/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-SemanticLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/fork_loop_local.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-13 00:03:13,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-13 00:03:13,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-13 00:03:13,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-13 00:03:13,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-13 00:03:13,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-13 00:03:13,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-13 00:03:13,824 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-Sleep-SemanticLbe-Delay.epf [2021-03-13 00:03:13,857 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-13 00:03:13,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-13 00:03:13,857 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-13 00:03:13,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-13 00:03:13,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-13 00:03:13,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-13 00:03:13,860 INFO L138 SettingsManager]: * Use SBE=true [2021-03-13 00:03:13,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-13 00:03:13,861 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-13 00:03:13,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-13 00:03:13,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-13 00:03:13,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-13 00:03:13,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-13 00:03:13,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-13 00:03:13,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-13 00:03:13,862 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-13 00:03:13,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-13 00:03:13,863 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-13 00:03:13,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-13 00:03:13,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-13 00:03:13,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-13 00:03:13,863 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-13 00:03:13,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-13 00:03:13,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-13 00:03:13,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-13 00:03:13,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-13 00:03:13,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-13 00:03:13,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-13 00:03:13,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-13 00:03:13,865 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-13 00:03:13,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-13 00:03:13,865 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-03-13 00:03:13,865 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-13 00:03:14,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-13 00:03:14,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-13 00:03:14,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-13 00:03:14,193 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-13 00:03:14,194 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-13 00:03:14,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/fork_loop_local.bpl [2021-03-13 00:03:14,195 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/fork_loop_local.bpl' [2021-03-13 00:03:14,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-13 00:03:14,230 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-13 00:03:14,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-13 00:03:14,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-13 00:03:14,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-13 00:03:14,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "fork_loop_local.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 12:03:14" (1/1) ... [2021-03-13 00:03:14,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "fork_loop_local.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 12:03:14" (1/1) ... [2021-03-13 00:03:14,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-13 00:03:14,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-13 00:03:14,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-13 00:03:14,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-13 00:03:14,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "fork_loop_local.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 12:03:14" (1/1) ... [2021-03-13 00:03:14,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "fork_loop_local.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 12:03:14" (1/1) ... [2021-03-13 00:03:14,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "fork_loop_local.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 12:03:14" (1/1) ... [2021-03-13 00:03:14,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "fork_loop_local.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 12:03:14" (1/1) ... [2021-03-13 00:03:14,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "fork_loop_local.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 12:03:14" (1/1) ... [2021-03-13 00:03:14,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "fork_loop_local.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 12:03:14" (1/1) ... [2021-03-13 00:03:14,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "fork_loop_local.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 12:03:14" (1/1) ... [2021-03-13 00:03:14,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-13 00:03:14,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-13 00:03:14,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-13 00:03:14,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-13 00:03:14,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "fork_loop_local.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 12:03:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-13 00:03:14,335 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-13 00:03:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-13 00:03:14,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-13 00:03:14,336 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread given in one single declaration [2021-03-13 00:03:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-03-13 00:03:14,336 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-03-13 00:03:14,337 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-13 00:03:14,430 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-13 00:03:14,430 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-03-13 00:03:14,431 INFO L202 PluginConnector]: Adding new model fork_loop_local.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.03 12:03:14 BoogieIcfgContainer [2021-03-13 00:03:14,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-13 00:03:14,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-13 00:03:14,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-13 00:03:14,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-13 00:03:14,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_loop_local.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.03 12:03:14" (1/2) ... [2021-03-13 00:03:14,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9f4867 and model type fork_loop_local.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 12:03:14, skipping insertion in model container [2021-03-13 00:03:14,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_loop_local.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.03 12:03:14" (2/2) ... [2021-03-13 00:03:14,439 INFO L111 eAbstractionObserver]: Analyzing ICFG fork_loop_local.bpl [2021-03-13 00:03:14,446 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-13 00:03:14,446 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-13 00:03:14,449 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-13 00:03:14,450 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-13 00:03:14,471 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:14,471 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:14,472 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:14,472 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:14,477 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:14,480 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-13 00:03:14,494 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-03-13 00:03:14,558 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 00:03:14,558 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 00:03:14,558 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 00:03:14,558 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 00:03:14,558 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 00:03:14,559 INFO L381 AbstractCegarLoop]: Difference is false Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 00:03:14,561 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 00:03:14,561 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 00:03:14,568 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 00:03:14,568 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 12 places, 9 transitions, 23 flow [2021-03-13 00:03:14,571 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 12 places, 9 transitions, 23 flow [2021-03-13 00:03:14,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 12 places, 9 transitions, 23 flow [2021-03-13 00:03:14,591 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-03-13 00:03:14,591 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-13 00:03:14,592 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15 conditions, 10 events. 0/10 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 7 event pairs, 0 based on Foata normal form. 0/9 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-13 00:03:14,594 INFO L116 LiptonReduction]: Number of co-enabled transitions 20 [2021-03-13 00:03:14,831 INFO L131 LiptonReduction]: Checked pairs total: 8 [2021-03-13 00:03:14,832 INFO L133 LiptonReduction]: Total number of compositions: 4 [2021-03-13 00:03:14,855 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:03:14,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:14,859 INFO L82 PathProgramCache]: Analyzing trace with hash 42154, now seen corresponding path program 1 times [2021-03-13 00:03:14,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:14,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94328731] [2021-03-13 00:03:14,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:14,936 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:14,942 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:14,956 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-13 00:03:14,957 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-13 00:03:14,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-13 00:03:14,962 WARN L342 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-13 00:03:14,962 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-03-13 00:03:14,969 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:14,969 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:14,969 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:14,969 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:14,971 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:14,972 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:14,972 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:14,972 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:14,974 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:14,976 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:14,977 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-13 00:03:14,977 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 00:03:14,986 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 00:03:14,987 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 00:03:14,987 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 00:03:14,987 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 00:03:14,987 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 00:03:14,987 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 00:03:14,987 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 00:03:14,987 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 00:03:14,988 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 00:03:14,988 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 15 transitions, 42 flow [2021-03-13 00:03:14,989 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 15 transitions, 42 flow [2021-03-13 00:03:14,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 15 transitions, 42 flow [2021-03-13 00:03:14,994 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-03-13 00:03:14,995 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-13 00:03:14,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 25 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-13 00:03:14,996 INFO L116 LiptonReduction]: Number of co-enabled transitions 100 [2021-03-13 00:03:15,060 INFO L131 LiptonReduction]: Checked pairs total: 184 [2021-03-13 00:03:15,061 INFO L133 LiptonReduction]: Total number of compositions: 2 [2021-03-13 00:03:15,065 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:15,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:15,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1822264857, now seen corresponding path program 1 times [2021-03-13 00:03:15,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:15,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257094714] [2021-03-13 00:03:15,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:15,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:15,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-13 00:03:15,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257094714] [2021-03-13 00:03:15,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:15,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-13 00:03:15,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409851625] [2021-03-13 00:03:15,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-13 00:03:15,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:15,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-13 00:03:15,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-13 00:03:15,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:15,193 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:15,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-03-13 00:03:15,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:15,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-13 00:03:15,226 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-13 00:03:15,227 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:15,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:15,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1822385331, now seen corresponding path program 1 times [2021-03-13 00:03:15,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:15,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657325972] [2021-03-13 00:03:15,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:15,235 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:15,242 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:15,246 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-13 00:03:15,246 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-13 00:03:15,248 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-13 00:03:15,254 WARN L342 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-13 00:03:15,255 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-03-13 00:03:15,261 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,262 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,262 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,262 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,263 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,263 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,264 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,264 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,265 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,266 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,266 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,266 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,268 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,270 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,271 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,272 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-13 00:03:15,272 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 00:03:15,277 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 00:03:15,277 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 00:03:15,277 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 00:03:15,277 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 00:03:15,277 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 00:03:15,277 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 00:03:15,277 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 00:03:15,277 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 00:03:15,278 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 00:03:15,279 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 21 transitions, 63 flow [2021-03-13 00:03:15,279 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 21 transitions, 63 flow [2021-03-13 00:03:15,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 21 transitions, 63 flow [2021-03-13 00:03:15,284 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-13 00:03:15,284 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-13 00:03:15,284 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 24 events. 0/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 60 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-13 00:03:15,285 INFO L116 LiptonReduction]: Number of co-enabled transitions 240 [2021-03-13 00:03:15,345 INFO L131 LiptonReduction]: Checked pairs total: 456 [2021-03-13 00:03:15,345 INFO L133 LiptonReduction]: Total number of compositions: 3 [2021-03-13 00:03:15,347 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:15,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:15,348 INFO L82 PathProgramCache]: Analyzing trace with hash 80894512, now seen corresponding path program 1 times [2021-03-13 00:03:15,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:15,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646330481] [2021-03-13 00:03:15,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:15,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 00:03:15,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646330481] [2021-03-13 00:03:15,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:15,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-13 00:03:15,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009605863] [2021-03-13 00:03:15,379 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-13 00:03:15,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:15,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-13 00:03:15,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-13 00:03:15,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:15,380 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:15,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-03-13 00:03:15,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:15,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:15,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-13 00:03:15,459 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:15,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:15,460 INFO L82 PathProgramCache]: Analyzing trace with hash 451969455, now seen corresponding path program 1 times [2021-03-13 00:03:15,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:15,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933587068] [2021-03-13 00:03:15,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:15,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-13 00:03:15,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933587068] [2021-03-13 00:03:15,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:15,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-13 00:03:15,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802219769] [2021-03-13 00:03:15,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-13 00:03:15,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:15,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-13 00:03:15,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-13 00:03:15,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:15,544 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:15,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-03-13 00:03:15,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:15,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:15,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:15,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:15,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-13 00:03:15,617 INFO L428 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:15,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:15,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1126151635, now seen corresponding path program 1 times [2021-03-13 00:03:15,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:15,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619705938] [2021-03-13 00:03:15,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:15,622 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:15,625 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:15,627 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-13 00:03:15,627 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-13 00:03:15,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-13 00:03:15,628 WARN L342 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-13 00:03:15,628 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-03-13 00:03:15,632 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,632 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,633 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,633 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,633 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,633 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,633 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,633 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,634 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,634 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,634 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,634 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,634 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,635 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,635 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,635 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,635 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,636 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,637 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,638 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:15,638 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-13 00:03:15,638 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 00:03:15,643 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 00:03:15,643 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 00:03:15,643 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 00:03:15,643 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 00:03:15,643 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 00:03:15,643 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 00:03:15,643 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 00:03:15,643 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 00:03:15,645 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 00:03:15,645 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 27 transitions, 86 flow [2021-03-13 00:03:15,645 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 27 transitions, 86 flow [2021-03-13 00:03:15,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 27 transitions, 86 flow [2021-03-13 00:03:15,651 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2021-03-13 00:03:15,651 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-13 00:03:15,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 31 events. 0/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 90 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-13 00:03:15,652 INFO L116 LiptonReduction]: Number of co-enabled transitions 440 [2021-03-13 00:03:15,756 INFO L131 LiptonReduction]: Checked pairs total: 894 [2021-03-13 00:03:15,759 INFO L133 LiptonReduction]: Total number of compositions: 4 [2021-03-13 00:03:15,764 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:15,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:15,764 INFO L82 PathProgramCache]: Analyzing trace with hash -895539096, now seen corresponding path program 1 times [2021-03-13 00:03:15,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:15,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012332538] [2021-03-13 00:03:15,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:15,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-13 00:03:15,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012332538] [2021-03-13 00:03:15,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:15,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-13 00:03:15,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972771092] [2021-03-13 00:03:15,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-13 00:03:15,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:15,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-13 00:03:15,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-13 00:03:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:15,795 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:15,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-03-13 00:03:15,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:15,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:15,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-13 00:03:15,859 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:15,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:15,860 INFO L82 PathProgramCache]: Analyzing trace with hash 772411453, now seen corresponding path program 1 times [2021-03-13 00:03:15,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:15,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687919726] [2021-03-13 00:03:15,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:15,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-13 00:03:15,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687919726] [2021-03-13 00:03:15,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:15,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-13 00:03:15,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224616908] [2021-03-13 00:03:15,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-13 00:03:15,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:15,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-13 00:03:15,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-13 00:03:15,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:15,926 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:15,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-03-13 00:03:15,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:15,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:16,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:16,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:16,019 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-13 00:03:16,019 INFO L428 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:16,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:16,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1945550908, now seen corresponding path program 1 times [2021-03-13 00:03:16,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:16,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988260330] [2021-03-13 00:03:16,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:16,085 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-13 00:03:16,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988260330] [2021-03-13 00:03:16,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:16,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-13 00:03:16,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915769383] [2021-03-13 00:03:16,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-13 00:03:16,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:16,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-13 00:03:16,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-13 00:03:16,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:16,087 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:16,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2021-03-13 00:03:16,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:16,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:16,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:16,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:16,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:16,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:16,230 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-13 00:03:16,230 INFO L428 AbstractCegarLoop]: === Iteration 4 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:16,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:16,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1945430052, now seen corresponding path program 1 times [2021-03-13 00:03:16,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:16,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107320254] [2021-03-13 00:03:16,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:16,247 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:16,253 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:16,255 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-13 00:03:16,255 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-13 00:03:16,255 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-13 00:03:16,257 WARN L342 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-13 00:03:16,257 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-03-13 00:03:16,263 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,263 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,264 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,264 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,264 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,264 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,264 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,264 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,265 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,265 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,265 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,265 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,265 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,266 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,266 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,266 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,266 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,266 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,266 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,267 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,267 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,268 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,269 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,269 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,270 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:16,271 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-13 00:03:16,271 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 00:03:16,282 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 00:03:16,282 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 00:03:16,283 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 00:03:16,283 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 00:03:16,283 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 00:03:16,283 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 00:03:16,283 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 00:03:16,283 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 00:03:16,284 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 00:03:16,284 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 33 transitions, 111 flow [2021-03-13 00:03:16,285 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 33 transitions, 111 flow [2021-03-13 00:03:16,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 33 transitions, 111 flow [2021-03-13 00:03:16,292 INFO L129 PetriNetUnfolder]: 0/38 cut-off events. [2021-03-13 00:03:16,292 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-13 00:03:16,292 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 38 events. 0/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 116 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-03-13 00:03:16,293 INFO L116 LiptonReduction]: Number of co-enabled transitions 700 [2021-03-13 00:03:16,408 INFO L131 LiptonReduction]: Checked pairs total: 1462 [2021-03-13 00:03:16,409 INFO L133 LiptonReduction]: Total number of compositions: 5 [2021-03-13 00:03:16,411 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:16,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:16,411 INFO L82 PathProgramCache]: Analyzing trace with hash 145120927, now seen corresponding path program 1 times [2021-03-13 00:03:16,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:16,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593466342] [2021-03-13 00:03:16,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:16,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 00:03:16,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593466342] [2021-03-13 00:03:16,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:16,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-13 00:03:16,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984716760] [2021-03-13 00:03:16,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-13 00:03:16,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:16,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-13 00:03:16,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-13 00:03:16,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:16,439 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:16,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-03-13 00:03:16,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:16,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:16,490 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-13 00:03:16,490 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:16,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:16,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1733652950, now seen corresponding path program 1 times [2021-03-13 00:03:16,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:16,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268575797] [2021-03-13 00:03:16,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:16,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-13 00:03:16,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268575797] [2021-03-13 00:03:16,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:16,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-13 00:03:16,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096330106] [2021-03-13 00:03:16,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-13 00:03:16,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:16,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-13 00:03:16,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-13 00:03:16,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:16,527 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:16,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-03-13 00:03:16,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:16,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:16,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:16,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:16,635 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-13 00:03:16,635 INFO L428 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:16,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:16,636 INFO L82 PathProgramCache]: Analyzing trace with hash -272386434, now seen corresponding path program 1 times [2021-03-13 00:03:16,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:16,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361472725] [2021-03-13 00:03:16,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:16,683 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-13 00:03:16,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361472725] [2021-03-13 00:03:16,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:16,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-13 00:03:16,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609706723] [2021-03-13 00:03:16,684 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-13 00:03:16,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:16,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-13 00:03:16,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-13 00:03:16,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:16,684 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:16,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-03-13 00:03:16,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:16,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:16,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:16,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:16,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:16,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:16,831 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-13 00:03:16,831 INFO L428 AbstractCegarLoop]: === Iteration 4 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:16,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:16,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1470080823, now seen corresponding path program 1 times [2021-03-13 00:03:16,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:16,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757963114] [2021-03-13 00:03:16,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:16,918 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-13 00:03:16,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757963114] [2021-03-13 00:03:16,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:16,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-13 00:03:16,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042367198] [2021-03-13 00:03:16,919 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-13 00:03:16,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:16,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-13 00:03:16,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-13 00:03:16,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:16,920 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:16,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 00:03:16,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:16,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:16,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:16,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:17,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:17,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:17,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:17,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:17,067 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-13 00:03:17,067 INFO L428 AbstractCegarLoop]: === Iteration 5 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:17,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:17,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1672135765, now seen corresponding path program 1 times [2021-03-13 00:03:17,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:17,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954230326] [2021-03-13 00:03:17,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:17,073 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:17,089 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:17,091 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-13 00:03:17,091 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-13 00:03:17,091 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-13 00:03:17,093 WARN L342 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-13 00:03:17,093 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-03-13 00:03:17,101 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,101 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,101 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,101 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,104 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,104 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,104 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,104 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,105 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,105 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,105 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,105 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,106 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,106 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,107 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,107 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,108 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,108 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,108 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,108 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,109 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,109 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,109 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,109 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,110 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,112 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,113 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,114 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,114 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,115 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,116 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-13 00:03:17,116 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 00:03:17,128 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 00:03:17,128 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 00:03:17,129 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 00:03:17,129 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 00:03:17,129 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 00:03:17,129 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 00:03:17,129 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 00:03:17,129 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 00:03:17,130 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 00:03:17,130 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 39 transitions, 138 flow [2021-03-13 00:03:17,130 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 39 transitions, 138 flow [2021-03-13 00:03:17,130 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 39 transitions, 138 flow [2021-03-13 00:03:17,137 INFO L129 PetriNetUnfolder]: 0/45 cut-off events. [2021-03-13 00:03:17,137 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-13 00:03:17,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 45 events. 0/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 149 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-03-13 00:03:17,138 INFO L116 LiptonReduction]: Number of co-enabled transitions 1020 [2021-03-13 00:03:17,237 INFO L131 LiptonReduction]: Checked pairs total: 2242 [2021-03-13 00:03:17,237 INFO L133 LiptonReduction]: Total number of compositions: 6 [2021-03-13 00:03:17,238 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:17,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:17,239 INFO L82 PathProgramCache]: Analyzing trace with hash 187284127, now seen corresponding path program 1 times [2021-03-13 00:03:17,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:17,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497122672] [2021-03-13 00:03:17,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:17,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 00:03:17,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497122672] [2021-03-13 00:03:17,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:17,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-13 00:03:17,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093969772] [2021-03-13 00:03:17,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-13 00:03:17,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:17,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-13 00:03:17,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-13 00:03:17,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:17,262 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:17,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-03-13 00:03:17,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:17,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:17,325 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-13 00:03:17,325 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:17,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:17,326 INFO L82 PathProgramCache]: Analyzing trace with hash -566166825, now seen corresponding path program 1 times [2021-03-13 00:03:17,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:17,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851656284] [2021-03-13 00:03:17,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:17,408 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-03-13 00:03:17,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851656284] [2021-03-13 00:03:17,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:17,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-13 00:03:17,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707951340] [2021-03-13 00:03:17,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-13 00:03:17,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:17,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-13 00:03:17,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-13 00:03:17,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:17,409 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:17,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-03-13 00:03:17,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:17,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:17,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:17,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:17,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-13 00:03:17,471 INFO L428 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:17,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:17,471 INFO L82 PathProgramCache]: Analyzing trace with hash -371301754, now seen corresponding path program 1 times [2021-03-13 00:03:17,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:17,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596582603] [2021-03-13 00:03:17,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:17,474 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:17,476 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:17,477 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-13 00:03:17,477 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-13 00:03:17,478 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-13 00:03:17,478 WARN L342 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-13 00:03:17,479 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2021-03-13 00:03:17,484 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,484 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,484 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,484 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,485 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,485 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,485 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,485 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,485 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,485 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,485 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,485 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,485 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,486 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,486 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,486 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,486 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,486 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,486 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,486 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,486 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,487 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,487 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,487 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,487 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,487 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,487 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,487 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,488 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,488 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,489 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,489 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,490 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,491 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,491 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,492 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-13 00:03:17,492 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-03-13 00:03:17,503 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 00:03:17,503 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 00:03:17,503 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 00:03:17,503 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 00:03:17,503 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 00:03:17,503 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 00:03:17,503 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 00:03:17,504 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 00:03:17,504 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 00:03:17,504 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 45 transitions, 167 flow [2021-03-13 00:03:17,505 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 45 transitions, 167 flow [2021-03-13 00:03:17,505 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 45 transitions, 167 flow [2021-03-13 00:03:17,512 INFO L129 PetriNetUnfolder]: 0/52 cut-off events. [2021-03-13 00:03:17,512 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-13 00:03:17,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 176 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-03-13 00:03:17,513 INFO L116 LiptonReduction]: Number of co-enabled transitions 1400 Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 00:03:17,623 INFO L131 LiptonReduction]: Checked pairs total: 2900 [2021-03-13 00:03:17,623 INFO L133 LiptonReduction]: Total number of compositions: 7 [2021-03-13 00:03:17,626 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:17,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:17,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1266611187, now seen corresponding path program 1 times [2021-03-13 00:03:17,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:17,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816432848] [2021-03-13 00:03:17,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:17,630 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:17,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:17,631 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:17,632 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-13 00:03:17,632 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-13 00:03:17,632 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-13 00:03:17,633 WARN L342 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-13 00:03:17,633 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2021-03-13 00:03:17,640 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,640 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,640 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,640 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,641 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,641 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,641 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,641 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,641 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,641 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,641 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,641 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,642 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,642 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,642 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,642 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,642 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,642 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,642 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,642 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,642 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,642 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,643 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,643 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,643 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,643 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,643 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,643 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,643 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,643 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,643 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,644 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,644 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,645 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,645 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,646 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,646 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,647 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,647 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,648 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:17,649 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-13 00:03:17,649 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 00:03:17,678 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 00:03:17,678 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 00:03:17,678 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 00:03:17,678 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 00:03:17,678 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 00:03:17,678 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 00:03:17,679 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 00:03:17,679 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 00:03:17,679 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 00:03:17,680 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 51 transitions, 198 flow [2021-03-13 00:03:17,680 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 51 transitions, 198 flow [2021-03-13 00:03:17,680 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 51 transitions, 198 flow [2021-03-13 00:03:17,687 INFO L129 PetriNetUnfolder]: 0/59 cut-off events. [2021-03-13 00:03:17,687 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-13 00:03:17,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 59 events. 0/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 211 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-03-13 00:03:17,689 INFO L116 LiptonReduction]: Number of co-enabled transitions 1840 [2021-03-13 00:03:17,844 INFO L131 LiptonReduction]: Checked pairs total: 3956 [2021-03-13 00:03:17,844 INFO L133 LiptonReduction]: Total number of compositions: 8 [2021-03-13 00:03:17,845 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:17,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:17,846 INFO L82 PathProgramCache]: Analyzing trace with hash 448825633, now seen corresponding path program 1 times [2021-03-13 00:03:17,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:17,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408027095] [2021-03-13 00:03:17,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:17,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-13 00:03:17,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408027095] [2021-03-13 00:03:17,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:17,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-13 00:03:17,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740776068] [2021-03-13 00:03:17,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-13 00:03:17,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:17,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-13 00:03:17,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-13 00:03:17,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:17,886 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:17,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-03-13 00:03:17,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:17,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:17,935 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-13 00:03:17,935 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:17,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:17,935 INFO L82 PathProgramCache]: Analyzing trace with hash 328471456, now seen corresponding path program 1 times [2021-03-13 00:03:17,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:17,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859485165] [2021-03-13 00:03:17,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:17,977 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-13 00:03:17,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859485165] [2021-03-13 00:03:17,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:17,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-13 00:03:17,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146232641] [2021-03-13 00:03:17,978 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-13 00:03:17,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:17,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-13 00:03:17,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-13 00:03:17,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:17,980 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:17,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-03-13 00:03:17,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:17,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:18,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:18,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:18,055 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-13 00:03:18,055 INFO L428 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:18,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:18,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1431652253, now seen corresponding path program 1 times [2021-03-13 00:03:18,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:18,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863558595] [2021-03-13 00:03:18,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:18,092 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-13 00:03:18,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863558595] [2021-03-13 00:03:18,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:18,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-13 00:03:18,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845847220] [2021-03-13 00:03:18,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-13 00:03:18,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:18,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-13 00:03:18,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-13 00:03:18,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:18,094 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:18,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2021-03-13 00:03:18,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:18,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:18,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:18,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:18,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:18,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:18,243 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-13 00:03:18,243 INFO L428 AbstractCegarLoop]: === Iteration 4 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:18,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:18,243 INFO L82 PathProgramCache]: Analyzing trace with hash 788293687, now seen corresponding path program 1 times [2021-03-13 00:03:18,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:18,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207286128] [2021-03-13 00:03:18,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:18,306 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-03-13 00:03:18,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207286128] [2021-03-13 00:03:18,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:18,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-13 00:03:18,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046397862] [2021-03-13 00:03:18,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-13 00:03:18,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:18,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-13 00:03:18,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-13 00:03:18,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:18,307 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:18,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 00:03:18,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:18,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:18,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:18,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:18,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:18,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:18,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:18,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:18,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-13 00:03:18,532 INFO L428 AbstractCegarLoop]: === Iteration 5 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:18,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:18,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1499507495, now seen corresponding path program 1 times [2021-03-13 00:03:18,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:18,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952849625] [2021-03-13 00:03:18,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:18,623 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-03-13 00:03:18,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952849625] [2021-03-13 00:03:18,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:18,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-13 00:03:18,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025166563] [2021-03-13 00:03:18,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-13 00:03:18,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:18,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-13 00:03:18,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-13 00:03:18,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:18,625 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:18,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-03-13 00:03:18,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:18,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:18,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:18,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:18,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:18,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:18,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:18,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:18,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:18,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:18,944 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-13 00:03:18,944 INFO L428 AbstractCegarLoop]: === Iteration 6 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:18,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:18,945 INFO L82 PathProgramCache]: Analyzing trace with hash 142095768, now seen corresponding path program 1 times [2021-03-13 00:03:18,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:18,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575911524] [2021-03-13 00:03:18,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:19,017 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-03-13 00:03:19,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575911524] [2021-03-13 00:03:19,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:19,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-13 00:03:19,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503664249] [2021-03-13 00:03:19,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-13 00:03:19,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:19,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-13 00:03:19,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-13 00:03:19,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:19,019 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:19,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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) [2021-03-13 00:03:19,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:19,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:19,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:19,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:19,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:19,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:19,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:19,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:19,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:19,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:19,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:19,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:19,467 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-13 00:03:19,467 INFO L428 AbstractCegarLoop]: === Iteration 7 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:19,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:19,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1508853606, now seen corresponding path program 1 times [2021-03-13 00:03:19,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:19,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110466086] [2021-03-13 00:03:19,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:19,564 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-03-13 00:03:19,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110466086] [2021-03-13 00:03:19,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:19,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-13 00:03:19,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543742657] [2021-03-13 00:03:19,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-13 00:03:19,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:19,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-13 00:03:19,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-13 00:03:19,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:19,566 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:19,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2021-03-13 00:03:19,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:19,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:19,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:19,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:19,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:19,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:19,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:20,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:20,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:20,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:20,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:20,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:20,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:20,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:20,049 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-13 00:03:20,050 INFO L428 AbstractCegarLoop]: === Iteration 8 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:20,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:20,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1508285586, now seen corresponding path program 1 times [2021-03-13 00:03:20,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:20,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779596800] [2021-03-13 00:03:20,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:20,058 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:20,063 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:20,066 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-13 00:03:20,067 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-13 00:03:20,067 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-13 00:03:20,070 WARN L342 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-13 00:03:20,070 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2021-03-13 00:03:20,077 WARN L313 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,077 WARN L313 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,077 WARN L313 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,077 WARN L313 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,077 WARN L313 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,077 WARN L313 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,077 WARN L313 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,077 WARN L313 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,078 WARN L313 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,078 WARN L313 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,078 WARN L313 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,078 WARN L313 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,078 WARN L313 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,078 WARN L313 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,078 WARN L313 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,079 WARN L313 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,079 WARN L313 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,079 WARN L313 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,079 WARN L313 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,079 WARN L313 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,079 WARN L313 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,079 WARN L313 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,080 WARN L313 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,080 WARN L313 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,082 WARN L313 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,082 WARN L313 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,082 WARN L313 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,082 WARN L313 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,082 WARN L313 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,082 WARN L313 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,082 WARN L313 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,082 WARN L313 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,082 WARN L313 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,082 WARN L313 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,082 WARN L313 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,082 WARN L313 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,083 WARN L313 ript$VariableManager]: TermVariabe threadThread1of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,083 WARN L313 ript$VariableManager]: TermVariabe threadThread2of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,084 WARN L313 ript$VariableManager]: TermVariabe threadThread3of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,085 WARN L313 ript$VariableManager]: TermVariabe threadThread4of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,085 WARN L313 ript$VariableManager]: TermVariabe threadThread5of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,086 WARN L313 ript$VariableManager]: TermVariabe threadThread6of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,086 WARN L313 ript$VariableManager]: TermVariabe threadThread7of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,087 WARN L313 ript$VariableManager]: TermVariabe threadThread8of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,087 WARN L313 ript$VariableManager]: TermVariabe threadThread9of9ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,088 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-13 00:03:20,088 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-03-13 00:03:20,103 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 00:03:20,104 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 00:03:20,104 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 00:03:20,104 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 00:03:20,104 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 00:03:20,104 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 00:03:20,104 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 00:03:20,104 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 00:03:20,105 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 00:03:20,105 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 57 transitions, 231 flow [2021-03-13 00:03:20,105 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 57 transitions, 231 flow [2021-03-13 00:03:20,105 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 57 transitions, 231 flow [2021-03-13 00:03:20,111 INFO L129 PetriNetUnfolder]: 0/66 cut-off events. [2021-03-13 00:03:20,112 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-13 00:03:20,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 66 events. 0/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 232 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2021-03-13 00:03:20,113 INFO L116 LiptonReduction]: Number of co-enabled transitions 2340 Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 00:03:20,250 INFO L131 LiptonReduction]: Checked pairs total: 4622 [2021-03-13 00:03:20,250 INFO L133 LiptonReduction]: Total number of compositions: 9 [2021-03-13 00:03:20,276 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:20,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:20,277 INFO L82 PathProgramCache]: Analyzing trace with hash 263281168, now seen corresponding path program 1 times [2021-03-13 00:03:20,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:20,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644958503] [2021-03-13 00:03:20,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:20,302 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-13 00:03:20,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644958503] [2021-03-13 00:03:20,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:20,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-13 00:03:20,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373840999] [2021-03-13 00:03:20,302 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-13 00:03:20,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:20,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-13 00:03:20,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-13 00:03:20,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:20,303 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:20,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-03-13 00:03:20,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:20,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-13 00:03:20,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-13 00:03:20,340 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:20,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:20,340 INFO L82 PathProgramCache]: Analyzing trace with hash -357617874, now seen corresponding path program 1 times [2021-03-13 00:03:20,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:20,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231078929] [2021-03-13 00:03:20,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:20,343 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:20,344 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:20,347 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-13 00:03:20,347 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-13 00:03:20,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-13 00:03:20,348 WARN L342 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-13 00:03:20,348 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2021-03-13 00:03:20,358 WARN L313 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,358 WARN L313 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,358 WARN L313 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,358 WARN L313 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,358 WARN L313 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,358 WARN L313 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,358 WARN L313 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,358 WARN L313 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,359 WARN L313 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,359 WARN L313 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,359 WARN L313 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,359 WARN L313 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,359 WARN L313 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,359 WARN L313 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,359 WARN L313 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,359 WARN L313 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,359 WARN L313 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,359 WARN L313 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,359 WARN L313 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,359 WARN L313 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,360 WARN L313 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,360 WARN L313 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,360 WARN L313 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,360 WARN L313 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,360 WARN L313 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,360 WARN L313 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,360 WARN L313 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,360 WARN L313 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,360 WARN L313 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,360 WARN L313 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,360 WARN L313 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,360 WARN L313 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,361 WARN L313 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,361 WARN L313 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,361 WARN L313 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,361 WARN L313 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,361 WARN L313 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,361 WARN L313 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,361 WARN L313 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,361 WARN L313 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,362 WARN L313 ript$VariableManager]: TermVariabe threadThread1of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,363 WARN L313 ript$VariableManager]: TermVariabe threadThread2of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,363 WARN L313 ript$VariableManager]: TermVariabe threadThread3of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,364 WARN L313 ript$VariableManager]: TermVariabe threadThread4of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,364 WARN L313 ript$VariableManager]: TermVariabe threadThread5of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,365 WARN L313 ript$VariableManager]: TermVariabe threadThread6of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,365 WARN L313 ript$VariableManager]: TermVariabe threadThread7of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,366 WARN L313 ript$VariableManager]: TermVariabe threadThread8of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,367 WARN L313 ript$VariableManager]: TermVariabe threadThread9of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,367 WARN L313 ript$VariableManager]: TermVariabe threadThread10of10ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:20,368 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-13 00:03:20,368 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 00:03:20,382 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 00:03:20,382 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 00:03:20,382 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 00:03:20,383 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 00:03:20,383 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 00:03:20,383 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 00:03:20,383 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 00:03:20,383 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 00:03:20,384 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 00:03:20,384 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 63 transitions, 266 flow [2021-03-13 00:03:20,384 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 63 transitions, 266 flow [2021-03-13 00:03:20,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 63 transitions, 266 flow [2021-03-13 00:03:20,399 INFO L129 PetriNetUnfolder]: 0/73 cut-off events. [2021-03-13 00:03:20,399 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-13 00:03:20,399 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 73 events. 0/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 267 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2021-03-13 00:03:20,401 INFO L116 LiptonReduction]: Number of co-enabled transitions 2900 [2021-03-13 00:03:20,573 INFO L131 LiptonReduction]: Checked pairs total: 6246 [2021-03-13 00:03:20,573 INFO L133 LiptonReduction]: Total number of compositions: 10 [2021-03-13 00:03:20,574 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:20,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:20,574 INFO L82 PathProgramCache]: Analyzing trace with hash 216017089, now seen corresponding path program 1 times [2021-03-13 00:03:20,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:20,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584697732] [2021-03-13 00:03:20,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:20,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-13 00:03:20,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584697732] [2021-03-13 00:03:20,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:20,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-13 00:03:20,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454855286] [2021-03-13 00:03:20,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-13 00:03:20,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:20,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-13 00:03:20,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-13 00:03:20,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:20,602 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:20,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-03-13 00:03:20,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:20,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:20,643 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-13 00:03:20,643 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:20,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:20,644 INFO L82 PathProgramCache]: Analyzing trace with hash 835112415, now seen corresponding path program 1 times [2021-03-13 00:03:20,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:20,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246949070] [2021-03-13 00:03:20,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:20,685 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-13 00:03:20,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246949070] [2021-03-13 00:03:20,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:20,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-13 00:03:20,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351551896] [2021-03-13 00:03:20,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-13 00:03:20,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:20,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-13 00:03:20,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-13 00:03:20,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:20,687 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:20,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-03-13 00:03:20,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:20,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:20,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:20,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:20,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-13 00:03:20,758 INFO L428 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:20,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:20,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1991200706, now seen corresponding path program 1 times [2021-03-13 00:03:20,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:20,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809842525] [2021-03-13 00:03:20,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:20,822 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-13 00:03:20,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809842525] [2021-03-13 00:03:20,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:20,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-13 00:03:20,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260793329] [2021-03-13 00:03:20,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-13 00:03:20,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:20,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-13 00:03:20,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-13 00:03:20,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:20,823 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:20,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2021-03-13 00:03:20,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:20,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:20,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:20,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:20,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:20,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:20,951 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-13 00:03:20,951 INFO L428 AbstractCegarLoop]: === Iteration 4 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:20,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:20,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1951541632, now seen corresponding path program 1 times [2021-03-13 00:03:20,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:20,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037410469] [2021-03-13 00:03:20,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:20,999 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-03-13 00:03:20,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037410469] [2021-03-13 00:03:21,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:21,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-13 00:03:21,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155580435] [2021-03-13 00:03:21,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-13 00:03:21,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:21,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-13 00:03:21,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-13 00:03:21,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:21,000 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:21,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 00:03:21,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:21,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:21,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:21,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:21,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:21,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:21,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:21,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:21,194 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-13 00:03:21,195 INFO L428 AbstractCegarLoop]: === Iteration 5 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:21,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:21,195 INFO L82 PathProgramCache]: Analyzing trace with hash 2136727075, now seen corresponding path program 1 times [2021-03-13 00:03:21,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:21,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063718608] [2021-03-13 00:03:21,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:21,256 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-03-13 00:03:21,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063718608] [2021-03-13 00:03:21,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:21,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-13 00:03:21,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946168430] [2021-03-13 00:03:21,257 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-13 00:03:21,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:21,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-13 00:03:21,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-13 00:03:21,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:21,258 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:21,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-03-13 00:03:21,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:21,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:21,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:21,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:21,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:21,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:21,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:21,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:21,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:21,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:21,546 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-13 00:03:21,546 INFO L428 AbstractCegarLoop]: === Iteration 6 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:21,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:21,547 INFO L82 PathProgramCache]: Analyzing trace with hash -173715935, now seen corresponding path program 1 times [2021-03-13 00:03:21,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:21,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409568789] [2021-03-13 00:03:21,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:21,614 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-03-13 00:03:21,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409568789] [2021-03-13 00:03:21,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:21,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-13 00:03:21,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830704458] [2021-03-13 00:03:21,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-13 00:03:21,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:21,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-13 00:03:21,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-13 00:03:21,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:21,615 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:21,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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) [2021-03-13 00:03:21,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:21,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:21,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:21,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:21,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:21,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:22,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:22,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:22,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:22,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:22,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:22,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:22,060 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-13 00:03:22,060 INFO L428 AbstractCegarLoop]: === Iteration 7 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:22,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:22,060 INFO L82 PathProgramCache]: Analyzing trace with hash 841229540, now seen corresponding path program 1 times [2021-03-13 00:03:22,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:22,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103028031] [2021-03-13 00:03:22,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:22,136 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-03-13 00:03:22,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103028031] [2021-03-13 00:03:22,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:22,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-13 00:03:22,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911977279] [2021-03-13 00:03:22,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-13 00:03:22,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:22,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-13 00:03:22,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-13 00:03:22,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:22,138 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:22,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2021-03-13 00:03:22,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:22,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:22,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:22,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:22,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:22,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:22,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:22,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:22,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:22,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:22,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:22,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:22,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:22,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:03:22,682 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-13 00:03:22,682 INFO L428 AbstractCegarLoop]: === Iteration 8 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:22,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:22,682 INFO L82 PathProgramCache]: Analyzing trace with hash -38708990, now seen corresponding path program 1 times [2021-03-13 00:03:22,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:22,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678413837] [2021-03-13 00:03:22,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:22,771 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-03-13 00:03:22,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678413837] [2021-03-13 00:03:22,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:22,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-13 00:03:22,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495350519] [2021-03-13 00:03:22,771 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-13 00:03:22,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:22,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-13 00:03:22,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-13 00:03:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:22,772 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:22,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 00:03:22,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:22,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:22,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:22,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:22,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:22,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:22,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:03:22,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:23,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:23,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:23,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:23,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:23,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:23,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:23,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:03:23,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:03:23,595 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-13 00:03:23,595 INFO L428 AbstractCegarLoop]: === Iteration 9 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:23,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:23,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1917965157, now seen corresponding path program 1 times [2021-03-13 00:03:23,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:23,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468958132] [2021-03-13 00:03:23,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:23,699 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-03-13 00:03:23,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468958132] [2021-03-13 00:03:23,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:23,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-13 00:03:23,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512193166] [2021-03-13 00:03:23,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-13 00:03:23,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:23,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-13 00:03:23,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-03-13 00:03:23,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:23,701 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:23,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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) [2021-03-13 00:03:23,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:23,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:23,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:23,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:23,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:23,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:23,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:03:23,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:03:23,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:24,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:24,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:24,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:24,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:24,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:24,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:24,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:03:24,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:03:24,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:03:24,685 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-13 00:03:24,685 INFO L428 AbstractCegarLoop]: === Iteration 10 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:24,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:24,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1918235959, now seen corresponding path program 1 times [2021-03-13 00:03:24,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:24,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271045319] [2021-03-13 00:03:24,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:24,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:24,689 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:24,690 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:24,700 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-13 00:03:24,700 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-13 00:03:24,700 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-13 00:03:24,702 WARN L342 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-13 00:03:24,702 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2021-03-13 00:03:24,710 WARN L313 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,710 WARN L313 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,710 WARN L313 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,710 WARN L313 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,710 WARN L313 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,710 WARN L313 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,710 WARN L313 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,710 WARN L313 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,711 WARN L313 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,711 WARN L313 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,711 WARN L313 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,711 WARN L313 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,711 WARN L313 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,711 WARN L313 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,711 WARN L313 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,711 WARN L313 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,711 WARN L313 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,711 WARN L313 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,711 WARN L313 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,711 WARN L313 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,711 WARN L313 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,712 WARN L313 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,712 WARN L313 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,712 WARN L313 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,712 WARN L313 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,712 WARN L313 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,712 WARN L313 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,712 WARN L313 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,712 WARN L313 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,712 WARN L313 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,712 WARN L313 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,712 WARN L313 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,712 WARN L313 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,712 WARN L313 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,712 WARN L313 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,713 WARN L313 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,713 WARN L313 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,713 WARN L313 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,713 WARN L313 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,713 WARN L313 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,713 WARN L313 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,713 WARN L313 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,713 WARN L313 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,713 WARN L313 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,713 WARN L313 ript$VariableManager]: TermVariabe threadThread1of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,714 WARN L313 ript$VariableManager]: TermVariabe threadThread2of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,715 WARN L313 ript$VariableManager]: TermVariabe threadThread3of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,715 WARN L313 ript$VariableManager]: TermVariabe threadThread4of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,716 WARN L313 ript$VariableManager]: TermVariabe threadThread5of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,716 WARN L313 ript$VariableManager]: TermVariabe threadThread6of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,717 WARN L313 ript$VariableManager]: TermVariabe threadThread7of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,717 WARN L313 ript$VariableManager]: TermVariabe threadThread8of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,718 WARN L313 ript$VariableManager]: TermVariabe threadThread9of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,718 WARN L313 ript$VariableManager]: TermVariabe threadThread10of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,719 WARN L313 ript$VariableManager]: TermVariabe threadThread11of11ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:24,719 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-13 00:03:24,720 INFO L253 AbstractCegarLoop]: Starting to check reachability of 13 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-03-13 00:03:24,732 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 00:03:24,732 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 00:03:24,732 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 00:03:24,733 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 00:03:24,733 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 00:03:24,733 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 00:03:24,733 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 00:03:24,733 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 00:03:24,733 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 00:03:24,734 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 69 transitions, 303 flow [2021-03-13 00:03:24,734 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 69 transitions, 303 flow [2021-03-13 00:03:24,734 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 69 transitions, 303 flow Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 00:03:24,742 INFO L129 PetriNetUnfolder]: 0/80 cut-off events. [2021-03-13 00:03:24,743 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-13 00:03:24,747 INFO L84 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 80 events. 0/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 290 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2021-03-13 00:03:24,749 INFO L116 LiptonReduction]: Number of co-enabled transitions 3520 [2021-03-13 00:03:24,904 INFO L131 LiptonReduction]: Checked pairs total: 7310 [2021-03-13 00:03:24,905 INFO L133 LiptonReduction]: Total number of compositions: 11 [2021-03-13 00:03:24,906 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:24,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:24,906 INFO L82 PathProgramCache]: Analyzing trace with hash 498178027, now seen corresponding path program 1 times [2021-03-13 00:03:24,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:24,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120222156] [2021-03-13 00:03:24,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:24,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 00:03:24,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120222156] [2021-03-13 00:03:24,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:24,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-13 00:03:24,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594817711] [2021-03-13 00:03:24,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-13 00:03:24,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:24,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-13 00:03:24,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-13 00:03:24,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:24,926 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:24,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-03-13 00:03:24,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:24,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:24,960 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-13 00:03:24,960 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:24,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:24,960 INFO L82 PathProgramCache]: Analyzing trace with hash 2111027619, now seen corresponding path program 1 times [2021-03-13 00:03:24,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:24,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384364630] [2021-03-13 00:03:24,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:24,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-13 00:03:24,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384364630] [2021-03-13 00:03:24,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:24,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-13 00:03:24,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477766780] [2021-03-13 00:03:24,992 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-13 00:03:24,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:24,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-13 00:03:24,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-13 00:03:24,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:24,993 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:24,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-03-13 00:03:24,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:24,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:25,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:25,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:25,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-13 00:03:25,059 INFO L428 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:25,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:25,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1580859926, now seen corresponding path program 1 times [2021-03-13 00:03:25,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:25,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753062665] [2021-03-13 00:03:25,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:25,098 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-13 00:03:25,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753062665] [2021-03-13 00:03:25,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:25,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-13 00:03:25,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547306640] [2021-03-13 00:03:25,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-13 00:03:25,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:25,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-13 00:03:25,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-13 00:03:25,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:25,100 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:25,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-03-13 00:03:25,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:25,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:25,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:25,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:25,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:25,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:25,212 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-13 00:03:25,212 INFO L428 AbstractCegarLoop]: === Iteration 4 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:25,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:25,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1080157342, now seen corresponding path program 1 times [2021-03-13 00:03:25,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:25,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735008694] [2021-03-13 00:03:25,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:25,251 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-13 00:03:25,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735008694] [2021-03-13 00:03:25,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:25,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-13 00:03:25,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486735229] [2021-03-13 00:03:25,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-13 00:03:25,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:25,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-13 00:03:25,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-13 00:03:25,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:25,252 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:25,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 00:03:25,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:25,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:25,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:25,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:25,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:25,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:25,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:25,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:25,474 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-13 00:03:25,474 INFO L428 AbstractCegarLoop]: === Iteration 5 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:25,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:25,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1070886455, now seen corresponding path program 1 times [2021-03-13 00:03:25,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:25,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943075190] [2021-03-13 00:03:25,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:25,546 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-03-13 00:03:25,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943075190] [2021-03-13 00:03:25,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:25,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-13 00:03:25,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977807844] [2021-03-13 00:03:25,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-13 00:03:25,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:25,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-13 00:03:25,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-13 00:03:25,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:25,547 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:25,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 00:03:25,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:25,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:25,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:25,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:25,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:25,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:25,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:25,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:25,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:25,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:25,799 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-13 00:03:25,799 INFO L428 AbstractCegarLoop]: === Iteration 6 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:25,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:25,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1035723434, now seen corresponding path program 1 times [2021-03-13 00:03:25,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:25,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63815867] [2021-03-13 00:03:25,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:25,863 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-03-13 00:03:25,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63815867] [2021-03-13 00:03:25,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:25,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-13 00:03:25,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224602981] [2021-03-13 00:03:25,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-13 00:03:25,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:25,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-13 00:03:25,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-13 00:03:25,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:25,864 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:25,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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) [2021-03-13 00:03:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:26,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:26,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:26,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:26,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:26,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:26,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:26,202 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-13 00:03:26,202 INFO L428 AbstractCegarLoop]: === Iteration 7 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:26,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:26,202 INFO L82 PathProgramCache]: Analyzing trace with hash -189838371, now seen corresponding path program 1 times [2021-03-13 00:03:26,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:26,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771934064] [2021-03-13 00:03:26,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:26,279 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-03-13 00:03:26,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771934064] [2021-03-13 00:03:26,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:26,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-13 00:03:26,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192253856] [2021-03-13 00:03:26,281 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-13 00:03:26,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:26,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-13 00:03:26,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-13 00:03:26,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:26,281 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:26,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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) [2021-03-13 00:03:26,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:26,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:26,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:26,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:26,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:26,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:26,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:26,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:26,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:26,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:26,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:26,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:26,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:26,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:26,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-13 00:03:26,628 INFO L428 AbstractCegarLoop]: === Iteration 8 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:26,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:26,628 INFO L82 PathProgramCache]: Analyzing trace with hash -2045983934, now seen corresponding path program 1 times [2021-03-13 00:03:26,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:26,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145083503] [2021-03-13 00:03:26,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:26,631 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:26,632 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:26,634 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-13 00:03:26,634 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-13 00:03:26,635 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-13 00:03:26,637 WARN L342 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-13 00:03:26,638 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2021-03-13 00:03:26,647 WARN L313 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,648 WARN L313 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,648 WARN L313 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,648 WARN L313 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,648 WARN L313 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,648 WARN L313 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,648 WARN L313 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,648 WARN L313 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,648 WARN L313 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,648 WARN L313 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,648 WARN L313 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,648 WARN L313 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,648 WARN L313 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,648 WARN L313 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,648 WARN L313 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,648 WARN L313 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,649 WARN L313 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,649 WARN L313 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,649 WARN L313 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,649 WARN L313 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,649 WARN L313 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,649 WARN L313 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,649 WARN L313 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,649 WARN L313 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,649 WARN L313 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,649 WARN L313 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,649 WARN L313 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,649 WARN L313 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,649 WARN L313 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,649 WARN L313 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,649 WARN L313 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,650 WARN L313 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,650 WARN L313 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,650 WARN L313 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,650 WARN L313 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,650 WARN L313 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,650 WARN L313 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,650 WARN L313 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,650 WARN L313 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,650 WARN L313 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,650 WARN L313 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,650 WARN L313 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,650 WARN L313 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,650 WARN L313 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,650 WARN L313 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,650 WARN L313 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,651 WARN L313 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,651 WARN L313 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,651 WARN L313 ript$VariableManager]: TermVariabe threadThread1of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,652 WARN L313 ript$VariableManager]: TermVariabe threadThread2of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,652 WARN L313 ript$VariableManager]: TermVariabe threadThread3of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,653 WARN L313 ript$VariableManager]: TermVariabe threadThread4of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,654 WARN L313 ript$VariableManager]: TermVariabe threadThread5of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,654 WARN L313 ript$VariableManager]: TermVariabe threadThread6of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,655 WARN L313 ript$VariableManager]: TermVariabe threadThread7of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,655 WARN L313 ript$VariableManager]: TermVariabe threadThread8of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,656 WARN L313 ript$VariableManager]: TermVariabe threadThread9of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,656 WARN L313 ript$VariableManager]: TermVariabe threadThread10of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,657 WARN L313 ript$VariableManager]: TermVariabe threadThread11of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,658 WARN L313 ript$VariableManager]: TermVariabe threadThread12of12ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,658 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-13 00:03:26,658 INFO L253 AbstractCegarLoop]: Starting to check reachability of 14 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-03-13 00:03:26,671 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 00:03:26,671 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 00:03:26,671 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 00:03:26,671 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 00:03:26,671 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 00:03:26,671 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 00:03:26,671 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 00:03:26,671 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 00:03:26,672 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 00:03:26,672 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 75 transitions, 342 flow [2021-03-13 00:03:26,673 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 75 transitions, 342 flow [2021-03-13 00:03:26,673 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 75 transitions, 342 flow [2021-03-13 00:03:26,684 INFO L129 PetriNetUnfolder]: 0/87 cut-off events. [2021-03-13 00:03:26,684 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-13 00:03:26,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 87 events. 0/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 330 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2021-03-13 00:03:26,687 INFO L116 LiptonReduction]: Number of co-enabled transitions 4200 Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 00:03:26,938 INFO L131 LiptonReduction]: Checked pairs total: 9056 [2021-03-13 00:03:26,938 INFO L133 LiptonReduction]: Total number of compositions: 12 [2021-03-13 00:03:26,945 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:26,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:26,946 INFO L82 PathProgramCache]: Analyzing trace with hash 899466111, now seen corresponding path program 1 times [2021-03-13 00:03:26,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:26,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811432722] [2021-03-13 00:03:26,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:26,948 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:26,949 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:26,950 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-13 00:03:26,951 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-13 00:03:26,951 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-13 00:03:26,951 WARN L342 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-13 00:03:26,951 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2021-03-13 00:03:26,964 WARN L313 ript$VariableManager]: TermVariabe threadThread4of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,964 WARN L313 ript$VariableManager]: TermVariabe threadThread4of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,964 WARN L313 ript$VariableManager]: TermVariabe threadThread4of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,964 WARN L313 ript$VariableManager]: TermVariabe threadThread4of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,964 WARN L313 ript$VariableManager]: TermVariabe threadThread2of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,964 WARN L313 ript$VariableManager]: TermVariabe threadThread2of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,964 WARN L313 ript$VariableManager]: TermVariabe threadThread2of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,964 WARN L313 ript$VariableManager]: TermVariabe threadThread2of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,965 WARN L313 ript$VariableManager]: TermVariabe threadThread6of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,965 WARN L313 ript$VariableManager]: TermVariabe threadThread6of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,965 WARN L313 ript$VariableManager]: TermVariabe threadThread6of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,965 WARN L313 ript$VariableManager]: TermVariabe threadThread6of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,965 WARN L313 ript$VariableManager]: TermVariabe threadThread13of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,965 WARN L313 ript$VariableManager]: TermVariabe threadThread13of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,965 WARN L313 ript$VariableManager]: TermVariabe threadThread13of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,965 WARN L313 ript$VariableManager]: TermVariabe threadThread13of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,965 WARN L313 ript$VariableManager]: TermVariabe threadThread3of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,965 WARN L313 ript$VariableManager]: TermVariabe threadThread3of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,965 WARN L313 ript$VariableManager]: TermVariabe threadThread3of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,965 WARN L313 ript$VariableManager]: TermVariabe threadThread3of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,965 WARN L313 ript$VariableManager]: TermVariabe threadThread7of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,965 WARN L313 ript$VariableManager]: TermVariabe threadThread7of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,966 WARN L313 ript$VariableManager]: TermVariabe threadThread7of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,966 WARN L313 ript$VariableManager]: TermVariabe threadThread7of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,966 WARN L313 ript$VariableManager]: TermVariabe threadThread8of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,966 WARN L313 ript$VariableManager]: TermVariabe threadThread8of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,966 WARN L313 ript$VariableManager]: TermVariabe threadThread8of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,966 WARN L313 ript$VariableManager]: TermVariabe threadThread8of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,966 WARN L313 ript$VariableManager]: TermVariabe threadThread9of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,966 WARN L313 ript$VariableManager]: TermVariabe threadThread9of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,966 WARN L313 ript$VariableManager]: TermVariabe threadThread9of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,966 WARN L313 ript$VariableManager]: TermVariabe threadThread9of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,966 WARN L313 ript$VariableManager]: TermVariabe threadThread1of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,966 WARN L313 ript$VariableManager]: TermVariabe threadThread1of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,966 WARN L313 ript$VariableManager]: TermVariabe threadThread1of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,966 WARN L313 ript$VariableManager]: TermVariabe threadThread1of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,967 WARN L313 ript$VariableManager]: TermVariabe threadThread10of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,967 WARN L313 ript$VariableManager]: TermVariabe threadThread10of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,967 WARN L313 ript$VariableManager]: TermVariabe threadThread10of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,967 WARN L313 ript$VariableManager]: TermVariabe threadThread10of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,967 WARN L313 ript$VariableManager]: TermVariabe threadThread11of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,967 WARN L313 ript$VariableManager]: TermVariabe threadThread11of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,967 WARN L313 ript$VariableManager]: TermVariabe threadThread11of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,967 WARN L313 ript$VariableManager]: TermVariabe threadThread11of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,967 WARN L313 ript$VariableManager]: TermVariabe threadThread12of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,967 WARN L313 ript$VariableManager]: TermVariabe threadThread12of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,967 WARN L313 ript$VariableManager]: TermVariabe threadThread12of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,967 WARN L313 ript$VariableManager]: TermVariabe threadThread12of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,968 WARN L313 ript$VariableManager]: TermVariabe threadThread5of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,968 WARN L313 ript$VariableManager]: TermVariabe threadThread5of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,968 WARN L313 ript$VariableManager]: TermVariabe threadThread5of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,968 WARN L313 ript$VariableManager]: TermVariabe threadThread5of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,968 WARN L313 ript$VariableManager]: TermVariabe threadThread1of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,969 WARN L313 ript$VariableManager]: TermVariabe threadThread2of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,970 WARN L313 ript$VariableManager]: TermVariabe threadThread3of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,970 WARN L313 ript$VariableManager]: TermVariabe threadThread4of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,971 WARN L313 ript$VariableManager]: TermVariabe threadThread5of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,971 WARN L313 ript$VariableManager]: TermVariabe threadThread6of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,972 WARN L313 ript$VariableManager]: TermVariabe threadThread7of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,972 WARN L313 ript$VariableManager]: TermVariabe threadThread8of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,973 WARN L313 ript$VariableManager]: TermVariabe threadThread9of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,973 WARN L313 ript$VariableManager]: TermVariabe threadThread10of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,974 WARN L313 ript$VariableManager]: TermVariabe threadThread11of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,974 WARN L313 ript$VariableManager]: TermVariabe threadThread12of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,975 WARN L313 ript$VariableManager]: TermVariabe threadThread13of13ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:26,976 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-13 00:03:26,976 INFO L253 AbstractCegarLoop]: Starting to check reachability of 15 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-03-13 00:03:26,991 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 00:03:26,991 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 00:03:26,991 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 00:03:26,991 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 00:03:26,991 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 00:03:26,992 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 00:03:26,992 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 00:03:26,992 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 00:03:26,992 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 00:03:26,993 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 81 transitions, 383 flow [2021-03-13 00:03:26,993 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 81 transitions, 383 flow [2021-03-13 00:03:26,993 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 81 transitions, 383 flow [2021-03-13 00:03:27,001 INFO L129 PetriNetUnfolder]: 0/94 cut-off events. [2021-03-13 00:03:27,001 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-13 00:03:27,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 94 events. 0/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 359 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 00:03:27,011 INFO L116 LiptonReduction]: Number of co-enabled transitions 4940 [2021-03-13 00:03:27,225 INFO L131 LiptonReduction]: Checked pairs total: 10762 [2021-03-13 00:03:27,225 INFO L133 LiptonReduction]: Total number of compositions: 13 [2021-03-13 00:03:27,226 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:27,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:27,226 INFO L82 PathProgramCache]: Analyzing trace with hash -727493320, now seen corresponding path program 1 times [2021-03-13 00:03:27,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:27,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722188617] [2021-03-13 00:03:27,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:27,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:27,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-13 00:03:27,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722188617] [2021-03-13 00:03:27,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:27,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-13 00:03:27,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036019808] [2021-03-13 00:03:27,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-13 00:03:27,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:27,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-13 00:03:27,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-13 00:03:27,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:27,252 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:27,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-03-13 00:03:27,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:27,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:27,293 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-03-13 00:03:27,293 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:27,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:27,293 INFO L82 PathProgramCache]: Analyzing trace with hash 98883366, now seen corresponding path program 1 times [2021-03-13 00:03:27,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:27,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040980819] [2021-03-13 00:03:27,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:27,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-13 00:03:27,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040980819] [2021-03-13 00:03:27,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:27,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-13 00:03:27,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550539266] [2021-03-13 00:03:27,317 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-13 00:03:27,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:27,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-13 00:03:27,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-13 00:03:27,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:27,317 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:27,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-03-13 00:03:27,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:27,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:27,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:27,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:27,374 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-03-13 00:03:27,374 INFO L428 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:27,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:27,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1029358122, now seen corresponding path program 1 times [2021-03-13 00:03:27,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:27,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005550414] [2021-03-13 00:03:27,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:27,407 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-13 00:03:27,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005550414] [2021-03-13 00:03:27,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:27,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-13 00:03:27,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050051669] [2021-03-13 00:03:27,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-13 00:03:27,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:27,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-13 00:03:27,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-13 00:03:27,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:27,409 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:27,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2021-03-13 00:03:27,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:27,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:27,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:27,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:27,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:27,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:27,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-03-13 00:03:27,528 INFO L428 AbstractCegarLoop]: === Iteration 4 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:27,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:27,529 INFO L82 PathProgramCache]: Analyzing trace with hash 357235554, now seen corresponding path program 1 times [2021-03-13 00:03:27,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:27,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388197030] [2021-03-13 00:03:27,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:27,571 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-03-13 00:03:27,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388197030] [2021-03-13 00:03:27,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:27,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-13 00:03:27,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126946421] [2021-03-13 00:03:27,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-13 00:03:27,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:27,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-13 00:03:27,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-13 00:03:27,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:27,572 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:27,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 00:03:27,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:27,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:27,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:27,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:27,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:27,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:27,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:27,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:27,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-03-13 00:03:27,758 INFO L428 AbstractCegarLoop]: === Iteration 5 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:27,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:27,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1176617678, now seen corresponding path program 1 times [2021-03-13 00:03:27,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:27,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914718942] [2021-03-13 00:03:27,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:27,816 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-03-13 00:03:27,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914718942] [2021-03-13 00:03:27,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:27,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-13 00:03:27,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496986017] [2021-03-13 00:03:27,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-13 00:03:27,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:27,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-13 00:03:27,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-13 00:03:27,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:27,819 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:27,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-03-13 00:03:27,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:27,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:27,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:27,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:27,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:28,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:28,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:28,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:28,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:28,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:28,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-03-13 00:03:28,106 INFO L428 AbstractCegarLoop]: === Iteration 6 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:28,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:28,107 INFO L82 PathProgramCache]: Analyzing trace with hash -385114077, now seen corresponding path program 1 times [2021-03-13 00:03:28,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:28,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252820173] [2021-03-13 00:03:28,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:28,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:28,170 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-03-13 00:03:28,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252820173] [2021-03-13 00:03:28,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:28,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-13 00:03:28,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138053214] [2021-03-13 00:03:28,171 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-13 00:03:28,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:28,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-13 00:03:28,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-13 00:03:28,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:28,174 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:28,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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) [2021-03-13 00:03:28,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:28,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:28,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:28,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:28,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:28,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:28,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:28,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:28,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:28,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:28,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:28,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:28,673 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-03-13 00:03:28,673 INFO L428 AbstractCegarLoop]: === Iteration 7 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:28,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:28,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1392888367, now seen corresponding path program 1 times [2021-03-13 00:03:28,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:28,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915511053] [2021-03-13 00:03:28,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:28,699 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-03-13 00:03:28,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915511053] [2021-03-13 00:03:28,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:28,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-13 00:03:28,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818040046] [2021-03-13 00:03:28,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-13 00:03:28,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:28,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-13 00:03:28,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-13 00:03:28,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:28,701 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:28,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-03-13 00:03:28,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:28,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:28,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:28,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:28,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:28,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:28,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:28,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:28,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:28,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:28,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:28,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:28,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:28,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:28,921 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-03-13 00:03:28,921 INFO L428 AbstractCegarLoop]: === Iteration 8 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:28,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:28,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1817933722, now seen corresponding path program 1 times [2021-03-13 00:03:28,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:28,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152940376] [2021-03-13 00:03:28,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:28,956 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-03-13 00:03:28,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152940376] [2021-03-13 00:03:28,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:28,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-13 00:03:28,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118695508] [2021-03-13 00:03:28,957 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-13 00:03:28,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:28,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-13 00:03:28,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-13 00:03:28,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:28,957 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:28,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-03-13 00:03:28,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:28,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:28,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:28,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:28,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:28,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:28,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:28,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:29,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:29,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:29,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:29,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:29,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:29,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:29,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:29,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:29,317 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-03-13 00:03:29,317 INFO L428 AbstractCegarLoop]: === Iteration 9 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:29,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:29,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1653313362, now seen corresponding path program 1 times [2021-03-13 00:03:29,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:29,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207171840] [2021-03-13 00:03:29,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:29,354 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-03-13 00:03:29,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207171840] [2021-03-13 00:03:29,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:29,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-13 00:03:29,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625877449] [2021-03-13 00:03:29,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-13 00:03:29,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:29,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-13 00:03:29,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-13 00:03:29,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:29,355 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:29,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-03-13 00:03:29,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:29,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:29,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:29,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:29,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:29,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:29,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:29,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:29,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:29,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:29,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:29,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:29,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:29,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:29,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:29,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:29,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:29,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:29,938 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-03-13 00:03:29,939 INFO L428 AbstractCegarLoop]: === Iteration 10 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:29,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:29,939 INFO L82 PathProgramCache]: Analyzing trace with hash -508493337, now seen corresponding path program 1 times [2021-03-13 00:03:29,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:29,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894472460] [2021-03-13 00:03:29,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:29,983 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-03-13 00:03:29,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894472460] [2021-03-13 00:03:29,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:29,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-13 00:03:29,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047786520] [2021-03-13 00:03:29,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-13 00:03:29,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:29,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-13 00:03:29,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-13 00:03:29,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:29,984 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:29,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 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) [2021-03-13 00:03:29,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:29,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:29,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:29,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:29,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:29,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:29,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:29,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:29,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:29,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:30,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:30,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:30,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:30,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:30,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:30,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:30,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:30,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:30,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:30,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:30,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-03-13 00:03:30,865 INFO L428 AbstractCegarLoop]: === Iteration 11 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:30,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:30,866 INFO L82 PathProgramCache]: Analyzing trace with hash 419535763, now seen corresponding path program 1 times [2021-03-13 00:03:30,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:30,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489877470] [2021-03-13 00:03:30,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:30,912 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-03-13 00:03:30,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489877470] [2021-03-13 00:03:30,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:30,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-13 00:03:30,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755381021] [2021-03-13 00:03:30,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-13 00:03:30,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:30,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-13 00:03:30,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-13 00:03:30,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:30,913 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:30,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 00:03:30,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:30,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:30,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:30,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:30,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:30,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:30,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:30,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:30,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:30,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:30,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:32,346 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-03-13 00:03:32,347 INFO L428 AbstractCegarLoop]: === Iteration 12 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:32,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:32,347 INFO L82 PathProgramCache]: Analyzing trace with hash 768831496, now seen corresponding path program 1 times [2021-03-13 00:03:32,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:32,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954732582] [2021-03-13 00:03:32,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:32,414 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-03-13 00:03:32,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954732582] [2021-03-13 00:03:32,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:32,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-13 00:03:32,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115422337] [2021-03-13 00:03:32,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-13 00:03:32,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:32,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-13 00:03:32,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-13 00:03:32,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:32,415 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:32,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 9 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 00:03:32,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:32,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:32,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:32,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:32,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:32,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:32,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:32,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:32,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:32,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:32,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:32,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:34,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:34,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:34,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:34,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:34,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:34,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:34,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:34,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:34,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:34,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:34,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:34,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:34,632 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-03-13 00:03:34,632 INFO L428 AbstractCegarLoop]: === Iteration 13 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:34,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:34,632 INFO L82 PathProgramCache]: Analyzing trace with hash 770590871, now seen corresponding path program 1 times [2021-03-13 00:03:34,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:34,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285199192] [2021-03-13 00:03:34,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:34,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:34,635 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:34,637 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:34,640 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-13 00:03:34,640 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-13 00:03:34,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-03-13 00:03:34,642 WARN L342 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-13 00:03:34,642 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2021-03-13 00:03:34,654 WARN L313 ript$VariableManager]: TermVariabe threadThread2of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,654 WARN L313 ript$VariableManager]: TermVariabe threadThread2of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,654 WARN L313 ript$VariableManager]: TermVariabe threadThread2of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,654 WARN L313 ript$VariableManager]: TermVariabe threadThread2of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,655 WARN L313 ript$VariableManager]: TermVariabe threadThread13of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,655 WARN L313 ript$VariableManager]: TermVariabe threadThread13of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,655 WARN L313 ript$VariableManager]: TermVariabe threadThread13of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,655 WARN L313 ript$VariableManager]: TermVariabe threadThread13of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,655 WARN L313 ript$VariableManager]: TermVariabe threadThread1of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,655 WARN L313 ript$VariableManager]: TermVariabe threadThread1of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,655 WARN L313 ript$VariableManager]: TermVariabe threadThread1of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,655 WARN L313 ript$VariableManager]: TermVariabe threadThread1of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,655 WARN L313 ript$VariableManager]: TermVariabe threadThread5of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,655 WARN L313 ript$VariableManager]: TermVariabe threadThread5of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,655 WARN L313 ript$VariableManager]: TermVariabe threadThread5of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,655 WARN L313 ript$VariableManager]: TermVariabe threadThread5of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,655 WARN L313 ript$VariableManager]: TermVariabe threadThread12of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,655 WARN L313 ript$VariableManager]: TermVariabe threadThread12of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,656 WARN L313 ript$VariableManager]: TermVariabe threadThread12of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,656 WARN L313 ript$VariableManager]: TermVariabe threadThread12of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,656 WARN L313 ript$VariableManager]: TermVariabe threadThread6of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,656 WARN L313 ript$VariableManager]: TermVariabe threadThread6of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,656 WARN L313 ript$VariableManager]: TermVariabe threadThread6of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,656 WARN L313 ript$VariableManager]: TermVariabe threadThread6of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,656 WARN L313 ript$VariableManager]: TermVariabe threadThread8of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,656 WARN L313 ript$VariableManager]: TermVariabe threadThread8of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,656 WARN L313 ript$VariableManager]: TermVariabe threadThread8of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,656 WARN L313 ript$VariableManager]: TermVariabe threadThread8of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,656 WARN L313 ript$VariableManager]: TermVariabe threadThread7of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,656 WARN L313 ript$VariableManager]: TermVariabe threadThread7of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,656 WARN L313 ript$VariableManager]: TermVariabe threadThread7of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,656 WARN L313 ript$VariableManager]: TermVariabe threadThread7of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,657 WARN L313 ript$VariableManager]: TermVariabe threadThread14of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,657 WARN L313 ript$VariableManager]: TermVariabe threadThread14of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,657 WARN L313 ript$VariableManager]: TermVariabe threadThread14of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,657 WARN L313 ript$VariableManager]: TermVariabe threadThread14of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,657 WARN L313 ript$VariableManager]: TermVariabe threadThread9of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,657 WARN L313 ript$VariableManager]: TermVariabe threadThread9of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,657 WARN L313 ript$VariableManager]: TermVariabe threadThread9of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,657 WARN L313 ript$VariableManager]: TermVariabe threadThread9of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,657 WARN L313 ript$VariableManager]: TermVariabe threadThread4of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,657 WARN L313 ript$VariableManager]: TermVariabe threadThread4of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,657 WARN L313 ript$VariableManager]: TermVariabe threadThread4of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,657 WARN L313 ript$VariableManager]: TermVariabe threadThread4of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,657 WARN L313 ript$VariableManager]: TermVariabe threadThread11of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,657 WARN L313 ript$VariableManager]: TermVariabe threadThread11of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,658 WARN L313 ript$VariableManager]: TermVariabe threadThread11of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,658 WARN L313 ript$VariableManager]: TermVariabe threadThread11of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,658 WARN L313 ript$VariableManager]: TermVariabe threadThread3of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,658 WARN L313 ript$VariableManager]: TermVariabe threadThread3of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,658 WARN L313 ript$VariableManager]: TermVariabe threadThread3of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,658 WARN L313 ript$VariableManager]: TermVariabe threadThread3of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,658 WARN L313 ript$VariableManager]: TermVariabe threadThread10of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,658 WARN L313 ript$VariableManager]: TermVariabe threadThread10of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,658 WARN L313 ript$VariableManager]: TermVariabe threadThread10of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,658 WARN L313 ript$VariableManager]: TermVariabe threadThread10of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,658 WARN L313 ript$VariableManager]: TermVariabe threadThread1of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,659 WARN L313 ript$VariableManager]: TermVariabe threadThread2of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,660 WARN L313 ript$VariableManager]: TermVariabe threadThread3of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,660 WARN L313 ript$VariableManager]: TermVariabe threadThread4of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,661 WARN L313 ript$VariableManager]: TermVariabe threadThread5of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,661 WARN L313 ript$VariableManager]: TermVariabe threadThread6of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,662 WARN L313 ript$VariableManager]: TermVariabe threadThread7of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,662 WARN L313 ript$VariableManager]: TermVariabe threadThread8of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,663 WARN L313 ript$VariableManager]: TermVariabe threadThread9of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,663 WARN L313 ript$VariableManager]: TermVariabe threadThread10of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,664 WARN L313 ript$VariableManager]: TermVariabe threadThread11of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,664 WARN L313 ript$VariableManager]: TermVariabe threadThread12of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,665 WARN L313 ript$VariableManager]: TermVariabe threadThread13of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,665 WARN L313 ript$VariableManager]: TermVariabe threadThread14of14ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:34,666 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-13 00:03:34,666 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-03-13 00:03:34,716 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 00:03:34,716 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 00:03:34,716 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 00:03:34,716 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 00:03:34,716 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 00:03:34,716 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 00:03:34,716 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 00:03:34,717 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 00:03:34,717 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 00:03:34,718 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 87 transitions, 426 flow [2021-03-13 00:03:34,718 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 87 transitions, 426 flow [2021-03-13 00:03:34,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 87 transitions, 426 flow [2021-03-13 00:03:34,735 INFO L129 PetriNetUnfolder]: 0/101 cut-off events. [2021-03-13 00:03:34,735 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-13 00:03:34,735 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 101 events. 0/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 395 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 0. Up to 15 conditions per place. [2021-03-13 00:03:34,739 INFO L116 LiptonReduction]: Number of co-enabled transitions 5740 Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 00:03:34,935 INFO L131 LiptonReduction]: Checked pairs total: 12436 [2021-03-13 00:03:34,935 INFO L133 LiptonReduction]: Total number of compositions: 14 [2021-03-13 00:03:34,936 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:03:34,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:34,936 INFO L82 PathProgramCache]: Analyzing trace with hash -2059527201, now seen corresponding path program 1 times [2021-03-13 00:03:34,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:34,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287116327] [2021-03-13 00:03:34,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:34,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-13 00:03:34,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287116327] [2021-03-13 00:03:34,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:34,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-13 00:03:34,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23804959] [2021-03-13 00:03:34,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-13 00:03:34,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:34,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-13 00:03:34,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-13 00:03:34,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:34,952 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:34,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-03-13 00:03:34,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:34,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:34,984 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-03-13 00:03:34,984 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:03:34,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:34,984 INFO L82 PathProgramCache]: Analyzing trace with hash -2141613115, now seen corresponding path program 1 times [2021-03-13 00:03:34,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:34,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723295380] [2021-03-13 00:03:34,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:35,009 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-13 00:03:35,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723295380] [2021-03-13 00:03:35,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:35,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-13 00:03:35,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856250723] [2021-03-13 00:03:35,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-13 00:03:35,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:35,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-13 00:03:35,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-13 00:03:35,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:35,010 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:35,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-03-13 00:03:35,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:35,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:35,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:35,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:35,074 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-03-13 00:03:35,074 INFO L428 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:03:35,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:35,075 INFO L82 PathProgramCache]: Analyzing trace with hash 293695574, now seen corresponding path program 1 times [2021-03-13 00:03:35,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:35,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961247291] [2021-03-13 00:03:35,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:35,105 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-13 00:03:35,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961247291] [2021-03-13 00:03:35,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:35,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-13 00:03:35,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452427291] [2021-03-13 00:03:35,105 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-13 00:03:35,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:35,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-13 00:03:35,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-13 00:03:35,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:35,106 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:35,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2021-03-13 00:03:35,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:35,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:35,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:35,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:35,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:35,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:35,223 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-03-13 00:03:35,223 INFO L428 AbstractCegarLoop]: === Iteration 4 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:03:35,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:35,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1643401190, now seen corresponding path program 1 times [2021-03-13 00:03:35,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:35,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034467407] [2021-03-13 00:03:35,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:35,264 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-03-13 00:03:35,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034467407] [2021-03-13 00:03:35,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:35,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-13 00:03:35,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044211840] [2021-03-13 00:03:35,264 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-13 00:03:35,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:35,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-13 00:03:35,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-13 00:03:35,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:35,265 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:35,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 00:03:35,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:35,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:35,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:35,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:35,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:35,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:35,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:35,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:35,460 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-03-13 00:03:35,460 INFO L428 AbstractCegarLoop]: === Iteration 5 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:03:35,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:35,460 INFO L82 PathProgramCache]: Analyzing trace with hash 964604087, now seen corresponding path program 1 times [2021-03-13 00:03:35,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:35,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101524707] [2021-03-13 00:03:35,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:35,510 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-03-13 00:03:35,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101524707] [2021-03-13 00:03:35,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:35,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-13 00:03:35,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121261328] [2021-03-13 00:03:35,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-13 00:03:35,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:35,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-13 00:03:35,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-13 00:03:35,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:35,511 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:35,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-03-13 00:03:35,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:35,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:35,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:35,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:35,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:35,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:35,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:35,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:35,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:35,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:35,798 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-03-13 00:03:35,798 INFO L428 AbstractCegarLoop]: === Iteration 6 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:03:35,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:35,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1338462905, now seen corresponding path program 1 times [2021-03-13 00:03:35,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:35,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445705262] [2021-03-13 00:03:35,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:35,879 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-03-13 00:03:35,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445705262] [2021-03-13 00:03:35,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:35,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-13 00:03:35,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120780992] [2021-03-13 00:03:35,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-13 00:03:35,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:35,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-13 00:03:35,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-13 00:03:35,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:35,880 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:35,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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) [2021-03-13 00:03:35,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:35,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:35,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:35,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:35,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:35,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:36,389 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2021-03-13 00:03:36,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:36,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:36,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:36,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:36,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:36,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:36,454 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-03-13 00:03:36,454 INFO L428 AbstractCegarLoop]: === Iteration 7 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:03:36,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:36,455 INFO L82 PathProgramCache]: Analyzing trace with hash 372132472, now seen corresponding path program 1 times [2021-03-13 00:03:36,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:36,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550768786] [2021-03-13 00:03:36,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:36,534 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-03-13 00:03:36,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550768786] [2021-03-13 00:03:36,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:36,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-13 00:03:36,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104914019] [2021-03-13 00:03:36,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-13 00:03:36,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:36,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-13 00:03:36,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-13 00:03:36,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:36,535 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:36,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2021-03-13 00:03:36,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:36,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:36,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:36,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:36,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:36,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:36,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:37,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:37,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:37,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:37,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:37,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:37,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:37,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:03:37,023 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-03-13 00:03:37,024 INFO L428 AbstractCegarLoop]: === Iteration 8 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:03:37,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:37,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1208827208, now seen corresponding path program 1 times [2021-03-13 00:03:37,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:37,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426342650] [2021-03-13 00:03:37,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:37,103 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-03-13 00:03:37,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426342650] [2021-03-13 00:03:37,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:37,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-13 00:03:37,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882703452] [2021-03-13 00:03:37,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-13 00:03:37,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:37,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-13 00:03:37,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-13 00:03:37,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:37,104 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:37,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 00:03:37,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:37,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:37,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:37,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:37,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:37,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:37,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:03:37,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:37,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:37,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:37,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:37,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:37,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:37,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:37,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:03:37,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:03:37,764 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-03-13 00:03:37,765 INFO L428 AbstractCegarLoop]: === Iteration 9 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:03:37,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:37,765 INFO L82 PathProgramCache]: Analyzing trace with hash -945473703, now seen corresponding path program 1 times [2021-03-13 00:03:37,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:37,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318743022] [2021-03-13 00:03:37,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:37,867 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-03-13 00:03:37,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318743022] [2021-03-13 00:03:37,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:37,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-13 00:03:37,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124220140] [2021-03-13 00:03:37,869 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-13 00:03:37,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:37,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-13 00:03:37,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-03-13 00:03:37,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:37,869 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:37,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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) [2021-03-13 00:03:37,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:37,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:37,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:37,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:37,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:37,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:37,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:03:37,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:03:37,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:38,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:38,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:38,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:38,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:38,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:38,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:38,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:03:38,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:03:38,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:03:38,964 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-03-13 00:03:38,964 INFO L428 AbstractCegarLoop]: === Iteration 10 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:03:38,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:38,964 INFO L82 PathProgramCache]: Analyzing trace with hash 387134697, now seen corresponding path program 1 times [2021-03-13 00:03:38,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:38,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702580310] [2021-03-13 00:03:38,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:39,091 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-03-13 00:03:39,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702580310] [2021-03-13 00:03:39,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:39,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-13 00:03:39,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872160213] [2021-03-13 00:03:39,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-13 00:03:39,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:39,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-13 00:03:39,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-03-13 00:03:39,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:39,093 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:39,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 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) [2021-03-13 00:03:39,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:39,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:39,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:39,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:39,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:39,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:39,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:03:39,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:03:39,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:03:39,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:40,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:40,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:40,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:40,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:40,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:40,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:40,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:03:40,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:03:40,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:03:40,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:03:40,787 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-03-13 00:03:40,788 INFO L428 AbstractCegarLoop]: === Iteration 11 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:03:40,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:40,788 INFO L82 PathProgramCache]: Analyzing trace with hash -2001057510, now seen corresponding path program 1 times [2021-03-13 00:03:40,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:40,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977460850] [2021-03-13 00:03:40,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:40,928 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-03-13 00:03:40,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977460850] [2021-03-13 00:03:40,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:40,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-13 00:03:40,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424006299] [2021-03-13 00:03:40,928 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-13 00:03:40,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:40,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-13 00:03:40,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2021-03-13 00:03:40,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:40,929 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:40,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 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) [2021-03-13 00:03:40,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:40,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:40,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:40,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:40,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:40,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:40,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:03:40,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:03:40,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:03:40,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:03:40,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:43,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:43,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:43,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:43,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:43,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:43,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:43,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:03:43,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:03:43,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:03:43,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:03:43,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:03:43,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-03-13 00:03:43,509 INFO L428 AbstractCegarLoop]: === Iteration 12 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:03:43,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:43,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1518151082, now seen corresponding path program 1 times [2021-03-13 00:03:43,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:43,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995798094] [2021-03-13 00:03:43,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:43,795 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-03-13 00:03:43,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995798094] [2021-03-13 00:03:43,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:43,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-13 00:03:43,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799714232] [2021-03-13 00:03:43,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-13 00:03:43,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:43,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-13 00:03:43,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2021-03-13 00:03:43,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:43,796 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:43,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 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) [2021-03-13 00:03:43,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:43,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:43,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:43,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:43,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:43,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:43,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:03:43,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:03:43,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:03:43,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:03:43,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:03:43,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:48,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:48,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:48,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:48,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:48,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:48,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:48,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:03:48,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:03:48,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:03:48,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:03:48,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:03:48,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-13 00:03:48,610 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-03-13 00:03:48,610 INFO L428 AbstractCegarLoop]: === Iteration 13 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:03:48,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:48,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1144994107, now seen corresponding path program 1 times [2021-03-13 00:03:48,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:48,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316241280] [2021-03-13 00:03:48,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:48,791 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-03-13 00:03:48,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316241280] [2021-03-13 00:03:48,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:48,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-13 00:03:48,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943383390] [2021-03-13 00:03:48,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-13 00:03:48,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:48,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-13 00:03:48,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-03-13 00:03:48,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:48,793 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:48,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 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) [2021-03-13 00:03:48,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:48,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:48,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:48,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:48,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:48,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:48,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:03:48,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:03:48,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:03:48,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:03:48,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:03:48,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-03-13 00:03:48,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:49,229 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-03-13 00:03:58,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:58,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:58,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:58,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:58,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:58,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:58,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:03:58,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:03:58,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:03:58,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:03:58,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:03:58,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-13 00:03:58,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-13 00:03:58,288 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-03-13 00:03:58,288 INFO L428 AbstractCegarLoop]: === Iteration 14 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:03:58,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:58,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1145265673, now seen corresponding path program 1 times [2021-03-13 00:03:58,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:58,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609533305] [2021-03-13 00:03:58,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:58,292 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:03:58,294 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:03:58,297 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-13 00:03:58,297 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-13 00:03:58,297 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-03-13 00:03:58,299 WARN L342 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-13 00:03:58,299 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2021-03-13 00:03:58,312 WARN L313 ript$VariableManager]: TermVariabe threadThread12of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,312 WARN L313 ript$VariableManager]: TermVariabe threadThread12of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,312 WARN L313 ript$VariableManager]: TermVariabe threadThread12of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,312 WARN L313 ript$VariableManager]: TermVariabe threadThread12of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,313 WARN L313 ript$VariableManager]: TermVariabe threadThread1of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,313 WARN L313 ript$VariableManager]: TermVariabe threadThread1of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,313 WARN L313 ript$VariableManager]: TermVariabe threadThread1of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,313 WARN L313 ript$VariableManager]: TermVariabe threadThread1of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,313 WARN L313 ript$VariableManager]: TermVariabe threadThread10of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,313 WARN L313 ript$VariableManager]: TermVariabe threadThread10of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,313 WARN L313 ript$VariableManager]: TermVariabe threadThread10of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,313 WARN L313 ript$VariableManager]: TermVariabe threadThread10of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,313 WARN L313 ript$VariableManager]: TermVariabe threadThread4of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,313 WARN L313 ript$VariableManager]: TermVariabe threadThread4of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,313 WARN L313 ript$VariableManager]: TermVariabe threadThread4of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,313 WARN L313 ript$VariableManager]: TermVariabe threadThread4of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,313 WARN L313 ript$VariableManager]: TermVariabe threadThread11of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,313 WARN L313 ript$VariableManager]: TermVariabe threadThread11of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,314 WARN L313 ript$VariableManager]: TermVariabe threadThread11of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,314 WARN L313 ript$VariableManager]: TermVariabe threadThread11of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,314 WARN L313 ript$VariableManager]: TermVariabe threadThread14of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,314 WARN L313 ript$VariableManager]: TermVariabe threadThread14of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,314 WARN L313 ript$VariableManager]: TermVariabe threadThread14of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,314 WARN L313 ript$VariableManager]: TermVariabe threadThread14of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,314 WARN L313 ript$VariableManager]: TermVariabe threadThread5of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,314 WARN L313 ript$VariableManager]: TermVariabe threadThread5of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,314 WARN L313 ript$VariableManager]: TermVariabe threadThread5of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,314 WARN L313 ript$VariableManager]: TermVariabe threadThread5of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,314 WARN L313 ript$VariableManager]: TermVariabe threadThread13of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,314 WARN L313 ript$VariableManager]: TermVariabe threadThread13of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,314 WARN L313 ript$VariableManager]: TermVariabe threadThread13of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,314 WARN L313 ript$VariableManager]: TermVariabe threadThread13of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,314 WARN L313 ript$VariableManager]: TermVariabe threadThread6of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,315 WARN L313 ript$VariableManager]: TermVariabe threadThread6of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,315 WARN L313 ript$VariableManager]: TermVariabe threadThread6of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,315 WARN L313 ript$VariableManager]: TermVariabe threadThread6of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,315 WARN L313 ript$VariableManager]: TermVariabe threadThread7of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,315 WARN L313 ript$VariableManager]: TermVariabe threadThread7of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,315 WARN L313 ript$VariableManager]: TermVariabe threadThread7of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,315 WARN L313 ript$VariableManager]: TermVariabe threadThread7of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,315 WARN L313 ript$VariableManager]: TermVariabe threadThread9of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,315 WARN L313 ript$VariableManager]: TermVariabe threadThread9of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,315 WARN L313 ript$VariableManager]: TermVariabe threadThread9of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,315 WARN L313 ript$VariableManager]: TermVariabe threadThread9of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,315 WARN L313 ript$VariableManager]: TermVariabe threadThread8of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,315 WARN L313 ript$VariableManager]: TermVariabe threadThread8of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,315 WARN L313 ript$VariableManager]: TermVariabe threadThread8of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,316 WARN L313 ript$VariableManager]: TermVariabe threadThread8of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,316 WARN L313 ript$VariableManager]: TermVariabe threadThread15of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,316 WARN L313 ript$VariableManager]: TermVariabe threadThread15of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,316 WARN L313 ript$VariableManager]: TermVariabe threadThread15of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,316 WARN L313 ript$VariableManager]: TermVariabe threadThread15of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,316 WARN L313 ript$VariableManager]: TermVariabe threadThread3of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,316 WARN L313 ript$VariableManager]: TermVariabe threadThread3of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,316 WARN L313 ript$VariableManager]: TermVariabe threadThread3of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,316 WARN L313 ript$VariableManager]: TermVariabe threadThread3of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,316 WARN L313 ript$VariableManager]: TermVariabe threadThread2of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,316 WARN L313 ript$VariableManager]: TermVariabe threadThread2of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,316 WARN L313 ript$VariableManager]: TermVariabe threadThread2of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,316 WARN L313 ript$VariableManager]: TermVariabe threadThread2of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,317 WARN L313 ript$VariableManager]: TermVariabe threadThread1of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,317 WARN L313 ript$VariableManager]: TermVariabe threadThread2of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,318 WARN L313 ript$VariableManager]: TermVariabe threadThread3of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,318 WARN L313 ript$VariableManager]: TermVariabe threadThread4of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,319 WARN L313 ript$VariableManager]: TermVariabe threadThread5of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,319 WARN L313 ript$VariableManager]: TermVariabe threadThread6of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,320 WARN L313 ript$VariableManager]: TermVariabe threadThread7of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,320 WARN L313 ript$VariableManager]: TermVariabe threadThread8of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,321 WARN L313 ript$VariableManager]: TermVariabe threadThread9of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,321 WARN L313 ript$VariableManager]: TermVariabe threadThread10of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,322 WARN L313 ript$VariableManager]: TermVariabe threadThread11of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,322 WARN L313 ript$VariableManager]: TermVariabe threadThread12of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,323 WARN L313 ript$VariableManager]: TermVariabe threadThread13of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,323 WARN L313 ript$VariableManager]: TermVariabe threadThread14of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,324 WARN L313 ript$VariableManager]: TermVariabe threadThread15of15ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:03:58,324 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-13 00:03:58,325 INFO L253 AbstractCegarLoop]: Starting to check reachability of 17 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 00:03:58,335 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 00:03:58,336 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 00:03:58,336 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 00:03:58,336 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 00:03:58,336 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 00:03:58,336 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 00:03:58,336 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 00:03:58,336 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 00:03:58,337 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 00:03:58,337 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 93 transitions, 471 flow [2021-03-13 00:03:58,337 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 93 transitions, 471 flow [2021-03-13 00:03:58,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 93 transitions, 471 flow [2021-03-13 00:03:58,345 INFO L129 PetriNetUnfolder]: 0/108 cut-off events. [2021-03-13 00:03:58,345 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-13 00:03:58,345 INFO L84 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 108 events. 0/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 421 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 0. Up to 16 conditions per place. [2021-03-13 00:03:58,349 INFO L116 LiptonReduction]: Number of co-enabled transitions 6600 [2021-03-13 00:03:58,602 INFO L131 LiptonReduction]: Checked pairs total: 14390 [2021-03-13 00:03:58,602 INFO L133 LiptonReduction]: Total number of compositions: 15 [2021-03-13 00:03:58,603 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:58,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:58,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1110515231, now seen corresponding path program 1 times [2021-03-13 00:03:58,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:58,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654280471] [2021-03-13 00:03:58,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:58,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-13 00:03:58,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654280471] [2021-03-13 00:03:58,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:58,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-13 00:03:58,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779867789] [2021-03-13 00:03:58,623 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-13 00:03:58,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:58,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-13 00:03:58,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-13 00:03:58,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:58,624 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:58,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-03-13 00:03:58,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:58,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:58,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-03-13 00:03:58,665 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:58,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:58,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1281417099, now seen corresponding path program 1 times [2021-03-13 00:03:58,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:58,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916923414] [2021-03-13 00:03:58,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:58,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:58,690 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-13 00:03:58,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916923414] [2021-03-13 00:03:58,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:58,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-13 00:03:58,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487959925] [2021-03-13 00:03:58,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-13 00:03:58,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:58,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-13 00:03:58,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-13 00:03:58,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:58,691 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:58,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-03-13 00:03:58,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:58,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:58,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:58,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:58,746 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-03-13 00:03:58,746 INFO L428 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:58,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:58,747 INFO L82 PathProgramCache]: Analyzing trace with hash 259001920, now seen corresponding path program 1 times [2021-03-13 00:03:58,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:58,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313944873] [2021-03-13 00:03:58,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:58,784 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-13 00:03:58,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313944873] [2021-03-13 00:03:58,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:58,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-13 00:03:58,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127954875] [2021-03-13 00:03:58,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-13 00:03:58,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:58,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-13 00:03:58,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-13 00:03:58,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:58,785 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:58,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2021-03-13 00:03:58,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:58,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:58,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:58,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:58,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:58,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:58,886 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-03-13 00:03:58,886 INFO L428 AbstractCegarLoop]: === Iteration 4 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:58,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:58,886 INFO L82 PathProgramCache]: Analyzing trace with hash -980620394, now seen corresponding path program 1 times [2021-03-13 00:03:58,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:58,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698579652] [2021-03-13 00:03:58,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:58,938 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-03-13 00:03:58,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698579652] [2021-03-13 00:03:58,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:58,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-13 00:03:58,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800137709] [2021-03-13 00:03:58,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-13 00:03:58,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:58,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-13 00:03:58,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-13 00:03:58,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:58,940 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:58,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 00:03:58,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:58,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:58,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:58,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:59,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:59,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:59,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:59,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:59,111 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-03-13 00:03:59,111 INFO L428 AbstractCegarLoop]: === Iteration 5 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:59,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:59,112 INFO L82 PathProgramCache]: Analyzing trace with hash 476404897, now seen corresponding path program 1 times [2021-03-13 00:03:59,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:59,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052165082] [2021-03-13 00:03:59,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:59,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:59,155 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-03-13 00:03:59,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052165082] [2021-03-13 00:03:59,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:59,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-13 00:03:59,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118864798] [2021-03-13 00:03:59,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-13 00:03:59,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:59,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-13 00:03:59,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-13 00:03:59,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:59,156 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:59,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-03-13 00:03:59,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:59,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:59,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:59,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:59,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:59,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:59,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:59,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:59,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:59,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:59,387 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-03-13 00:03:59,388 INFO L428 AbstractCegarLoop]: === Iteration 6 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:59,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:59,388 INFO L82 PathProgramCache]: Analyzing trace with hash -2102877641, now seen corresponding path program 1 times [2021-03-13 00:03:59,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:59,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396091401] [2021-03-13 00:03:59,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:59,457 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-03-13 00:03:59,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396091401] [2021-03-13 00:03:59,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:59,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-13 00:03:59,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39213042] [2021-03-13 00:03:59,460 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-13 00:03:59,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:59,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-13 00:03:59,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-13 00:03:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:59,460 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:59,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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) [2021-03-13 00:03:59,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:59,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:59,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:59,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:59,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:59,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:59,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:59,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:59,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:59,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:59,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:59,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:59,813 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-03-13 00:03:59,813 INFO L428 AbstractCegarLoop]: === Iteration 7 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:03:59,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:03:59,813 INFO L82 PathProgramCache]: Analyzing trace with hash 27721026, now seen corresponding path program 1 times [2021-03-13 00:03:59,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:03:59,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519767884] [2021-03-13 00:03:59,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:03:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:03:59,883 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-03-13 00:03:59,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519767884] [2021-03-13 00:03:59,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:03:59,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-13 00:03:59,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113111096] [2021-03-13 00:03:59,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-13 00:03:59,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:03:59,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-13 00:03:59,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-13 00:03:59,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:03:59,884 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:03:59,884 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2021-03-13 00:03:59,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:03:59,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:03:59,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:03:59,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:03:59,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:03:59,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:03:59,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:00,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:00,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:00,366 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-03-13 00:04:00,366 INFO L428 AbstractCegarLoop]: === Iteration 8 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:00,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:00,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1804776280, now seen corresponding path program 1 times [2021-03-13 00:04:00,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:00,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057181024] [2021-03-13 00:04:00,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:00,449 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-03-13 00:04:00,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057181024] [2021-03-13 00:04:00,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:00,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-13 00:04:00,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484555201] [2021-03-13 00:04:00,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-13 00:04:00,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:00,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-13 00:04:00,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-13 00:04:00,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:00,450 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:00,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 00:04:00,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:00,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:00,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:00,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:00,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:00,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:00,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:00,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:00,861 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-03-13 00:04:01,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:01,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:01,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:01,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:01,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:01,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:01,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:01,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:01,268 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-03-13 00:04:01,268 INFO L428 AbstractCegarLoop]: === Iteration 9 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:01,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:01,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1727224029, now seen corresponding path program 1 times [2021-03-13 00:04:01,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:01,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212077376] [2021-03-13 00:04:01,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:01,363 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-03-13 00:04:01,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212077376] [2021-03-13 00:04:01,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:01,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-13 00:04:01,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826174610] [2021-03-13 00:04:01,364 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-13 00:04:01,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:01,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-13 00:04:01,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-03-13 00:04:01,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:01,364 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:01,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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) [2021-03-13 00:04:01,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:01,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:01,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:01,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:01,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:01,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:01,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:01,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:01,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:02,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:02,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:02,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:02,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:02,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:02,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:02,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:02,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:02,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:04:02,305 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-03-13 00:04:02,305 INFO L428 AbstractCegarLoop]: === Iteration 10 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:02,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:02,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1281694407, now seen corresponding path program 1 times [2021-03-13 00:04:02,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:02,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296359579] [2021-03-13 00:04:02,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:02,418 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-03-13 00:04:02,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296359579] [2021-03-13 00:04:02,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:02,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-13 00:04:02,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887709946] [2021-03-13 00:04:02,418 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-13 00:04:02,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:02,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-13 00:04:02,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-03-13 00:04:02,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:02,419 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:02,419 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 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) [2021-03-13 00:04:02,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:02,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:02,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:02,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:02,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:02,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:02,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:02,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:02,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:04:02,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:03,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:03,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:03,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:03,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:03,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:03,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:03,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:03,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:03,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:04:03,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:04:03,962 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-03-13 00:04:03,962 INFO L428 AbstractCegarLoop]: === Iteration 11 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:03,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:03,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1060204636, now seen corresponding path program 1 times [2021-03-13 00:04:03,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:03,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401143607] [2021-03-13 00:04:03,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:04,085 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-03-13 00:04:04,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401143607] [2021-03-13 00:04:04,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:04,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-13 00:04:04,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42683651] [2021-03-13 00:04:04,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-13 00:04:04,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:04,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-13 00:04:04,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2021-03-13 00:04:04,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:04,086 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:04,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 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) [2021-03-13 00:04:04,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:04,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:04,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:04,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:04,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:04,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:04,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:04,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:04,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:04:04,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:04:04,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:04,796 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-03-13 00:04:06,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:04:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:04:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:04:06,942 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-03-13 00:04:06,942 INFO L428 AbstractCegarLoop]: === Iteration 12 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:06,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:06,943 INFO L82 PathProgramCache]: Analyzing trace with hash 548567253, now seen corresponding path program 1 times [2021-03-13 00:04:06,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:06,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754451304] [2021-03-13 00:04:06,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:07,074 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-03-13 00:04:07,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754451304] [2021-03-13 00:04:07,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:07,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-13 00:04:07,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662985472] [2021-03-13 00:04:07,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-13 00:04:07,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:07,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-13 00:04:07,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2021-03-13 00:04:07,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:07,074 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:07,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 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) [2021-03-13 00:04:07,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:07,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:07,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:07,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:07,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:07,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:07,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:07,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:07,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:04:07,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:04:07,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:04:07,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:04:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:04:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:04:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-13 00:04:11,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-03-13 00:04:11,927 INFO L428 AbstractCegarLoop]: === Iteration 13 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:11,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:11,927 INFO L82 PathProgramCache]: Analyzing trace with hash -618770432, now seen corresponding path program 1 times [2021-03-13 00:04:11,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:11,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256801988] [2021-03-13 00:04:11,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:12,081 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-03-13 00:04:12,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256801988] [2021-03-13 00:04:12,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:12,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-13 00:04:12,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127838156] [2021-03-13 00:04:12,082 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-13 00:04:12,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:12,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-13 00:04:12,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-03-13 00:04:12,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:12,083 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:12,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 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) [2021-03-13 00:04:12,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:12,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:12,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:12,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:12,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:12,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:12,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:12,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:12,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:04:12,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:04:12,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:04:12,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-03-13 00:04:12,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:22,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:22,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:22,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:22,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:22,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:22,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:22,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:22,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:22,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:04:22,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:04:22,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:04:22,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-13 00:04:22,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-13 00:04:22,256 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-03-13 00:04:22,256 INFO L428 AbstractCegarLoop]: === Iteration 14 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:22,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:22,257 INFO L82 PathProgramCache]: Analyzing trace with hash 540899574, now seen corresponding path program 1 times [2021-03-13 00:04:22,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:22,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932612594] [2021-03-13 00:04:22,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:22,415 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-03-13 00:04:22,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932612594] [2021-03-13 00:04:22,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:22,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-13 00:04:22,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345159018] [2021-03-13 00:04:22,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-13 00:04:22,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:22,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-13 00:04:22,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-03-13 00:04:22,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:22,416 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:22,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 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) [2021-03-13 00:04:22,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:22,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:22,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:22,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:22,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:22,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:22,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:22,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:22,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:04:22,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:04:22,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:04:22,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-03-13 00:04:22,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-03-13 00:04:22,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:43,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:43,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:43,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:43,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:43,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:43,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:43,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:43,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:43,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:04:43,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:04:43,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:04:43,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-13 00:04:43,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-13 00:04:43,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-13 00:04:43,416 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-03-13 00:04:43,416 INFO L428 AbstractCegarLoop]: === Iteration 15 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:43,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:43,416 INFO L82 PathProgramCache]: Analyzing trace with hash 541766531, now seen corresponding path program 1 times [2021-03-13 00:04:43,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:43,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094078994] [2021-03-13 00:04:43,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:04:43,420 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:04:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:04:43,422 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:04:43,425 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-13 00:04:43,425 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-13 00:04:43,425 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-03-13 00:04:43,426 WARN L342 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-13 00:04:43,426 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2021-03-13 00:04:43,459 WARN L313 ript$VariableManager]: TermVariabe threadThread10of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,459 WARN L313 ript$VariableManager]: TermVariabe threadThread10of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,459 WARN L313 ript$VariableManager]: TermVariabe threadThread10of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,459 WARN L313 ript$VariableManager]: TermVariabe threadThread10of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,459 WARN L313 ript$VariableManager]: TermVariabe threadThread3of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,459 WARN L313 ript$VariableManager]: TermVariabe threadThread3of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,459 WARN L313 ript$VariableManager]: TermVariabe threadThread3of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,459 WARN L313 ript$VariableManager]: TermVariabe threadThread3of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,459 WARN L313 ript$VariableManager]: TermVariabe threadThread13of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,460 WARN L313 ript$VariableManager]: TermVariabe threadThread13of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,460 WARN L313 ript$VariableManager]: TermVariabe threadThread13of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,460 WARN L313 ript$VariableManager]: TermVariabe threadThread13of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,460 WARN L313 ript$VariableManager]: TermVariabe threadThread4of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,460 WARN L313 ript$VariableManager]: TermVariabe threadThread4of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,460 WARN L313 ript$VariableManager]: TermVariabe threadThread4of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,460 WARN L313 ript$VariableManager]: TermVariabe threadThread4of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,460 WARN L313 ript$VariableManager]: TermVariabe threadThread5of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,460 WARN L313 ript$VariableManager]: TermVariabe threadThread5of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,460 WARN L313 ript$VariableManager]: TermVariabe threadThread5of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,460 WARN L313 ript$VariableManager]: TermVariabe threadThread5of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,460 WARN L313 ript$VariableManager]: TermVariabe threadThread11of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,460 WARN L313 ript$VariableManager]: TermVariabe threadThread11of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,460 WARN L313 ript$VariableManager]: TermVariabe threadThread11of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,460 WARN L313 ript$VariableManager]: TermVariabe threadThread11of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,461 WARN L313 ript$VariableManager]: TermVariabe threadThread12of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,461 WARN L313 ript$VariableManager]: TermVariabe threadThread12of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,461 WARN L313 ript$VariableManager]: TermVariabe threadThread12of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,461 WARN L313 ript$VariableManager]: TermVariabe threadThread12of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,461 WARN L313 ript$VariableManager]: TermVariabe threadThread6of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,461 WARN L313 ript$VariableManager]: TermVariabe threadThread6of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,461 WARN L313 ript$VariableManager]: TermVariabe threadThread6of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,461 WARN L313 ript$VariableManager]: TermVariabe threadThread6of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,461 WARN L313 ript$VariableManager]: TermVariabe threadThread7of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,461 WARN L313 ript$VariableManager]: TermVariabe threadThread7of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,461 WARN L313 ript$VariableManager]: TermVariabe threadThread7of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,461 WARN L313 ript$VariableManager]: TermVariabe threadThread7of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,461 WARN L313 ript$VariableManager]: TermVariabe threadThread2of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,461 WARN L313 ript$VariableManager]: TermVariabe threadThread2of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,462 WARN L313 ript$VariableManager]: TermVariabe threadThread2of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,462 WARN L313 ript$VariableManager]: TermVariabe threadThread2of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,462 WARN L313 ript$VariableManager]: TermVariabe threadThread14of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,462 WARN L313 ript$VariableManager]: TermVariabe threadThread14of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,462 WARN L313 ript$VariableManager]: TermVariabe threadThread14of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,462 WARN L313 ript$VariableManager]: TermVariabe threadThread14of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,462 WARN L313 ript$VariableManager]: TermVariabe threadThread1of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,462 WARN L313 ript$VariableManager]: TermVariabe threadThread1of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,462 WARN L313 ript$VariableManager]: TermVariabe threadThread1of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,462 WARN L313 ript$VariableManager]: TermVariabe threadThread1of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,462 WARN L313 ript$VariableManager]: TermVariabe threadThread8of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,462 WARN L313 ript$VariableManager]: TermVariabe threadThread8of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,462 WARN L313 ript$VariableManager]: TermVariabe threadThread8of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,462 WARN L313 ript$VariableManager]: TermVariabe threadThread8of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,462 WARN L313 ript$VariableManager]: TermVariabe threadThread9of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,462 WARN L313 ript$VariableManager]: TermVariabe threadThread9of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,463 WARN L313 ript$VariableManager]: TermVariabe threadThread9of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,463 WARN L313 ript$VariableManager]: TermVariabe threadThread9of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,463 WARN L313 ript$VariableManager]: TermVariabe threadThread15of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,463 WARN L313 ript$VariableManager]: TermVariabe threadThread15of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,463 WARN L313 ript$VariableManager]: TermVariabe threadThread15of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,463 WARN L313 ript$VariableManager]: TermVariabe threadThread15of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,463 WARN L313 ript$VariableManager]: TermVariabe threadThread16of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,463 WARN L313 ript$VariableManager]: TermVariabe threadThread16of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,463 WARN L313 ript$VariableManager]: TermVariabe threadThread16of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,463 WARN L313 ript$VariableManager]: TermVariabe threadThread16of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,463 WARN L313 ript$VariableManager]: TermVariabe threadThread1of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,464 WARN L313 ript$VariableManager]: TermVariabe threadThread2of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,465 WARN L313 ript$VariableManager]: TermVariabe threadThread3of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,465 WARN L313 ript$VariableManager]: TermVariabe threadThread4of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,466 WARN L313 ript$VariableManager]: TermVariabe threadThread5of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,466 WARN L313 ript$VariableManager]: TermVariabe threadThread6of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,467 WARN L313 ript$VariableManager]: TermVariabe threadThread7of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,467 WARN L313 ript$VariableManager]: TermVariabe threadThread8of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,470 WARN L313 ript$VariableManager]: TermVariabe threadThread9of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,471 WARN L313 ript$VariableManager]: TermVariabe threadThread10of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,471 WARN L313 ript$VariableManager]: TermVariabe threadThread11of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,472 WARN L313 ript$VariableManager]: TermVariabe threadThread12of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,472 WARN L313 ript$VariableManager]: TermVariabe threadThread13of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,473 WARN L313 ript$VariableManager]: TermVariabe threadThread14of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,473 WARN L313 ript$VariableManager]: TermVariabe threadThread15of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,473 WARN L313 ript$VariableManager]: TermVariabe threadThread16of16ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:43,474 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-13 00:04:43,474 INFO L253 AbstractCegarLoop]: Starting to check reachability of 18 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 00:04:43,483 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 00:04:43,483 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 00:04:43,483 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 00:04:43,483 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 00:04:43,483 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 00:04:43,483 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 00:04:43,483 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 00:04:43,483 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 00:04:43,484 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 00:04:43,484 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 99 transitions, 518 flow [2021-03-13 00:04:43,484 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 99 transitions, 518 flow [2021-03-13 00:04:43,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 132 places, 99 transitions, 518 flow [2021-03-13 00:04:43,494 INFO L129 PetriNetUnfolder]: 0/115 cut-off events. [2021-03-13 00:04:43,494 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-13 00:04:43,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 115 events. 0/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 458 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2021-03-13 00:04:43,499 INFO L116 LiptonReduction]: Number of co-enabled transitions 7520 [2021-03-13 00:04:43,729 INFO L131 LiptonReduction]: Checked pairs total: 15626 [2021-03-13 00:04:43,729 INFO L133 LiptonReduction]: Total number of compositions: 16 [2021-03-13 00:04:43,731 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:04:43,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:43,731 INFO L82 PathProgramCache]: Analyzing trace with hash 976105092, now seen corresponding path program 1 times [2021-03-13 00:04:43,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:43,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057382196] [2021-03-13 00:04:43,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:43,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-13 00:04:43,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057382196] [2021-03-13 00:04:43,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:43,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-13 00:04:43,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318178291] [2021-03-13 00:04:43,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-13 00:04:43,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:43,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-13 00:04:43,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-13 00:04:43,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:43,746 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:43,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-03-13 00:04:43,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:43,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:43,768 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-03-13 00:04:43,768 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:04:43,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:43,768 INFO L82 PathProgramCache]: Analyzing trace with hash -2074984937, now seen corresponding path program 1 times [2021-03-13 00:04:43,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:43,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558351434] [2021-03-13 00:04:43,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:43,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-13 00:04:43,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558351434] [2021-03-13 00:04:43,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:43,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-13 00:04:43,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290404955] [2021-03-13 00:04:43,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-13 00:04:43,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:43,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-13 00:04:43,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-13 00:04:43,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:43,985 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:43,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-03-13 00:04:43,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:43,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:44,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:44,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:44,077 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-03-13 00:04:44,077 INFO L428 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:04:44,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:44,077 INFO L82 PathProgramCache]: Analyzing trace with hash -433009142, now seen corresponding path program 1 times [2021-03-13 00:04:44,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:44,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581676784] [2021-03-13 00:04:44,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:44,135 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-03-13 00:04:44,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581676784] [2021-03-13 00:04:44,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:44,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-13 00:04:44,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359375455] [2021-03-13 00:04:44,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-13 00:04:44,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:44,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-13 00:04:44,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-13 00:04:44,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:44,136 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:44,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 00:04:44,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:44,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:44,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:44,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:44,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:44,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:44,287 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-03-13 00:04:44,287 INFO L428 AbstractCegarLoop]: === Iteration 4 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:04:44,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:44,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1986039122, now seen corresponding path program 1 times [2021-03-13 00:04:44,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:44,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435600272] [2021-03-13 00:04:44,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:44,327 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-03-13 00:04:44,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435600272] [2021-03-13 00:04:44,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:44,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-13 00:04:44,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539938617] [2021-03-13 00:04:44,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-13 00:04:44,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:44,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-13 00:04:44,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-13 00:04:44,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:44,328 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:44,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 00:04:44,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:44,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:44,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:44,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:44,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:44,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:44,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:44,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:44,536 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-03-13 00:04:44,536 INFO L428 AbstractCegarLoop]: === Iteration 5 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:04:44,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:44,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1380556137, now seen corresponding path program 1 times [2021-03-13 00:04:44,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:44,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724863704] [2021-03-13 00:04:44,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:44,586 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-03-13 00:04:44,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724863704] [2021-03-13 00:04:44,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:44,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-13 00:04:44,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906279309] [2021-03-13 00:04:44,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-13 00:04:44,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:44,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-13 00:04:44,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-13 00:04:44,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:44,587 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:44,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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) [2021-03-13 00:04:44,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:44,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:44,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:44,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:44,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:44,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:44,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:44,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:44,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:44,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:44,873 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-03-13 00:04:44,873 INFO L428 AbstractCegarLoop]: === Iteration 6 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:04:44,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:44,873 INFO L82 PathProgramCache]: Analyzing trace with hash -456344435, now seen corresponding path program 1 times [2021-03-13 00:04:44,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:44,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596695662] [2021-03-13 00:04:44,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:44,944 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-03-13 00:04:44,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596695662] [2021-03-13 00:04:44,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:44,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-13 00:04:44,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302475506] [2021-03-13 00:04:44,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-13 00:04:44,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:44,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-13 00:04:44,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-13 00:04:44,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:44,945 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:44,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2021-03-13 00:04:44,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:44,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:44,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:44,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:44,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:44,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:45,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:45,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:45,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:45,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:45,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:45,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:45,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-03-13 00:04:45,312 INFO L428 AbstractCegarLoop]: === Iteration 7 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:04:45,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:45,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1832519582, now seen corresponding path program 1 times [2021-03-13 00:04:45,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:45,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134103831] [2021-03-13 00:04:45,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:45,379 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-03-13 00:04:45,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134103831] [2021-03-13 00:04:45,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:45,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-13 00:04:45,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914706849] [2021-03-13 00:04:45,379 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-13 00:04:45,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:45,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-13 00:04:45,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-13 00:04:45,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:45,380 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:45,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 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) [2021-03-13 00:04:45,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:45,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:45,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:45,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:45,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:45,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:45,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:45,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:45,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:45,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:45,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:45,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:45,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:45,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:45,818 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-03-13 00:04:45,818 INFO L428 AbstractCegarLoop]: === Iteration 8 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:04:45,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:45,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1506465664, now seen corresponding path program 1 times [2021-03-13 00:04:45,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:45,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264100969] [2021-03-13 00:04:45,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:45,902 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-03-13 00:04:45,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264100969] [2021-03-13 00:04:45,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:45,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-13 00:04:45,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712886341] [2021-03-13 00:04:45,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-13 00:04:45,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:45,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-13 00:04:45,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-13 00:04:45,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:45,903 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:45,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 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) [2021-03-13 00:04:45,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:45,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:45,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:45,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:45,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:45,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:45,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:45,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:46,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:46,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:46,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:46,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:46,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:46,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:46,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:46,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:46,516 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-03-13 00:04:46,516 INFO L428 AbstractCegarLoop]: === Iteration 9 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:04:46,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:46,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1008257670, now seen corresponding path program 1 times [2021-03-13 00:04:46,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:46,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223750271] [2021-03-13 00:04:46,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:46,614 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-03-13 00:04:46,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223750271] [2021-03-13 00:04:46,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:46,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-13 00:04:46,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997311453] [2021-03-13 00:04:46,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-13 00:04:46,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:46,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-13 00:04:46,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-03-13 00:04:46,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:46,615 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:46,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 00:04:46,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:46,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:46,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:46,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:46,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:46,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:46,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:46,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:46,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:47,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:47,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:47,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:47,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:47,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:47,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:47,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:47,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:47,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:47,145 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-03-13 00:04:47,145 INFO L428 AbstractCegarLoop]: === Iteration 10 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-13 00:04:47,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:47,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1191219760, now seen corresponding path program 1 times [2021-03-13 00:04:47,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:47,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166300508] [2021-03-13 00:04:47,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:04:47,150 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:04:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-13 00:04:47,151 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-13 00:04:47,153 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-13 00:04:47,153 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-13 00:04:47,153 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-03-13 00:04:47,154 WARN L342 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-13 00:04:47,154 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2021-03-13 00:04:47,172 WARN L313 ript$VariableManager]: TermVariabe threadThread12of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,172 WARN L313 ript$VariableManager]: TermVariabe threadThread12of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,172 WARN L313 ript$VariableManager]: TermVariabe threadThread12of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,172 WARN L313 ript$VariableManager]: TermVariabe threadThread12of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,172 WARN L313 ript$VariableManager]: TermVariabe threadThread2of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,172 WARN L313 ript$VariableManager]: TermVariabe threadThread2of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,172 WARN L313 ript$VariableManager]: TermVariabe threadThread2of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,172 WARN L313 ript$VariableManager]: TermVariabe threadThread2of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,172 WARN L313 ript$VariableManager]: TermVariabe threadThread11of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,172 WARN L313 ript$VariableManager]: TermVariabe threadThread11of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,173 WARN L313 ript$VariableManager]: TermVariabe threadThread11of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,173 WARN L313 ript$VariableManager]: TermVariabe threadThread11of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,173 WARN L313 ript$VariableManager]: TermVariabe threadThread3of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,173 WARN L313 ript$VariableManager]: TermVariabe threadThread3of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,173 WARN L313 ript$VariableManager]: TermVariabe threadThread3of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,173 WARN L313 ript$VariableManager]: TermVariabe threadThread3of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,173 WARN L313 ript$VariableManager]: TermVariabe threadThread10of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,173 WARN L313 ript$VariableManager]: TermVariabe threadThread10of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,173 WARN L313 ript$VariableManager]: TermVariabe threadThread10of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,173 WARN L313 ript$VariableManager]: TermVariabe threadThread10of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,173 WARN L313 ript$VariableManager]: TermVariabe threadThread5of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,173 WARN L313 ript$VariableManager]: TermVariabe threadThread5of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,173 WARN L313 ript$VariableManager]: TermVariabe threadThread5of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,173 WARN L313 ript$VariableManager]: TermVariabe threadThread5of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,173 WARN L313 ript$VariableManager]: TermVariabe threadThread16of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread16of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread16of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread16of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread4of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread4of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread4of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread4of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread6of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread6of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread6of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread6of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread15of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread15of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread15of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread15of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread17of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread17of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread17of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread17of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread1of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,174 WARN L313 ript$VariableManager]: TermVariabe threadThread1of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread1of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread1of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread9of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread9of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread9of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread9of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread8of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread8of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread8of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread8of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread13of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread13of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread13of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread13of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread7of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread7of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread7of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread7of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread14of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread14of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,175 WARN L313 ript$VariableManager]: TermVariabe threadThread14of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,176 WARN L313 ript$VariableManager]: TermVariabe threadThread14of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,176 WARN L313 ript$VariableManager]: TermVariabe threadThread1of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,176 WARN L313 ript$VariableManager]: TermVariabe threadThread2of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,177 WARN L313 ript$VariableManager]: TermVariabe threadThread3of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,178 WARN L313 ript$VariableManager]: TermVariabe threadThread4of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,178 WARN L313 ript$VariableManager]: TermVariabe threadThread5of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,178 WARN L313 ript$VariableManager]: TermVariabe threadThread6of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,179 WARN L313 ript$VariableManager]: TermVariabe threadThread7of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,179 WARN L313 ript$VariableManager]: TermVariabe threadThread8of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,180 WARN L313 ript$VariableManager]: TermVariabe threadThread9of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,180 WARN L313 ript$VariableManager]: TermVariabe threadThread10of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,181 WARN L313 ript$VariableManager]: TermVariabe threadThread11of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,181 WARN L313 ript$VariableManager]: TermVariabe threadThread12of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,181 WARN L313 ript$VariableManager]: TermVariabe threadThread13of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,182 WARN L313 ript$VariableManager]: TermVariabe threadThread14of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,182 WARN L313 ript$VariableManager]: TermVariabe threadThread15of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,183 WARN L313 ript$VariableManager]: TermVariabe threadThread16of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,183 WARN L313 ript$VariableManager]: TermVariabe threadThread17of17ForFork0_t not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-13 00:04:47,184 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-13 00:04:47,184 INFO L253 AbstractCegarLoop]: Starting to check reachability of 19 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-13 00:04:47,188 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-13 00:04:47,188 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-13 00:04:47,188 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-13 00:04:47,188 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-13 00:04:47,188 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-13 00:04:47,188 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-13 00:04:47,188 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-13 00:04:47,188 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-13 00:04:47,189 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-13 00:04:47,190 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 105 transitions, 567 flow [2021-03-13 00:04:47,190 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 105 transitions, 567 flow [2021-03-13 00:04:47,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 140 places, 105 transitions, 567 flow [2021-03-13 00:04:47,200 INFO L129 PetriNetUnfolder]: 0/122 cut-off events. [2021-03-13 00:04:47,200 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-13 00:04:47,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 122 events. 0/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 484 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 0. Up to 18 conditions per place. [2021-03-13 00:04:47,204 INFO L116 LiptonReduction]: Number of co-enabled transitions 8500 [2021-03-13 00:04:47,642 INFO L131 LiptonReduction]: Checked pairs total: 18550 [2021-03-13 00:04:47,643 INFO L133 LiptonReduction]: Total number of compositions: 17 [2021-03-13 00:04:47,643 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:47,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:47,644 INFO L82 PathProgramCache]: Analyzing trace with hash -518022341, now seen corresponding path program 1 times [2021-03-13 00:04:47,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:47,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412883685] [2021-03-13 00:04:47,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:47,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-13 00:04:47,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412883685] [2021-03-13 00:04:47,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:47,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-13 00:04:47,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022995808] [2021-03-13 00:04:47,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-13 00:04:47,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:47,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-13 00:04:47,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-13 00:04:47,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:47,659 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:47,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-03-13 00:04:47,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:47,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:47,696 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-03-13 00:04:47,696 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:47,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:47,696 INFO L82 PathProgramCache]: Analyzing trace with hash 293600640, now seen corresponding path program 1 times [2021-03-13 00:04:47,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:47,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740132360] [2021-03-13 00:04:47,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:47,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-13 00:04:47,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740132360] [2021-03-13 00:04:47,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:47,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-13 00:04:47,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946212] [2021-03-13 00:04:47,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-13 00:04:47,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:47,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-13 00:04:47,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-13 00:04:47,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:47,720 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:47,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-03-13 00:04:47,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:47,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:47,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:47,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:47,775 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-03-13 00:04:47,775 INFO L428 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:47,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:47,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1606006378, now seen corresponding path program 1 times [2021-03-13 00:04:47,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:47,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429263607] [2021-03-13 00:04:47,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:47,803 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-03-13 00:04:47,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429263607] [2021-03-13 00:04:47,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:47,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-13 00:04:47,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623248354] [2021-03-13 00:04:47,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-13 00:04:47,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:47,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-13 00:04:47,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-13 00:04:47,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:47,804 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:47,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2021-03-13 00:04:47,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:47,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:47,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:47,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:47,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:47,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:47,903 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-03-13 00:04:47,903 INFO L428 AbstractCegarLoop]: === Iteration 4 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:47,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:47,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1620105279, now seen corresponding path program 1 times [2021-03-13 00:04:47,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:47,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783079929] [2021-03-13 00:04:47,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:47,941 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-03-13 00:04:47,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783079929] [2021-03-13 00:04:47,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:47,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-13 00:04:47,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421630359] [2021-03-13 00:04:47,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-13 00:04:47,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:47,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-13 00:04:47,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-13 00:04:47,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:47,942 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:47,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 00:04:47,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:47,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:47,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:47,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:48,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:48,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:48,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:48,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:48,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-03-13 00:04:48,106 INFO L428 AbstractCegarLoop]: === Iteration 5 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:48,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:48,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1676648757, now seen corresponding path program 1 times [2021-03-13 00:04:48,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:48,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281457263] [2021-03-13 00:04:48,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:48,154 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-03-13 00:04:48,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281457263] [2021-03-13 00:04:48,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:48,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-13 00:04:48,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989265815] [2021-03-13 00:04:48,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-13 00:04:48,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:48,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-13 00:04:48,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-13 00:04:48,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:48,156 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:48,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-03-13 00:04:48,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:48,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:48,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:48,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:48,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:48,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:48,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:48,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:48,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:48,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:48,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-03-13 00:04:48,383 INFO L428 AbstractCegarLoop]: === Iteration 6 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:48,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:48,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1483816866, now seen corresponding path program 1 times [2021-03-13 00:04:48,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:48,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535719714] [2021-03-13 00:04:48,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:48,442 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-03-13 00:04:48,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535719714] [2021-03-13 00:04:48,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:48,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-13 00:04:48,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210660633] [2021-03-13 00:04:48,442 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-13 00:04:48,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:48,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-13 00:04:48,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-13 00:04:48,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:48,443 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:48,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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) [2021-03-13 00:04:48,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:48,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:48,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:48,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:48,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:48,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:48,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:48,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:48,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:48,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:48,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:48,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:48,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-03-13 00:04:48,775 INFO L428 AbstractCegarLoop]: === Iteration 7 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:48,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:48,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1056887500, now seen corresponding path program 1 times [2021-03-13 00:04:48,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:48,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134464958] [2021-03-13 00:04:48,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:48,850 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-03-13 00:04:48,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134464958] [2021-03-13 00:04:48,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:48,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-13 00:04:48,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916928478] [2021-03-13 00:04:48,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-13 00:04:48,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:48,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-13 00:04:48,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-13 00:04:48,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:48,851 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:48,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2021-03-13 00:04:48,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:48,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:48,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:48,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:48,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:48,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:48,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:49,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:49,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:49,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:49,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:49,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:49,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:49,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:49,314 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-03-13 00:04:49,314 INFO L428 AbstractCegarLoop]: === Iteration 8 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:49,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:49,314 INFO L82 PathProgramCache]: Analyzing trace with hash 768756579, now seen corresponding path program 1 times [2021-03-13 00:04:49,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:49,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349185893] [2021-03-13 00:04:49,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:49,396 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-03-13 00:04:49,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349185893] [2021-03-13 00:04:49,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:49,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-13 00:04:49,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185797868] [2021-03-13 00:04:49,397 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-13 00:04:49,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:49,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-13 00:04:49,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-13 00:04:49,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:49,397 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:49,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 00:04:49,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:49,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:49,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:49,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:49,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:49,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:49,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:49,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:50,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:50,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:50,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:50,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:50,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:50,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:50,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:50,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:50,021 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-03-13 00:04:50,022 INFO L428 AbstractCegarLoop]: === Iteration 9 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:50,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:50,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1869801971, now seen corresponding path program 1 times [2021-03-13 00:04:50,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:50,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152969606] [2021-03-13 00:04:50,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:50,128 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-03-13 00:04:50,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152969606] [2021-03-13 00:04:50,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:50,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-13 00:04:50,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819074412] [2021-03-13 00:04:50,129 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-13 00:04:50,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:50,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-13 00:04:50,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-03-13 00:04:50,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:50,129 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:50,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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) [2021-03-13 00:04:50,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:50,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:50,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:50,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:50,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:50,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:50,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:50,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:50,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:51,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:51,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:51,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:51,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:51,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:51,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:51,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:51,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:51,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:04:51,483 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-03-13 00:04:51,483 INFO L428 AbstractCegarLoop]: === Iteration 10 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:51,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:51,483 INFO L82 PathProgramCache]: Analyzing trace with hash -813163292, now seen corresponding path program 1 times [2021-03-13 00:04:51,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:51,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440135888] [2021-03-13 00:04:51,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:51,607 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-03-13 00:04:51,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440135888] [2021-03-13 00:04:51,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:51,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-13 00:04:51,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378970734] [2021-03-13 00:04:51,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-13 00:04:51,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:51,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-13 00:04:51,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-03-13 00:04:51,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:51,608 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:51,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 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) [2021-03-13 00:04:51,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:51,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:51,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:51,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:51,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:51,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:51,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:51,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:51,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:04:51,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:53,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:53,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:53,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:53,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:53,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:53,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:53,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:53,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:53,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:04:53,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:04:53,186 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-03-13 00:04:53,186 INFO L428 AbstractCegarLoop]: === Iteration 11 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:53,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:53,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1408144018, now seen corresponding path program 1 times [2021-03-13 00:04:53,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:53,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892976260] [2021-03-13 00:04:53,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:53,296 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-03-13 00:04:53,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892976260] [2021-03-13 00:04:53,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:53,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-13 00:04:53,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185594583] [2021-03-13 00:04:53,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-13 00:04:53,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:53,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-13 00:04:53,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2021-03-13 00:04:53,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:53,297 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:53,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 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) [2021-03-13 00:04:53,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:53,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:53,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:53,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:53,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:53,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:53,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:53,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:53,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:04:53,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:04:53,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:55,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:04:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:04:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:04:55,825 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-03-13 00:04:55,825 INFO L428 AbstractCegarLoop]: === Iteration 12 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:04:55,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:04:55,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1423875104, now seen corresponding path program 1 times [2021-03-13 00:04:55,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:04:55,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226862083] [2021-03-13 00:04:55,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:04:55,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:04:55,967 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-03-13 00:04:55,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226862083] [2021-03-13 00:04:55,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:04:55,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-13 00:04:55,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832480134] [2021-03-13 00:04:55,968 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-13 00:04:55,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:04:55,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-13 00:04:55,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2021-03-13 00:04:55,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:04:55,968 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:04:55,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 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) [2021-03-13 00:04:55,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:04:55,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:04:55,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:04:55,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:04:55,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:04:55,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:04:55,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:04:55,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:04:55,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:04:55,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:04:55,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:04:55,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:05:00,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:05:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:05:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:05:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:05:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:05:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:05:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:05:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:05:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:05:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:05:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:05:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-13 00:05:00,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-03-13 00:05:00,503 INFO L428 AbstractCegarLoop]: === Iteration 13 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:05:00,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:05:00,504 INFO L82 PathProgramCache]: Analyzing trace with hash 2103019338, now seen corresponding path program 1 times [2021-03-13 00:05:00,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:05:00,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910459616] [2021-03-13 00:05:00,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:05:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:05:00,665 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-03-13 00:05:00,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910459616] [2021-03-13 00:05:00,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:05:00,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-13 00:05:00,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361162919] [2021-03-13 00:05:00,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-13 00:05:00,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:05:00,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-13 00:05:00,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-03-13 00:05:00,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:05:00,666 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:05:00,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 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) [2021-03-13 00:05:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:05:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:05:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:05:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:05:00,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:05:00,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:05:00,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:05:00,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:05:00,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:05:00,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:05:00,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:05:00,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-03-13 00:05:00,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:05:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:05:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:05:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:05:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:05:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:05:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:05:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:05:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:05:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:05:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:05:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:05:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-13 00:05:10,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-13 00:05:10,591 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-03-13 00:05:10,591 INFO L428 AbstractCegarLoop]: === Iteration 14 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:05:10,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:05:10,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1667414113, now seen corresponding path program 1 times [2021-03-13 00:05:10,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:05:10,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502186316] [2021-03-13 00:05:10,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:05:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:05:10,779 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-03-13 00:05:10,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502186316] [2021-03-13 00:05:10,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:05:10,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-13 00:05:10,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372579849] [2021-03-13 00:05:10,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-13 00:05:10,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:05:10,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-13 00:05:10,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-03-13 00:05:10,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:05:10,780 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:05:10,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 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) [2021-03-13 00:05:10,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:05:10,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:05:10,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:05:10,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:05:10,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:05:10,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:05:10,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:05:10,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:05:10,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:05:10,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:05:10,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:05:10,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-03-13 00:05:10,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-03-13 00:05:10,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:05:32,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:05:32,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:05:32,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:05:32,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:05:32,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:05:32,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:05:32,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:05:32,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:05:32,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:05:32,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:05:32,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:05:32,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-13 00:05:32,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-13 00:05:32,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-13 00:05:32,572 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-03-13 00:05:32,572 INFO L428 AbstractCegarLoop]: === Iteration 15 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:05:32,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:05:32,572 INFO L82 PathProgramCache]: Analyzing trace with hash -74886837, now seen corresponding path program 1 times [2021-03-13 00:05:32,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:05:32,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413705209] [2021-03-13 00:05:32,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:05:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:05:32,775 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-03-13 00:05:32,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413705209] [2021-03-13 00:05:32,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:05:32,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-03-13 00:05:32,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784170307] [2021-03-13 00:05:32,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-13 00:05:32,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:05:32,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-13 00:05:32,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-03-13 00:05:32,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:05:32,776 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:05:32,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 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) [2021-03-13 00:05:32,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:05:32,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:05:32,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:05:32,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:05:32,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:05:32,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:05:32,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:05:32,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:05:32,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:05:32,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:05:32,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:05:32,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-03-13 00:05:32,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-03-13 00:05:32,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-03-13 00:05:32,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:06:23,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:06:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:06:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:06:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:06:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:06:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:06:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:06:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:06:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:06:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:06:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:06:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-13 00:06:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-13 00:06:23,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-13 00:06:23,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-13 00:06:23,047 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-03-13 00:06:23,047 INFO L428 AbstractCegarLoop]: === Iteration 16 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-13 00:06:23,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-13 00:06:23,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1247342014, now seen corresponding path program 1 times [2021-03-13 00:06:23,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-13 00:06:23,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793752301] [2021-03-13 00:06:23,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-13 00:06:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-13 00:06:23,298 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-03-13 00:06:23,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793752301] [2021-03-13 00:06:23,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-13 00:06:23,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-13 00:06:23,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281548617] [2021-03-13 00:06:23,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-13 00:06:23,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-13 00:06:23,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-13 00:06:23,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2021-03-13 00:06:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-13 00:06:23,299 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-13 00:06:23,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-13 00:06:23,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-13 00:06:23,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-03-13 00:06:23,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-13 00:06:23,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-13 00:06:23,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-03-13 00:06:23,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-13 00:06:23,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-03-13 00:06:23,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-03-13 00:06:23,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-03-13 00:06:23,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-13 00:06:23,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-03-13 00:06:23,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-03-13 00:06:23,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-03-13 00:06:23,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-03-13 00:06:23,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-03-13 00:06:23,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.