/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-7.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 01:11:11,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 01:11:11,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 01:11:11,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-14 01:11:11,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-14 01:11:11,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-14 01:11:11,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-14 01:11:11,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-14 01:11:11,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-14 01:11:11,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-14 01:11:11,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-14 01:11:11,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-14 01:11:11,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 01:11:11,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 01:11:11,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 01:11:11,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 01:11:11,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 01:11:11,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 01:11:11,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 01:11:11,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 01:11:11,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 01:11:11,761 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 01:11:11,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 01:11:11,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 01:11:11,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 01:11:11,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-14 01:11:11,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-14 01:11:11,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-14 01:11:11,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-14 01:11:11,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-14 01:11:11,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-14 01:11:11,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-14 01:11:11,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-14 01:11:11,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 01:11:11,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 01:11:11,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 01:11:11,776 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 [2021-07-14 01:11:11,800 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 01:11:11,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 01:11:11,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 01:11:11,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 01:11:11,803 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 01:11:11,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 01:11:11,803 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 01:11:11,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 01:11:11,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 01:11:11,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 01:11:11,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 01:11:11,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 01:11:11,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 01:11:11,804 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 01:11:11,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 01:11:11,804 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 01:11:11,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 01:11:11,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 01:11:11,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 01:11:11,805 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 01:11:11,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 01:11:11,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 01:11:11,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 01:11:11,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 01:11:11,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 01:11:11,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 01:11:11,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 01:11:11,815 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 01:11:11,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 01:11:11,815 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-14 01:11:11,815 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 01:11:12,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 01:11:12,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 01:11:12,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 01:11:12,050 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 01:11:12,050 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 01:11:12,051 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-7.wvr.bpl [2021-07-14 01:11:12,051 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-7.wvr.bpl' [2021-07-14 01:11:12,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 01:11:12,072 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 01:11:12,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 01:11:12,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 01:11:12,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 01:11:12,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:11:12" (1/1) ... [2021-07-14 01:11:12,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:11:12" (1/1) ... [2021-07-14 01:11:12,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 01:11:12,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 01:11:12,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 01:11:12,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 01:11:12,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:11:12" (1/1) ... [2021-07-14 01:11:12,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:11:12" (1/1) ... [2021-07-14 01:11:12,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:11:12" (1/1) ... [2021-07-14 01:11:12,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:11:12" (1/1) ... [2021-07-14 01:11:12,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:11:12" (1/1) ... [2021-07-14 01:11:12,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:11:12" (1/1) ... [2021-07-14 01:11:12,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:11:12" (1/1) ... [2021-07-14 01:11:12,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 01:11:12,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 01:11:12,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 01:11:12,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 01:11:12,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:11:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 01:11:12,195 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 01:11:12,197 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 01:11:12,197 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 01:11:12,197 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 01:11:12,197 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 01:11:12,197 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 01:11:12,197 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 01:11:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 01:11:12,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 01:11:12,198 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 01:11:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 01:11:12,198 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 01:11:12,198 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-07-14 01:11:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-07-14 01:11:12,198 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-07-14 01:11:12,198 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-07-14 01:11:12,199 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-07-14 01:11:12,199 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-07-14 01:11:12,199 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-07-14 01:11:12,200 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-07-14 01:11:12,200 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-07-14 01:11:12,200 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2021-07-14 01:11:12,200 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2021-07-14 01:11:12,201 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2021-07-14 01:11:12,202 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 01:11:12,377 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 01:11:12,377 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 01:11:12,379 INFO L202 PluginConnector]: Adding new model ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:11:12 BoogieIcfgContainer [2021-07-14 01:11:12,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 01:11:12,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 01:11:12,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 01:11:12,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 01:11:12,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 01:11:12" (1/2) ... [2021-07-14 01:11:12,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67fa9e61 and model type ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:11:12, skipping insertion in model container [2021-07-14 01:11:12,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:11:12" (2/2) ... [2021-07-14 01:11:12,384 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-7.wvr.bpl [2021-07-14 01:11:12,387 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 01:11:12,387 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 01:11:12,387 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 01:11:12,388 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 01:11:12,442 INFO L149 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2021-07-14 01:11:12,457 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-07-14 01:11:12,469 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 01:11:12,469 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 01:11:12,470 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 01:11:12,470 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 01:11:12,470 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 01:11:12,470 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 01:11:12,470 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 01:11:12,470 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 01:11:42,192 INFO L276 IsEmpty]: Start isEmpty. Operand has 447900 states, 343702 states have (on average 3.7472228849410243) internal successors, (1287928), 447899 states have internal predecessors, (1287928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 01:11:45,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-07-14 01:11:45,197 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 01:11:45,198 INFO L508 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, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 01:11:45,198 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 01:11:45,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 01:11:45,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1670187225, now seen corresponding path program 1 times [2021-07-14 01:11:45,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 01:11:45,207 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543877686] [2021-07-14 01:11:45,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 01:11:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 01:11:45,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:11:45,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 01:11:45,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:11:45,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-14 01:11:45,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:11:45,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-14 01:11:45,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:11:45,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-14 01:11:45,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:11:45,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-14 01:11:45,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:11:45,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-14 01:11:45,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:11:45,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-14 01:11:45,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:11:45,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-14 01:11:45,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:11:45,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-14 01:11:45,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:11:45,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-14 01:11:45,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:11:45,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-14 01:11:45,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:11:45,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-14 01:11:45,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:11:45,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-14 01:11:45,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:11:45,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 01:11:45,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 01:11:45,407 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 01:11:45,407 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543877686] [2021-07-14 01:11:45,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543877686] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 01:11:45,408 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 01:11:45,408 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 01:11:45,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717257985] [2021-07-14 01:11:45,411 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 01:11:45,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 01:11:45,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 01:11:45,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-07-14 01:11:46,843 INFO L87 Difference]: Start difference. First operand has 447900 states, 343702 states have (on average 3.7472228849410243) internal successors, (1287928), 447899 states have internal predecessors, (1287928), 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 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 01:11:58,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 01:11:58,279 INFO L93 Difference]: Finished difference Result 1234922 states and 3581670 transitions. [2021-07-14 01:11:58,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 01:11:58,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 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 53 [2021-07-14 01:11:58,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 01:12:04,979 INFO L225 Difference]: With dead ends: 1234922 [2021-07-14 01:12:04,979 INFO L226 Difference]: Without dead ends: 492721 [2021-07-14 01:12:04,980 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 39.3ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-07-14 01:12:13,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492721 states. [2021-07-14 01:12:27,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492721 to 239347. [2021-07-14 01:12:29,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239347 states, 239346 states have (on average 4.129586456427097) internal successors, (988400), 239346 states have internal predecessors, (988400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 01:12:32,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239347 states to 239347 states and 988400 transitions. [2021-07-14 01:12:32,063 INFO L78 Accepts]: Start accepts. Automaton has 239347 states and 988400 transitions. Word has length 53 [2021-07-14 01:12:32,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 01:12:32,064 INFO L482 AbstractCegarLoop]: Abstraction has 239347 states and 988400 transitions. [2021-07-14 01:12:32,065 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 01:12:32,066 INFO L276 IsEmpty]: Start isEmpty. Operand 239347 states and 988400 transitions. [2021-07-14 01:12:33,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-07-14 01:12:33,508 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 01:12:33,508 INFO L508 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, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 01:12:33,509 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 01:12:33,509 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-07-14 01:12:33,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 01:12:33,513 INFO L82 PathProgramCache]: Analyzing trace with hash 819063001, now seen corresponding path program 2 times [2021-07-14 01:12:33,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 01:12:33,514 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662437414] [2021-07-14 01:12:33,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 01:12:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 01:12:33,662 INFO L142 QuantifierPusher]: treesize reduction 15, result has 46.4 percent of original size [2021-07-14 01:12:33,663 INFO L147 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size 9 [2021-07-14 01:12:33,970 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 8 [2021-07-14 01:12:33,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:12:33,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 01:12:33,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:12:33,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 01:12:33,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:12:33,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 01:12:33,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:12:33,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 01:12:33,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:12:33,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 01:12:33,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:12:33,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-14 01:12:33,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:12:34,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 01:12:34,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:12:34,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-14 01:12:34,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 01:12:34,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 01:12:34,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 01:12:34,002 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 01:12:34,002 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662437414] [2021-07-14 01:12:34,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662437414] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 01:12:34,003 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 01:12:34,003 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 01:12:34,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259723087] [2021-07-14 01:12:34,016 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 01:12:34,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 01:12:34,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 01:12:34,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-07-14 01:12:34,017 INFO L87 Difference]: Start difference. First operand 239347 states and 988400 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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)