93 Difference]: Finished difference Result 13761 states and 28629 transitions. [2021-06-16 17:21:54,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 17:21:54,642 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:54,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:54,651 INFO L225 Difference]: With dead ends: 13761 [2021-06-16 17:21:54,651 INFO L226 Difference]: Without dead ends: 7971 [2021-06-16 17:21:54,651 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 54.1ms TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-06-16 17:21:54,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7971 states. [2021-06-16 17:21:54,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7971 to 4727. [2021-06-16 17:21:54,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4727 states, 4726 states have (on average 2.1921286500211594) internal successors, (10360), 4726 states have internal predecessors, (10360), 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) [2021-06-16 17:21:54,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4727 states to 4727 states and 10360 transitions. [2021-06-16 17:21:54,714 INFO L78 Accepts]: Start accepts. Automaton has 4727 states and 10360 transitions. Word has length 46 [2021-06-16 17:21:54,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:54,714 INFO L482 AbstractCegarLoop]: Abstraction has 4727 states and 10360 transitions. [2021-06-16 17:21:54,714 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 9 states have internal predecessors, (46), 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) [2021-06-16 17:21:54,714 INFO L276 IsEmpty]: Start isEmpty. Operand 4727 states and 10360 transitions. [2021-06-16 17:21:54,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:54,718 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:54,718 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:54,718 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-16 17:21:54,718 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:54,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:54,718 INFO L82 PathProgramCache]: Analyzing trace with hash -119165924, now seen corresponding path program 43 times [2021-06-16 17:21:54,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:54,718 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330492091] [2021-06-16 17:21:54,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:54,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:54,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:54,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 17:21:54,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:54,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:54,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:54,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:54,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:54,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:54,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:54,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:54,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:54,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:54,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:54,776 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:54,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330492091] [2021-06-16 17:21:54,776 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330492091] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:54,776 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:54,776 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-16 17:21:54,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444470285] [2021-06-16 17:21:54,776 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 17:21:54,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:54,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 17:21:54,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-06-16 17:21:54,776 INFO L87 Difference]: Start difference. First operand 4727 states and 10360 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-16 17:21:55,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:55,051 INFO L93 Difference]: Finished difference Result 4719 states and 8670 transitions. [2021-06-16 17:21:55,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-16 17:21:55,052 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:55,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:55,053 INFO L225 Difference]: With dead ends: 4719 [2021-06-16 17:21:55,053 INFO L226 Difference]: Without dead ends: 1335 [2021-06-16 17:21:55,053 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 90.5ms TimeCoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420 [2021-06-16 17:21:55,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2021-06-16 17:21:55,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 947. [2021-06-16 17:21:55,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 946 states have (on average 1.879492600422833) internal successors, (1778), 946 states have internal predecessors, (1778), 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) [2021-06-16 17:21:55,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1778 transitions. [2021-06-16 17:21:55,062 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1778 transitions. Word has length 46 [2021-06-16 17:21:55,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:55,062 INFO L482 AbstractCegarLoop]: Abstraction has 947 states and 1778 transitions. [2021-06-16 17:21:55,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-16 17:21:55,062 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1778 transitions. [2021-06-16 17:21:55,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 17:21:55,063 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 17:21:55,063 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 17:21:55,063 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-16 17:21:55,063 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-16 17:21:55,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 17:21:55,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1856439020, now seen corresponding path program 44 times [2021-06-16 17:21:55,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 17:21:55,064 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959556538] [2021-06-16 17:21:55,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 17:21:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 17:21:55,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:55,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 17:21:55,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:55,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:55,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:55,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:55,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:55,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:55,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:55,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:55,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:55,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:55,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:55,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:55,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:55,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:55,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:55,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:55,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:55,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:55,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:55,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-16 17:21:55,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 17:21:55,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 17:21:55,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 17:21:55,127 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 17:21:55,127 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959556538] [2021-06-16 17:21:55,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959556538] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 17:21:55,127 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 17:21:55,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-16 17:21:55,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467065991] [2021-06-16 17:21:55,127 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-16 17:21:55,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 17:21:55,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-16 17:21:55,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-06-16 17:21:55,128 INFO L87 Difference]: Start difference. First operand 947 states and 1778 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-16 17:21:55,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 17:21:55,325 INFO L93 Difference]: Finished difference Result 1118 states and 1889 transitions. [2021-06-16 17:21:55,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-16 17:21:55,325 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 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 46 [2021-06-16 17:21:55,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 17:21:55,325 INFO L225 Difference]: With dead ends: 1118 [2021-06-16 17:21:55,325 INFO L226 Difference]: Without dead ends: 0 [2021-06-16 17:21:55,325 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 94.3ms TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2021-06-16 17:21:55,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-16 17:21:55,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-16 17:21:55,326 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) [2021-06-16 17:21:55,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-16 17:21:55,326 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2021-06-16 17:21:55,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 17:21:55,326 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-16 17:21:55,326 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 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) [2021-06-16 17:21:55,326 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-16 17:21:55,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-16 17:21:55,326 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-16 17:21:55,327 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-16 17:21:55,329 INFO L202 PluginConnector]: Adding new model ticket-6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.06 05:21:55 BasicIcfg [2021-06-16 17:21:55,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-16 17:21:55,329 INFO L168 Benchmark]: Toolchain (without parser) took 185824.21 ms. Allocated memory was 180.4 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 159.5 MB in the beginning and 6.4 GB in the end (delta: -6.3 GB). Peak memory consumption was 1.5 GB. Max. memory is 8.0 GB. [2021-06-16 17:21:55,329 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.37 ms. Allocated memory is still 180.4 MB. Free memory is still 160.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 17:21:55,329 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.37 ms. Allocated memory is still 180.4 MB. Free memory was 159.5 MB in the beginning and 158.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-16 17:21:55,329 INFO L168 Benchmark]: Boogie Preprocessor took 10.06 ms. Allocated memory is still 180.4 MB. Free memory was 157.8 MB in the beginning and 157.0 MB in the end (delta: 889.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 17:21:55,329 INFO L168 Benchmark]: RCFGBuilder took 203.03 ms. Allocated memory is still 180.4 MB. Free memory was 157.0 MB in the beginning and 140.4 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-06-16 17:21:55,329 INFO L168 Benchmark]: TraceAbstraction took 185584.04 ms. Allocated memory was 180.4 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 140.0 MB in the beginning and 6.4 GB in the end (delta: -6.3 GB). Peak memory consumption was 1.5 GB. Max. memory is 8.0 GB. [2021-06-16 17:21:55,330 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 0.37 ms. Allocated memory is still 180.4 MB. Free memory is still 160.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 20.37 ms. Allocated memory is still 180.4 MB. Free memory was 159.5 MB in the beginning and 158.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 10.06 ms. Allocated memory is still 180.4 MB. Free memory was 157.8 MB in the beginning and 157.0 MB in the end (delta: 889.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 203.03 ms. Allocated memory is still 180.4 MB. Free memory was 157.0 MB in the beginning and 140.4 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 185584.04 ms. Allocated memory was 180.4 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 140.0 MB in the beginning and 6.4 GB in the end (delta: -6.3 GB). Peak memory consumption was 1.5 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 480336, positive: 447793, positive conditional: 447793, positive unconditional: 0, negative: 32543, negative conditional: 32543, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 480335, positive: 447793, positive conditional: 0, positive unconditional: 447793, negative: 32542, negative conditional: 0, negative unconditional: 32542, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 745, positive: 687, positive conditional: 0, positive unconditional: 687, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 745, positive: 633, positive conditional: 0, positive unconditional: 633, negative: 112, negative conditional: 0, negative unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 112, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 249, positive: 127, positive conditional: 0, positive unconditional: 127, negative: 122, negative conditional: 0, negative unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 480335, positive: 447106, positive conditional: 0, positive unconditional: 447106, negative: 32484, negative conditional: 0, negative unconditional: 32484, unknown: 745, unknown conditional: 0, unknown unconditional: 745] , Statistics on independence cache: Total cache size (in pairs): 745, Positive cache size: 687, Positive conditional cache size: 0, Positive unconditional cache size: 687, Negative cache size: 58, Negative conditional cache size: 0, Negative unconditional cache size: 58, Independence queries for same thread: 1 - PositiveResult [Line: 110]: 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 13 procedures, 98 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 185436.0ms, OverallIterations: 44, TraceHistogramMax: 1, EmptinessCheckTime: 8796.2ms, AutomataDifference: 60318.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13886.6ms, PartialOrderReductionTime: 13872.1ms, HoareTripleCheckerStatistics: 4541 SDtfs, 9608 SDslu, 19275 SDs, 0 SdLazy, 22725 SolverSat, 4435 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10206.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 812 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 670 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1677 ImplicationChecksByTransitivity, 3585.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=136669occurred in iteration=16, InterpolantAutomatonStates: 627, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 99198.4ms AutomataMinimizationTime, 44 MinimizatonAttempts, 2046348 StatesRemovedByMinimization, 43 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 75.3ms SsaConstructionTime, 273.4ms SatisfiabilityAnalysisTime, 2623.7ms InterpolantComputationTime, 2024 NumberOfCodeBlocks, 2024 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 1980 ConstructedInterpolants, 0 QuantifiedInterpolants, 6317 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 44 InterpolantComputations, 44 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...