/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/add-sub07.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-23 02:22:18,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-23 02:22:18,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-23 02:22:18,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-23 02:22:18,488 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf [2021-08-23 02:22:18,528 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-23 02:22:18,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-23 02:22:18,529 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-23 02:22:18,529 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-23 02:22:18,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-23 02:22:18,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-23 02:22:18,532 INFO L138 SettingsManager]: * Use SBE=true [2021-08-23 02:22:18,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-23 02:22:18,533 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-23 02:22:18,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-23 02:22:18,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-23 02:22:18,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-23 02:22:18,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-23 02:22:18,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-23 02:22:18,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-23 02:22:18,534 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-23 02:22:18,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-23 02:22:18,535 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-23 02:22:18,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-23 02:22:18,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-23 02:22:18,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-23 02:22:18,535 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-23 02:22:18,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-23 02:22:18,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-23 02:22:18,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-23 02:22:18,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-23 02:22:18,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-23 02:22:18,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-23 02:22:18,536 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-08-23 02:22:18,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-23 02:22:18,537 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-23 02:22:18,537 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-23 02:22:18,537 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-23 02:22:18,537 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-08-23 02:22:18,537 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-08-23 02:22:18,537 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-23 02:22:18,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-23 02:22:18,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-23 02:22:18,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-23 02:22:18,842 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-23 02:22:18,844 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-23 02:22:18,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/add-sub07.bpl [2021-08-23 02:22:18,845 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/add-sub07.bpl' [2021-08-23 02:22:18,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-23 02:22:18,866 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-23 02:22:18,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-23 02:22:18,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-23 02:22:18,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-23 02:22:18,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "add-sub07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 02:22:18" (1/1) ... [2021-08-23 02:22:18,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "add-sub07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 02:22:18" (1/1) ... [2021-08-23 02:22:18,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-23 02:22:18,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-23 02:22:18,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-23 02:22:18,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-23 02:22:18,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "add-sub07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 02:22:18" (1/1) ... [2021-08-23 02:22:18,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "add-sub07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 02:22:18" (1/1) ... [2021-08-23 02:22:18,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "add-sub07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 02:22:18" (1/1) ... [2021-08-23 02:22:18,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "add-sub07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 02:22:18" (1/1) ... [2021-08-23 02:22:18,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "add-sub07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 02:22:18" (1/1) ... [2021-08-23 02:22:18,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "add-sub07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 02:22:18" (1/1) ... [2021-08-23 02:22:18,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "add-sub07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 02:22:18" (1/1) ... [2021-08-23 02:22:18,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-23 02:22:18,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-23 02:22:18,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-23 02:22:18,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-23 02:22:18,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "add-sub07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 02:22:18" (1/1) ... [2021-08-23 02:22:18,925 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-23 02:22:18,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 02:22:18,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-23 02:22:18,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-23 02:22:18,981 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-23 02:22:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-23 02:22:18,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-23 02:22:18,981 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread given in one single declaration [2021-08-23 02:22:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure Thread [2021-08-23 02:22:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread [2021-08-23 02:22:18,982 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-23 02:22:19,101 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-23 02:22:19,102 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-23 02:22:19,103 INFO L202 PluginConnector]: Adding new model add-sub07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 02:22:19 BoogieIcfgContainer [2021-08-23 02:22:19,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-23 02:22:19,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-23 02:22:19,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-23 02:22:19,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-23 02:22:19,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "add-sub07.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.08 02:22:18" (1/2) ... [2021-08-23 02:22:19,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec49023 and model type add-sub07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 02:22:19, skipping insertion in model container [2021-08-23 02:22:19,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "add-sub07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 02:22:19" (2/2) ... [2021-08-23 02:22:19,112 INFO L111 eAbstractionObserver]: Analyzing ICFG add-sub07.bpl [2021-08-23 02:22:19,127 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-23 02:22:19,128 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-23 02:22:19,128 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-23 02:22:19,128 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-23 02:22:19,211 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,212 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,212 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,212 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,212 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,213 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,213 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,213 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,213 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,214 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,214 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,214 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,215 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,215 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,215 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,215 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,215 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,216 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,216 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,216 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,216 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,216 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,217 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,217 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,217 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork5_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,217 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork5_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,217 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork5_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,218 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork5_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,218 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork5_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,218 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork5_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,218 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork4_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,219 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork4_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,219 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork4_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,219 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork4_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,219 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork4_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,219 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork4_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,220 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork6_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,220 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork6_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,221 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork6_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,221 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork6_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,221 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork6_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,221 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork6_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,224 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,228 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,230 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,232 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,250 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork4_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,253 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork5_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,257 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork6_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-23 02:22:19,277 INFO L148 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2021-08-23 02:22:19,314 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-23 02:22:19,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 02:22:19,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-08-23 02:22:19,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-08-23 02:22:19,387 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-23 02:22:19,395 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-23 02:22:19,396 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-08-23 02:22:20,210 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2021-08-23 02:22:20,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 02:22:20,217 INFO L82 PathProgramCache]: Analyzing trace with hash -58511981, now seen corresponding path program 1 times [2021-08-23 02:22:20,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 02:22:20,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100562740] [2021-08-23 02:22:20,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 02:22:20,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 02:22:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 02:22:21,392 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-08-23 02:22:21,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 02:22:21,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100562740] [2021-08-23 02:22:21,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100562740] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:22:21,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449802763] [2021-08-23 02:22:21,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 02:22:21,394 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 02:22:21,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 02:22:21,395 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-23 02:22:21,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-23 02:22:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 02:22:21,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 123 conjunts are in the unsatisfiable core [2021-08-23 02:22:21,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-23 02:22:22,561 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-08-23 02:22:22,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449802763] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:22:22,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-23 02:22:22,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 21 [2021-08-23 02:22:22,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580654854] [2021-08-23 02:22:22,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-23 02:22:22,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 02:22:22,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-23 02:22:22,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2021-08-23 02:22:22,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:22:22,613 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 02:22:22,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 22 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-23 02:22:22,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:22:24,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:22:24,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-23 02:22:24,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-08-23 02:22:24,410 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2021-08-23 02:22:24,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 02:22:24,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1213170939, now seen corresponding path program 2 times [2021-08-23 02:22:24,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 02:22:24,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376476576] [2021-08-23 02:22:24,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 02:22:24,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 02:22:24,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 02:22:25,213 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-08-23 02:22:25,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 02:22:25,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376476576] [2021-08-23 02:22:25,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376476576] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:22:25,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475951740] [2021-08-23 02:22:25,214 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-23 02:22:25,214 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 02:22:25,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 02:22:25,221 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-23 02:22:25,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-23 02:22:25,412 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-23 02:22:25,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-23 02:22:25,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 123 conjunts are in the unsatisfiable core [2021-08-23 02:22:25,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-23 02:22:26,257 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-08-23 02:22:26,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475951740] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:22:26,258 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-23 02:22:26,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 22 [2021-08-23 02:22:26,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247521726] [2021-08-23 02:22:26,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-08-23 02:22:26,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 02:22:26,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-08-23 02:22:26,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2021-08-23 02:22:26,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:22:26,261 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 02:22:26,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-23 02:22:26,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:22:26,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:22:27,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:22:27,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:28,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-23 02:22:28,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 02:22:28,189 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2021-08-23 02:22:28,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 02:22:28,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1845773121, now seen corresponding path program 3 times [2021-08-23 02:22:28,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 02:22:28,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428457120] [2021-08-23 02:22:28,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 02:22:28,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 02:22:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 02:22:28,841 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 151 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-08-23 02:22:28,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 02:22:28,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428457120] [2021-08-23 02:22:28,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428457120] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:22:28,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881078489] [2021-08-23 02:22:28,842 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-23 02:22:28,842 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 02:22:28,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 02:22:28,845 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-23 02:22:28,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-23 02:22:29,147 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-08-23 02:22:29,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-23 02:22:29,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 123 conjunts are in the unsatisfiable core [2021-08-23 02:22:29,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-23 02:22:30,025 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 151 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-08-23 02:22:30,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881078489] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:22:30,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-23 02:22:30,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 22 [2021-08-23 02:22:30,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920971518] [2021-08-23 02:22:30,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-08-23 02:22:30,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 02:22:30,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-08-23 02:22:30,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2021-08-23 02:22:30,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:22:30,027 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 02:22:30,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.260869565217391) internal successors, (75), 23 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-23 02:22:30,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:22:30,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:30,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:22:31,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:22:31,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:31,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:31,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-23 02:22:31,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 02:22:31,781 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2021-08-23 02:22:31,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 02:22:31,781 INFO L82 PathProgramCache]: Analyzing trace with hash 691114163, now seen corresponding path program 4 times [2021-08-23 02:22:31,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 02:22:31,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397048031] [2021-08-23 02:22:31,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 02:22:31,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 02:22:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 02:22:32,461 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-08-23 02:22:32,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 02:22:32,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397048031] [2021-08-23 02:22:32,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397048031] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:22:32,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258807950] [2021-08-23 02:22:32,462 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-23 02:22:32,462 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 02:22:32,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 02:22:32,472 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-23 02:22:32,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-23 02:22:32,834 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-23 02:22:32,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-23 02:22:32,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 123 conjunts are in the unsatisfiable core [2021-08-23 02:22:32,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-23 02:22:33,579 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-08-23 02:22:33,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258807950] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:22:33,580 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-23 02:22:33,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 23 [2021-08-23 02:22:33,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631745790] [2021-08-23 02:22:33,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-23 02:22:33,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 02:22:33,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-23 02:22:33,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2021-08-23 02:22:33,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:22:33,582 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 02:22:33,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.125) internal successors, (75), 24 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-23 02:22:33,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:22:33,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:33,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:33,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:22:35,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:22:35,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:35,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:35,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:22:35,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-23 02:22:36,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 02:22:36,109 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2021-08-23 02:22:36,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 02:22:36,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1430609223, now seen corresponding path program 5 times [2021-08-23 02:22:36,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 02:22:36,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074357549] [2021-08-23 02:22:36,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 02:22:36,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 02:22:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 02:22:36,882 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-08-23 02:22:36,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 02:22:36,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074357549] [2021-08-23 02:22:36,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074357549] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:22:36,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192520191] [2021-08-23 02:22:36,883 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-23 02:22:36,883 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 02:22:36,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 02:22:36,889 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-23 02:22:36,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-23 02:22:37,358 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-08-23 02:22:37,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-23 02:22:37,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 135 conjunts are in the unsatisfiable core [2021-08-23 02:22:37,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-23 02:22:38,187 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-08-23 02:22:38,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192520191] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:22:38,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-23 02:22:38,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 23 [2021-08-23 02:22:38,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386895201] [2021-08-23 02:22:38,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-23 02:22:38,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 02:22:38,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-23 02:22:38,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2021-08-23 02:22:38,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:22:38,191 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 02:22:38,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 24 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-23 02:22:38,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:22:38,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:38,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:38,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:22:38,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:22:39,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:22:39,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:39,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:39,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:22:39,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:22:39,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-23 02:22:40,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 02:22:40,101 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2021-08-23 02:22:40,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 02:22:40,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1646107785, now seen corresponding path program 6 times [2021-08-23 02:22:40,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 02:22:40,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567247311] [2021-08-23 02:22:40,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 02:22:40,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 02:22:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 02:22:40,804 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 159 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-08-23 02:22:40,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 02:22:40,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567247311] [2021-08-23 02:22:40,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567247311] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:22:40,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954227092] [2021-08-23 02:22:40,805 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-23 02:22:40,805 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 02:22:40,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 02:22:40,817 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-23 02:22:40,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-23 02:22:41,380 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-08-23 02:22:41,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-23 02:22:41,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 131 conjunts are in the unsatisfiable core [2021-08-23 02:22:41,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-23 02:22:42,112 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 159 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-08-23 02:22:42,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954227092] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:22:42,112 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-23 02:22:42,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 24 [2021-08-23 02:22:42,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384723418] [2021-08-23 02:22:42,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-23 02:22:42,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 02:22:42,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-23 02:22:42,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2021-08-23 02:22:42,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:22:42,114 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 02:22:42,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.36) internal successors, (84), 25 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-23 02:22:42,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:22:42,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:42,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:42,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:22:42,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:22:42,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:22:43,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:22:43,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:43,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:43,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:22:43,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:22:43,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:22:43,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-23 02:22:44,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 02:22:44,056 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2021-08-23 02:22:44,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 02:22:44,056 INFO L82 PathProgramCache]: Analyzing trace with hash -2070784787, now seen corresponding path program 7 times [2021-08-23 02:22:44,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 02:22:44,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983485246] [2021-08-23 02:22:44,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 02:22:44,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 02:22:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 02:22:44,844 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 184 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-08-23 02:22:44,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 02:22:44,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983485246] [2021-08-23 02:22:44,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983485246] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:22:44,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533326817] [2021-08-23 02:22:44,845 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-23 02:22:44,845 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 02:22:44,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 02:22:44,846 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-23 02:22:44,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-23 02:22:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 02:22:45,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 143 conjunts are in the unsatisfiable core [2021-08-23 02:22:45,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-23 02:22:46,360 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 184 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-08-23 02:22:46,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533326817] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:22:46,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-23 02:22:46,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 24 [2021-08-23 02:22:46,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696516208] [2021-08-23 02:22:46,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-23 02:22:46,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 02:22:46,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-23 02:22:46,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2021-08-23 02:22:46,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:22:46,362 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 02:22:46,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.4) internal successors, (85), 25 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-23 02:22:46,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:22:46,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:46,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:46,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:22:46,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:22:46,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:22:46,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:22:54,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:22:54,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:54,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:54,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:22:54,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:22:54,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:22:54,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:22:54,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-23 02:22:54,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-08-23 02:22:54,333 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2021-08-23 02:22:54,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 02:22:54,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1375063663, now seen corresponding path program 1 times [2021-08-23 02:22:54,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 02:22:54,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21169563] [2021-08-23 02:22:54,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 02:22:54,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 02:22:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 02:22:54,830 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-08-23 02:22:54,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 02:22:54,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21169563] [2021-08-23 02:22:54,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21169563] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:22:54,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032553840] [2021-08-23 02:22:54,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 02:22:54,831 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 02:22:54,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 02:22:54,836 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-23 02:22:54,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-23 02:22:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 02:22:55,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 103 conjunts are in the unsatisfiable core [2021-08-23 02:22:55,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-23 02:22:56,299 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-08-23 02:22:56,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032553840] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:22:56,299 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-23 02:22:56,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2021-08-23 02:22:56,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26369604] [2021-08-23 02:22:56,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-08-23 02:22:56,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 02:22:56,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-08-23 02:22:56,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2021-08-23 02:22:56,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:22:56,301 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 02:22:56,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 19 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-23 02:22:56,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:22:56,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:56,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:56,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:22:56,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:22:56,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:22:56,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:22:56,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:22:57,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:22:57,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:57,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:57,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:22:57,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:22:57,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:22:57,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:22:57,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-23 02:22:57,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-23 02:22:57,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 02:22:57,429 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2021-08-23 02:22:57,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 02:22:57,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1729925101, now seen corresponding path program 2 times [2021-08-23 02:22:57,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 02:22:57,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421254639] [2021-08-23 02:22:57,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 02:22:57,430 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 02:22:57,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 02:22:57,951 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 107 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-08-23 02:22:57,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 02:22:57,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421254639] [2021-08-23 02:22:57,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421254639] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:22:57,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111433572] [2021-08-23 02:22:57,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-23 02:22:57,952 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 02:22:57,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 02:22:57,952 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-23 02:22:57,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-23 02:22:58,856 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-23 02:22:58,856 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-23 02:22:58,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 111 conjunts are in the unsatisfiable core [2021-08-23 02:22:58,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-23 02:22:59,544 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 107 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-08-23 02:22:59,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111433572] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:22:59,544 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-23 02:22:59,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2021-08-23 02:22:59,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23297418] [2021-08-23 02:22:59,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-08-23 02:22:59,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 02:22:59,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-08-23 02:22:59,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2021-08-23 02:22:59,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:22:59,547 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 02:22:59,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 19 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-23 02:22:59,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:22:59,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:59,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:22:59,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:22:59,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:22:59,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:22:59,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:22:59,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-23 02:22:59,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:23:00,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:23:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:23:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:23:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:23:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:23:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:23:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:23:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-23 02:23:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-23 02:23:00,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-08-23 02:23:00,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-08-23 02:23:00,607 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2021-08-23 02:23:00,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 02:23:00,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1087858849, now seen corresponding path program 3 times [2021-08-23 02:23:00,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 02:23:00,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468554978] [2021-08-23 02:23:00,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 02:23:00,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 02:23:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 02:23:01,118 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-08-23 02:23:01,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 02:23:01,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468554978] [2021-08-23 02:23:01,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468554978] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:23:01,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894271500] [2021-08-23 02:23:01,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-23 02:23:01,119 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 02:23:01,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 02:23:01,121 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-23 02:23:01,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-08-23 02:23:02,024 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-08-23 02:23:02,024 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-23 02:23:02,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 111 conjunts are in the unsatisfiable core [2021-08-23 02:23:02,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-23 02:23:02,672 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-08-23 02:23:02,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894271500] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:23:02,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-23 02:23:02,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 19 [2021-08-23 02:23:02,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421907107] [2021-08-23 02:23:02,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-23 02:23:02,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 02:23:02,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-23 02:23:02,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2021-08-23 02:23:02,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:23:02,674 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 02:23:02,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.5) internal successors, (70), 20 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-23 02:23:02,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:23:02,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:23:02,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:23:02,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:23:02,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:23:02,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:23:02,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:23:02,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-23 02:23:02,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-23 02:23:02,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:23:03,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:23:03,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:23:03,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:23:03,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:23:03,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:23:03,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:23:03,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:23:03,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-23 02:23:03,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-23 02:23:03,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-23 02:23:03,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-08-23 02:23:03,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-08-23 02:23:03,953 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2021-08-23 02:23:03,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 02:23:03,953 INFO L82 PathProgramCache]: Analyzing trace with hash 414984577, now seen corresponding path program 4 times [2021-08-23 02:23:03,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 02:23:03,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205778296] [2021-08-23 02:23:03,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 02:23:03,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 02:23:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 02:23:04,376 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-08-23 02:23:04,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 02:23:04,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205778296] [2021-08-23 02:23:04,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205778296] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:23:04,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846522376] [2021-08-23 02:23:04,377 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-23 02:23:04,377 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 02:23:04,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 02:23:04,381 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-23 02:23:04,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-08-23 02:23:05,346 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-23 02:23:05,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-23 02:23:05,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 91 conjunts are in the unsatisfiable core [2021-08-23 02:23:05,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-23 02:23:05,908 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-08-23 02:23:05,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846522376] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:23:05,908 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-23 02:23:05,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2021-08-23 02:23:05,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040583420] [2021-08-23 02:23:05,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-23 02:23:05,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 02:23:05,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-23 02:23:05,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2021-08-23 02:23:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:23:05,910 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 02:23:05,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-23 02:23:05,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:23:05,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:23:05,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:23:05,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:23:05,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:23:05,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:23:05,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:23:05,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-23 02:23:05,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-23 02:23:05,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-08-23 02:23:05,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:23:06,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:23:06,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:23:06,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:23:06,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:23:06,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:23:06,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:23:06,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:23:06,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-23 02:23:06,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-23 02:23:06,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-23 02:23:06,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-23 02:23:06,669 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-08-23 02:23:06,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-08-23 02:23:06,851 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2021-08-23 02:23:06,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-23 02:23:06,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1975697617, now seen corresponding path program 5 times [2021-08-23 02:23:06,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-23 02:23:06,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773477966] [2021-08-23 02:23:06,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-23 02:23:06,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-23 02:23:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-23 02:23:07,381 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-08-23 02:23:07,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-23 02:23:07,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773477966] [2021-08-23 02:23:07,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773477966] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:23:07,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619778453] [2021-08-23 02:23:07,382 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-23 02:23:07,382 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-23 02:23:07,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-23 02:23:07,383 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-23 02:23:07,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-08-23 02:23:08,425 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-08-23 02:23:08,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-23 02:23:08,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 91 conjunts are in the unsatisfiable core [2021-08-23 02:23:08,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-23 02:23:08,979 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-08-23 02:23:08,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619778453] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-23 02:23:08,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-23 02:23:08,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2021-08-23 02:23:08,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596411073] [2021-08-23 02:23:08,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-08-23 02:23:08,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-23 02:23:08,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-08-23 02:23:08,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2021-08-23 02:23:08,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:23:08,981 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-23 02:23:08,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 19 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-23 02:23:08,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:23:08,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:23:08,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:23:08,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:23:08,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:23:08,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:23:08,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:23:08,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-23 02:23:08,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-23 02:23:08,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-08-23 02:23:08,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-23 02:23:08,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-23 02:23:11,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-23 02:23:11,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:23:11,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-23 02:23:11,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:23:11,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-23 02:23:11,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:23:11,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-23 02:23:11,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-23 02:23:11,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-23 02:23:11,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-23 02:23:11,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-23 02:23:11,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-23 02:23:11,550 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-08-23 02:23:11,550 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-23 02:23:11,550 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-23 02:23:11,550 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-23 02:23:11,550 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-23 02:23:11,550 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION [2021-08-23 02:23:11,550 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION [2021-08-23 02:23:11,551 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6INUSE_VIOLATION [2021-08-23 02:23:11,571 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-08-23 02:23:11,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-08-23 02:23:11,763 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-23 02:23:11,763 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-23 02:23:11,765 INFO L202 PluginConnector]: Adding new model add-sub07.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.08 02:23:11 BasicIcfg [2021-08-23 02:23:11,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-23 02:23:11,766 INFO L168 Benchmark]: Toolchain (without parser) took 52899.08 ms. Allocated memory was 203.4 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 183.7 MB in the beginning and 1.1 GB in the end (delta: -879.4 MB). Peak memory consumption was 583.3 MB. Max. memory is 8.0 GB. [2021-08-23 02:23:11,766 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 203.4 MB. Free memory is still 184.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-23 02:23:11,766 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.83 ms. Allocated memory is still 203.4 MB. Free memory was 183.5 MB in the beginning and 182.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-23 02:23:11,767 INFO L168 Benchmark]: Boogie Preprocessor took 19.02 ms. Allocated memory is still 203.4 MB. Free memory was 182.1 MB in the beginning and 181.2 MB in the end (delta: 881.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-23 02:23:11,767 INFO L168 Benchmark]: RCFGBuilder took 186.48 ms. Allocated memory is still 203.4 MB. Free memory was 181.0 MB in the beginning and 171.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-08-23 02:23:11,767 INFO L168 Benchmark]: TraceAbstraction took 52659.99 ms. Allocated memory was 203.4 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 170.9 MB in the beginning and 1.1 GB in the end (delta: -892.2 MB). Peak memory consumption was 570.7 MB. Max. memory is 8.0 GB. [2021-08-23 02:23:11,769 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 203.4 MB. Free memory is still 184.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 24.83 ms. Allocated memory is still 203.4 MB. Free memory was 183.5 MB in the beginning and 182.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 19.02 ms. Allocated memory is still 203.4 MB. Free memory was 182.1 MB in the beginning and 181.2 MB in the end (delta: 881.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 186.48 ms. Allocated memory is still 203.4 MB. Free memory was 181.0 MB in the beginning and 171.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 52659.99 ms. Allocated memory was 203.4 MB in the beginning and 1.7 GB in the end (delta: 1.5 GB). Free memory was 170.9 MB in the beginning and 1.1 GB in the end (delta: -892.2 MB). Peak memory consumption was 570.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 878851, positive: 840426, positive conditional: 837782, positive unconditional: 2644, negative: 38425, negative conditional: 38419, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 840432, positive: 840426, positive conditional: 837782, positive unconditional: 2644, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 840432, positive: 840426, positive conditional: 837782, positive unconditional: 2644, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 840432, positive: 840426, positive conditional: 570817, positive unconditional: 269609, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 840432, positive: 840426, positive conditional: 328371, positive unconditional: 512055, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 840432, positive: 840426, positive conditional: 328371, positive unconditional: 512055, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2155, positive: 2149, positive conditional: 105, positive unconditional: 2044, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2155, positive: 1975, positive conditional: 0, positive unconditional: 1975, negative: 180, negative conditional: 0, negative unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 180, positive: 174, positive conditional: 0, positive unconditional: 174, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 513, positive: 491, positive conditional: 0, positive unconditional: 491, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 840432, positive: 838277, positive conditional: 328266, positive unconditional: 510011, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2155, unknown conditional: 105, unknown unconditional: 2050] , Statistics on independence cache: Total cache size (in pairs): 2155, Positive cache size: 2149, Positive conditional cache size: 105, Positive unconditional cache size: 2044, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Eliminated conditions: 242446, Maximal queried relation: 0, Independence queries for same thread: 38419 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 1350, Number of persistent set computation: 8669, Number of trivial persistent sets: 311, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2650, positive: 2644, positive conditional: 0, positive unconditional: 2644, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 878851, positive: 840426, positive conditional: 837782, positive unconditional: 2644, negative: 38425, negative conditional: 38419, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 840432, positive: 840426, positive conditional: 837782, positive unconditional: 2644, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 840432, positive: 840426, positive conditional: 837782, positive unconditional: 2644, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 840432, positive: 840426, positive conditional: 570817, positive unconditional: 269609, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 840432, positive: 840426, positive conditional: 328371, positive unconditional: 512055, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 840432, positive: 840426, positive conditional: 328371, positive unconditional: 512055, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2155, positive: 2149, positive conditional: 105, positive unconditional: 2044, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2155, positive: 1975, positive conditional: 0, positive unconditional: 1975, negative: 180, negative conditional: 0, negative unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 180, positive: 174, positive conditional: 0, positive unconditional: 174, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 513, positive: 491, positive conditional: 0, positive unconditional: 491, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 840432, positive: 838277, positive conditional: 328266, positive unconditional: 510011, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2155, unknown conditional: 105, unknown unconditional: 2050] , Statistics on independence cache: Total cache size (in pairs): 2155, Positive cache size: 2149, Positive conditional cache size: 105, Positive unconditional cache size: 2044, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Eliminated conditions: 242446, Maximal queried relation: 0, Independence queries for same thread: 38419 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 24]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 58 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 52450.7ms, OverallIterations: 12, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 25.6ms, PartialOrderReductionTime: 25273.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 273, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 196.7ms SsaConstructionTime, 676.8ms SatisfiabilityAnalysisTime, 16710.9ms InterpolantComputationTime, 2610 NumberOfCodeBlocks, 2610 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 2586 ConstructedInterpolants, 0 QuantifiedInterpolants, 23214 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3203 ConjunctsInSsa, 1408 ConjunctsInUnsatCore, 24 InterpolantComputations, 0 PerfectInterpolantSequences, 1684/4898 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-23 02:23:11,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-08-23 02:23:12,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...