/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/add-sub08.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8b99979fc9bd30b823d307a67cb055caa4790482-8b99979 [2021-06-30 11:47:31,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-30 11:47:31,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-30 11:47:31,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-30 11:47:31,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-30 11:47:31,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-30 11:47:31,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-30 11:47:31,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-30 11:47:31,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-30 11:47:31,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-30 11:47:31,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-30 11:47:31,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-30 11:47:31,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-30 11:47:31,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-30 11:47:31,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-30 11:47:31,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-30 11:47:31,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-30 11:47:31,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-30 11:47:31,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-30 11:47:31,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-30 11:47:31,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-30 11:47:31,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-30 11:47:31,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-30 11:47:31,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-30 11:47:31,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-30 11:47:31,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-30 11:47:31,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-30 11:47:31,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-30 11:47:31,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-30 11:47:31,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-30 11:47:31,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-30 11:47:31,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-30 11:47:31,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-30 11:47:31,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-30 11:47:31,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-30 11:47:31,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-30 11:47:31,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-30 11:47:31,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-30 11:47:31,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-30 11:47:31,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-30 11:47:31,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-30 11:47:31,408 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-30 11:47:31,446 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-30 11:47:31,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-30 11:47:31,447 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-30 11:47:31,448 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-30 11:47:31,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-30 11:47:31,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-30 11:47:31,450 INFO L138 SettingsManager]: * Use SBE=true [2021-06-30 11:47:31,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-30 11:47:31,451 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-30 11:47:31,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-30 11:47:31,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-30 11:47:31,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-30 11:47:31,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-30 11:47:31,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-30 11:47:31,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-30 11:47:31,464 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-30 11:47:31,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-30 11:47:31,464 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-30 11:47:31,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-30 11:47:31,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-30 11:47:31,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-30 11:47:31,465 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-30 11:47:31,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-30 11:47:31,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-30 11:47:31,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-30 11:47:31,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-30 11:47:31,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-30 11:47:31,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-30 11:47:31,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-30 11:47:31,466 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-30 11:47:31,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-30 11:47:31,466 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-30 11:47:31,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-30 11:47:31,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-30 11:47:31,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-30 11:47:31,807 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-30 11:47:31,807 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-30 11:47:31,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/add-sub08.bpl [2021-06-30 11:47:31,808 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/add-sub08.bpl' [2021-06-30 11:47:31,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-30 11:47:31,834 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-30 11:47:31,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-30 11:47:31,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-30 11:47:31,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-30 11:47:31,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "add-sub08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:47:31" (1/1) ... [2021-06-30 11:47:31,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "add-sub08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:47:31" (1/1) ... [2021-06-30 11:47:31,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-30 11:47:31,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-30 11:47:31,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-30 11:47:31,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-30 11:47:31,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "add-sub08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:47:31" (1/1) ... [2021-06-30 11:47:31,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "add-sub08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:47:31" (1/1) ... [2021-06-30 11:47:31,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "add-sub08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:47:31" (1/1) ... [2021-06-30 11:47:31,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "add-sub08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:47:31" (1/1) ... [2021-06-30 11:47:31,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "add-sub08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:47:31" (1/1) ... [2021-06-30 11:47:31,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "add-sub08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:47:31" (1/1) ... [2021-06-30 11:47:31,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "add-sub08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:47:31" (1/1) ... [2021-06-30 11:47:31,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-30 11:47:31,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-30 11:47:31,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-30 11:47:31,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-30 11:47:31,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "add-sub08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:47:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-30 11:47:31,952 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-30 11:47:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-30 11:47:31,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-30 11:47:31,954 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread given in one single declaration [2021-06-30 11:47:31,954 INFO L130 BoogieDeclarations]: Found specification of procedure Thread [2021-06-30 11:47:31,954 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread [2021-06-30 11:47:31,955 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-30 11:47:32,124 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-30 11:47:32,125 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-06-30 11:47:32,127 INFO L202 PluginConnector]: Adding new model add-sub08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 11:47:32 BoogieIcfgContainer [2021-06-30 11:47:32,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-30 11:47:32,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-30 11:47:32,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-30 11:47:32,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-30 11:47:32,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "add-sub08.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 11:47:31" (1/2) ... [2021-06-30 11:47:32,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4065f0 and model type add-sub08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.06 11:47:32, skipping insertion in model container [2021-06-30 11:47:32,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "add-sub08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 11:47:32" (2/2) ... [2021-06-30 11:47:32,135 INFO L111 eAbstractionObserver]: Analyzing ICFG add-sub08.bpl [2021-06-30 11:47:32,144 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-30 11:47:32,144 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-30 11:47:32,145 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-30 11:47:32,146 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-30 11:47:32,186 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,194 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,194 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,195 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,195 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,195 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,195 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,195 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,196 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,196 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,196 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,196 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,197 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,197 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,197 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,197 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,197 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,198 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,198 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,198 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,198 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,199 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,199 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,199 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,199 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork5_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,199 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork5_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,200 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork5_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,200 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork5_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,200 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork5_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,210 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork5_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,211 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork4_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,211 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork4_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,211 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork4_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,212 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork4_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,212 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork4_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,212 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork4_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,212 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork7_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,213 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork7_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,213 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork7_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,213 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork7_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,213 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork7_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,213 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork7_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,214 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork6_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,214 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork6_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,214 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork6_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,214 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork6_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,214 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork6_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,215 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork6_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,217 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,220 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,222 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,225 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,242 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork4_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,245 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork5_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,250 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork6_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,253 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork7_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 11:47:32,290 INFO L149 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2021-06-30 11:47:32,314 INFO L255 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-06-30 11:47:32,335 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-30 11:47:32,335 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-30 11:47:32,335 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-30 11:47:32,336 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-30 11:47:32,336 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-30 11:47:32,336 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-30 11:47:32,336 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-30 11:47:32,336 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-30 11:47:32,356 INFO L112 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 60 transitions, 184 flow [2021-06-30 11:48:24,476 INFO L134 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 109230 states, 109227 states have (on average 7.866663004568467) internal successors, (859252), 109227 states have internal predecessors, (859252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:48:24,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 109230 states, 109227 states have (on average 7.866663004568467) internal successors, (859252), 109227 states have internal predecessors, (859252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:48:26,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-06-30 11:48:26,220 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 11:48:26,221 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 11:48:26,222 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 11:48:26,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 11:48:26,231 INFO L82 PathProgramCache]: Analyzing trace with hash -668835036, now seen corresponding path program 1 times [2021-06-30 11:48:26,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 11:48:26,240 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024425661] [2021-06-30 11:48:26,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 11:48:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 11:48:26,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-30 11:48:26,617 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 11:48:26,617 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024425661] [2021-06-30 11:48:26,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024425661] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 11:48:26,618 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 11:48:26,618 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-30 11:48:26,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566334920] [2021-06-30 11:48:26,623 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-30 11:48:26,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 11:48:26,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-30 11:48:26,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-30 11:48:26,866 INFO L87 Difference]: Start difference. First operand has 109230 states, 109227 states have (on average 7.866663004568467) internal successors, (859252), 109227 states have internal predecessors, (859252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:48:29,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 11:48:29,476 INFO L93 Difference]: Finished difference Result 122348 states and 960947 transitions. [2021-06-30 11:48:29,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-30 11:48:29,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-06-30 11:48:29,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 11:48:31,336 INFO L225 Difference]: With dead ends: 122348 [2021-06-30 11:48:31,336 INFO L226 Difference]: Without dead ends: 122339 [2021-06-30 11:48:31,337 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-30 11:48:50,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122339 states. [2021-06-30 11:48:56,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122339 to 109984. [2021-06-30 11:48:56,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109984 states, 109983 states have (on average 7.86340616277061) internal successors, (864841), 109983 states have internal predecessors, (864841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:48:58,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109984 states to 109984 states and 864841 transitions. [2021-06-30 11:48:58,684 INFO L78 Accepts]: Start accepts. Automaton has 109984 states and 864841 transitions. Word has length 26 [2021-06-30 11:48:58,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 11:48:58,685 INFO L482 AbstractCegarLoop]: Abstraction has 109984 states and 864841 transitions. [2021-06-30 11:48:58,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:48:58,686 INFO L276 IsEmpty]: Start isEmpty. Operand 109984 states and 864841 transitions. [2021-06-30 11:48:59,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-30 11:48:59,616 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 11:48:59,616 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 11:48:59,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-30 11:48:59,617 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 11:48:59,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 11:48:59,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1980668150, now seen corresponding path program 1 times [2021-06-30 11:48:59,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 11:48:59,618 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579131188] [2021-06-30 11:48:59,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 11:48:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 11:48:59,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 11:48:59,729 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 11:48:59,729 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579131188] [2021-06-30 11:48:59,729 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579131188] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 11:48:59,730 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 11:48:59,730 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-30 11:48:59,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442198031] [2021-06-30 11:48:59,731 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-30 11:48:59,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 11:48:59,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-30 11:48:59,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 11:48:59,733 INFO L87 Difference]: Start difference. First operand 109984 states and 864841 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:49:02,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 11:49:02,244 INFO L93 Difference]: Finished difference Result 127110 states and 998059 transitions. [2021-06-30 11:49:02,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-30 11:49:02,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-30 11:49:02,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 11:49:03,835 INFO L225 Difference]: With dead ends: 127110 [2021-06-30 11:49:03,835 INFO L226 Difference]: Without dead ends: 127093 [2021-06-30 11:49:03,836 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.5ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 11:49:25,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127093 states. [2021-06-30 11:49:30,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127093 to 110614. [2021-06-30 11:49:31,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110614 states, 110613 states have (on average 7.862122896947014) internal successors, (869653), 110613 states have internal predecessors, (869653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:49:33,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110614 states to 110614 states and 869653 transitions. [2021-06-30 11:49:33,523 INFO L78 Accepts]: Start accepts. Automaton has 110614 states and 869653 transitions. Word has length 29 [2021-06-30 11:49:33,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 11:49:33,537 INFO L482 AbstractCegarLoop]: Abstraction has 110614 states and 869653 transitions. [2021-06-30 11:49:33,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:49:33,538 INFO L276 IsEmpty]: Start isEmpty. Operand 110614 states and 869653 transitions. [2021-06-30 11:49:34,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-30 11:49:34,318 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 11:49:34,318 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 11:49:34,318 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-30 11:49:34,319 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 11:49:34,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 11:49:34,320 INFO L82 PathProgramCache]: Analyzing trace with hash -252960114, now seen corresponding path program 1 times [2021-06-30 11:49:34,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 11:49:34,320 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658965756] [2021-06-30 11:49:34,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 11:49:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 11:49:34,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 11:49:34,437 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 11:49:34,437 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658965756] [2021-06-30 11:49:34,437 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658965756] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 11:49:34,437 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 11:49:34,438 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-30 11:49:34,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642017144] [2021-06-30 11:49:34,438 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-30 11:49:34,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 11:49:34,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-30 11:49:34,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 11:49:34,439 INFO L87 Difference]: Start difference. First operand 110614 states and 869653 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:49:37,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 11:49:37,418 INFO L93 Difference]: Finished difference Result 128078 states and 1005020 transitions. [2021-06-30 11:49:37,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-30 11:49:37,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-30 11:49:37,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 11:49:39,976 INFO L225 Difference]: With dead ends: 128078 [2021-06-30 11:49:39,976 INFO L226 Difference]: Without dead ends: 128065 [2021-06-30 11:49:39,976 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.4ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 11:50:04,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128065 states. [2021-06-30 11:50:09,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128065 to 111691. [2021-06-30 11:50:10,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111691 states, 111690 states have (on average 7.86444623511505) internal successors, (878380), 111690 states have internal predecessors, (878380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:50:11,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111691 states to 111691 states and 878380 transitions. [2021-06-30 11:50:11,951 INFO L78 Accepts]: Start accepts. Automaton has 111691 states and 878380 transitions. Word has length 29 [2021-06-30 11:50:11,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 11:50:11,951 INFO L482 AbstractCegarLoop]: Abstraction has 111691 states and 878380 transitions. [2021-06-30 11:50:11,951 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:50:11,951 INFO L276 IsEmpty]: Start isEmpty. Operand 111691 states and 878380 transitions. [2021-06-30 11:50:12,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-30 11:50:12,889 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 11:50:12,890 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 11:50:12,890 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-30 11:50:12,905 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 11:50:12,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 11:50:12,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1206166038, now seen corresponding path program 1 times [2021-06-30 11:50:12,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 11:50:12,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549112609] [2021-06-30 11:50:12,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 11:50:12,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 11:50:12,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 11:50:12,977 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 11:50:12,977 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549112609] [2021-06-30 11:50:12,977 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549112609] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 11:50:12,978 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 11:50:12,978 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-30 11:50:12,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428403420] [2021-06-30 11:50:12,978 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-30 11:50:12,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 11:50:12,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-30 11:50:12,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 11:50:12,980 INFO L87 Difference]: Start difference. First operand 111691 states and 878380 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:50:15,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 11:50:15,235 INFO L93 Difference]: Finished difference Result 130298 states and 1022326 transitions. [2021-06-30 11:50:15,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-30 11:50:15,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-30 11:50:15,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 11:50:17,118 INFO L225 Difference]: With dead ends: 130298 [2021-06-30 11:50:17,119 INFO L226 Difference]: Without dead ends: 130273 [2021-06-30 11:50:17,120 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.0ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 11:50:40,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130273 states. [2021-06-30 11:50:46,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130273 to 112986. [2021-06-30 11:50:47,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112986 states, 112985 states have (on average 7.866371642253396) internal successors, (888782), 112985 states have internal predecessors, (888782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:50:48,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112986 states to 112986 states and 888782 transitions. [2021-06-30 11:50:48,813 INFO L78 Accepts]: Start accepts. Automaton has 112986 states and 888782 transitions. Word has length 29 [2021-06-30 11:50:48,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 11:50:48,814 INFO L482 AbstractCegarLoop]: Abstraction has 112986 states and 888782 transitions. [2021-06-30 11:50:48,814 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:50:48,814 INFO L276 IsEmpty]: Start isEmpty. Operand 112986 states and 888782 transitions. [2021-06-30 11:50:49,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-30 11:50:49,326 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 11:50:49,326 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 11:50:49,326 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-30 11:50:49,326 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 11:50:49,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 11:50:49,327 INFO L82 PathProgramCache]: Analyzing trace with hash 410426826, now seen corresponding path program 1 times [2021-06-30 11:50:49,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 11:50:49,327 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737688390] [2021-06-30 11:50:49,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 11:50:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 11:50:49,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 11:50:49,382 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 11:50:49,383 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737688390] [2021-06-30 11:50:49,383 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737688390] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 11:50:49,383 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 11:50:49,383 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-30 11:50:49,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093467060] [2021-06-30 11:50:49,383 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-30 11:50:49,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 11:50:49,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-30 11:50:49,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 11:50:49,384 INFO L87 Difference]: Start difference. First operand 112986 states and 888782 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:50:51,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 11:50:51,882 INFO L93 Difference]: Finished difference Result 131740 states and 1033785 transitions. [2021-06-30 11:50:51,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-30 11:50:51,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-30 11:50:51,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 11:50:54,081 INFO L225 Difference]: With dead ends: 131740 [2021-06-30 11:50:54,081 INFO L226 Difference]: Without dead ends: 131711 [2021-06-30 11:50:54,082 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.3ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 11:51:17,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131711 states. [2021-06-30 11:51:22,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131711 to 114235. [2021-06-30 11:51:22,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114235 states, 114234 states have (on average 7.867333718507624) internal successors, (898717), 114234 states have internal predecessors, (898717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:51:24,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114235 states to 114235 states and 898717 transitions. [2021-06-30 11:51:24,310 INFO L78 Accepts]: Start accepts. Automaton has 114235 states and 898717 transitions. Word has length 29 [2021-06-30 11:51:24,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 11:51:24,310 INFO L482 AbstractCegarLoop]: Abstraction has 114235 states and 898717 transitions. [2021-06-30 11:51:24,310 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:51:24,310 INFO L276 IsEmpty]: Start isEmpty. Operand 114235 states and 898717 transitions. [2021-06-30 11:51:24,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-30 11:51:24,853 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 11:51:24,853 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 11:51:24,853 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-30 11:51:24,854 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 11:51:24,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 11:51:24,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1732347338, now seen corresponding path program 1 times [2021-06-30 11:51:24,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 11:51:24,854 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940953281] [2021-06-30 11:51:24,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 11:51:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 11:51:24,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 11:51:24,908 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 11:51:24,909 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940953281] [2021-06-30 11:51:24,910 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940953281] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 11:51:24,910 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 11:51:24,910 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-30 11:51:24,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341001887] [2021-06-30 11:51:24,910 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-30 11:51:24,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 11:51:24,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-30 11:51:24,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 11:51:24,911 INFO L87 Difference]: Start difference. First operand 114235 states and 898717 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:51:27,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 11:51:27,419 INFO L93 Difference]: Finished difference Result 133017 states and 1044148 transitions. [2021-06-30 11:51:27,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-30 11:51:27,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-30 11:51:27,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 11:51:29,741 INFO L225 Difference]: With dead ends: 133017 [2021-06-30 11:51:29,741 INFO L226 Difference]: Without dead ends: 132984 [2021-06-30 11:51:29,742 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.7ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 11:51:53,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132984 states. [2021-06-30 11:51:58,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132984 to 115393. [2021-06-30 11:51:59,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115393 states, 115392 states have (on average 7.867451816417082) internal successors, (907841), 115392 states have internal predecessors, (907841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:52:00,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115393 states to 115393 states and 907841 transitions. [2021-06-30 11:52:00,954 INFO L78 Accepts]: Start accepts. Automaton has 115393 states and 907841 transitions. Word has length 29 [2021-06-30 11:52:00,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 11:52:00,954 INFO L482 AbstractCegarLoop]: Abstraction has 115393 states and 907841 transitions. [2021-06-30 11:52:00,954 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:52:00,954 INFO L276 IsEmpty]: Start isEmpty. Operand 115393 states and 907841 transitions. [2021-06-30 11:52:01,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-30 11:52:01,510 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 11:52:01,510 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 11:52:01,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-30 11:52:01,510 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 11:52:01,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 11:52:01,510 INFO L82 PathProgramCache]: Analyzing trace with hash -965742282, now seen corresponding path program 1 times [2021-06-30 11:52:01,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 11:52:01,511 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376917824] [2021-06-30 11:52:01,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 11:52:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 11:52:01,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 11:52:01,546 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 11:52:01,546 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376917824] [2021-06-30 11:52:01,546 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376917824] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 11:52:01,547 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 11:52:01,547 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-30 11:52:01,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640919297] [2021-06-30 11:52:01,547 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-30 11:52:01,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 11:52:01,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-30 11:52:01,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 11:52:01,548 INFO L87 Difference]: Start difference. First operand 115393 states and 907841 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:52:04,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 11:52:04,058 INFO L93 Difference]: Finished difference Result 132753 states and 1042370 transitions. [2021-06-30 11:52:04,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-30 11:52:04,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-30 11:52:04,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 11:52:06,184 INFO L225 Difference]: With dead ends: 132753 [2021-06-30 11:52:06,185 INFO L226 Difference]: Without dead ends: 132711 [2021-06-30 11:52:06,185 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.3ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 11:52:29,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132711 states. [2021-06-30 11:52:34,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132711 to 116233. [2021-06-30 11:52:34,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116233 states, 116232 states have (on average 7.86588030834882) internal successors, (914267), 116232 states have internal predecessors, (914267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:52:36,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116233 states to 116233 states and 914267 transitions. [2021-06-30 11:52:36,663 INFO L78 Accepts]: Start accepts. Automaton has 116233 states and 914267 transitions. Word has length 29 [2021-06-30 11:52:36,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 11:52:36,663 INFO L482 AbstractCegarLoop]: Abstraction has 116233 states and 914267 transitions. [2021-06-30 11:52:36,663 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:52:36,663 INFO L276 IsEmpty]: Start isEmpty. Operand 116233 states and 914267 transitions. [2021-06-30 11:52:37,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-30 11:52:37,248 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 11:52:37,248 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 11:52:37,248 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-30 11:52:37,248 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 11:52:37,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 11:52:37,249 INFO L82 PathProgramCache]: Analyzing trace with hash 2011481248, now seen corresponding path program 1 times [2021-06-30 11:52:37,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 11:52:37,249 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466465028] [2021-06-30 11:52:37,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 11:52:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 11:52:37,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 11:52:37,312 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 11:52:37,312 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466465028] [2021-06-30 11:52:37,312 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466465028] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 11:52:37,312 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 11:52:37,312 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-30 11:52:37,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545068309] [2021-06-30 11:52:37,312 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-30 11:52:37,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 11:52:37,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-30 11:52:37,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 11:52:37,313 INFO L87 Difference]: Start difference. First operand 116233 states and 914267 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:52:39,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 11:52:39,955 INFO L93 Difference]: Finished difference Result 134912 states and 1059536 transitions. [2021-06-30 11:52:39,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-30 11:52:39,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-30 11:52:39,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 11:52:42,172 INFO L225 Difference]: With dead ends: 134912 [2021-06-30 11:52:42,172 INFO L226 Difference]: Without dead ends: 134875 [2021-06-30 11:52:42,172 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.3ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 11:53:06,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134875 states. [2021-06-30 11:53:11,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134875 to 117210. [2021-06-30 11:53:11,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117210 states, 117209 states have (on average 7.8659744558864935) internal successors, (921963), 117209 states have internal predecessors, (921963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:53:13,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117210 states to 117210 states and 921963 transitions. [2021-06-30 11:53:13,669 INFO L78 Accepts]: Start accepts. Automaton has 117210 states and 921963 transitions. Word has length 29 [2021-06-30 11:53:13,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 11:53:13,671 INFO L482 AbstractCegarLoop]: Abstraction has 117210 states and 921963 transitions. [2021-06-30 11:53:13,672 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:53:13,672 INFO L276 IsEmpty]: Start isEmpty. Operand 117210 states and 921963 transitions. [2021-06-30 11:53:14,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-30 11:53:14,224 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 11:53:14,224 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 11:53:14,224 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-30 11:53:14,224 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 11:53:14,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 11:53:14,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1919612764, now seen corresponding path program 1 times [2021-06-30 11:53:14,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 11:53:14,225 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329038844] [2021-06-30 11:53:14,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 11:53:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 11:53:14,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 11:53:14,260 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 11:53:14,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329038844] [2021-06-30 11:53:14,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329038844] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 11:53:14,261 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 11:53:14,261 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-30 11:53:14,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412405901] [2021-06-30 11:53:14,261 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-30 11:53:14,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 11:53:14,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-30 11:53:14,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 11:53:14,262 INFO L87 Difference]: Start difference. First operand 117210 states and 921963 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:53:16,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 11:53:16,704 INFO L93 Difference]: Finished difference Result 136769 states and 1073512 transitions. [2021-06-30 11:53:16,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-30 11:53:16,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-30 11:53:16,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 11:53:18,867 INFO L225 Difference]: With dead ends: 136769 [2021-06-30 11:53:18,867 INFO L226 Difference]: Without dead ends: 136748 [2021-06-30 11:53:18,867 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 11:53:43,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136748 states. [2021-06-30 11:53:48,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136748 to 118269. [2021-06-30 11:53:49,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118269 states, 118268 states have (on average 7.86594006831941) internal successors, (930289), 118268 states have internal predecessors, (930289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:53:51,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118269 states to 118269 states and 930289 transitions. [2021-06-30 11:53:51,061 INFO L78 Accepts]: Start accepts. Automaton has 118269 states and 930289 transitions. Word has length 29 [2021-06-30 11:53:51,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 11:53:51,061 INFO L482 AbstractCegarLoop]: Abstraction has 118269 states and 930289 transitions. [2021-06-30 11:53:51,061 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:53:51,061 INFO L276 IsEmpty]: Start isEmpty. Operand 118269 states and 930289 transitions. [2021-06-30 11:53:51,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-06-30 11:53:51,647 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 11:53:51,647 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 11:53:51,647 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-30 11:53:51,647 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 11:53:51,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 11:53:51,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1165832984, now seen corresponding path program 1 times [2021-06-30 11:53:51,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 11:53:51,648 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463917984] [2021-06-30 11:53:51,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 11:53:51,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 11:53:51,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 11:53:51,703 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 11:53:51,703 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463917984] [2021-06-30 11:53:51,703 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463917984] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 11:53:51,703 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 11:53:51,703 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-30 11:53:51,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359104841] [2021-06-30 11:53:51,704 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 11:53:51,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 11:53:51,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 11:53:51,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 11:53:51,705 INFO L87 Difference]: Start difference. First operand 118269 states and 930289 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:53:54,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 11:53:54,338 INFO L93 Difference]: Finished difference Result 141232 states and 1108253 transitions. [2021-06-30 11:53:54,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 11:53:54,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-06-30 11:53:54,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 11:53:56,837 INFO L225 Difference]: With dead ends: 141232 [2021-06-30 11:53:56,838 INFO L226 Difference]: Without dead ends: 141211 [2021-06-30 11:53:56,839 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.9ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 11:54:20,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141211 states. [2021-06-30 11:54:26,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141211 to 118507. [2021-06-30 11:54:26,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118507 states, 118506 states have (on average 7.862994278770695) internal successors, (931812), 118506 states have internal predecessors, (931812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:54:28,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118507 states to 118507 states and 931812 transitions. [2021-06-30 11:54:28,379 INFO L78 Accepts]: Start accepts. Automaton has 118507 states and 931812 transitions. Word has length 32 [2021-06-30 11:54:28,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 11:54:28,380 INFO L482 AbstractCegarLoop]: Abstraction has 118507 states and 931812 transitions. [2021-06-30 11:54:28,380 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:54:28,380 INFO L276 IsEmpty]: Start isEmpty. Operand 118507 states and 931812 transitions. [2021-06-30 11:54:29,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-06-30 11:54:29,308 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 11:54:29,308 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 11:54:29,308 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-30 11:54:29,308 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 11:54:29,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 11:54:29,309 INFO L82 PathProgramCache]: Analyzing trace with hash 293293168, now seen corresponding path program 1 times [2021-06-30 11:54:29,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 11:54:29,309 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925362853] [2021-06-30 11:54:29,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 11:54:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 11:54:29,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 11:54:29,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 11:54:29,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925362853] [2021-06-30 11:54:29,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925362853] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 11:54:29,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 11:54:29,366 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-30 11:54:29,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412642706] [2021-06-30 11:54:29,366 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 11:54:29,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 11:54:29,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 11:54:29,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 11:54:29,367 INFO L87 Difference]: Start difference. First operand 118507 states and 931812 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:54:31,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 11:54:31,647 INFO L93 Difference]: Finished difference Result 143609 states and 1126437 transitions. [2021-06-30 11:54:31,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 11:54:31,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-06-30 11:54:31,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 11:54:34,062 INFO L225 Difference]: With dead ends: 143609 [2021-06-30 11:54:34,062 INFO L226 Difference]: Without dead ends: 143576 [2021-06-30 11:54:34,063 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 11:54:58,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143576 states. [2021-06-30 11:55:03,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143576 to 119730. [2021-06-30 11:55:03,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119730 states, 119729 states have (on average 7.8675425335549445) internal successors, (941973), 119729 states have internal predecessors, (941973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:55:06,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119730 states to 119730 states and 941973 transitions. [2021-06-30 11:55:06,045 INFO L78 Accepts]: Start accepts. Automaton has 119730 states and 941973 transitions. Word has length 32 [2021-06-30 11:55:06,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 11:55:06,046 INFO L482 AbstractCegarLoop]: Abstraction has 119730 states and 941973 transitions. [2021-06-30 11:55:06,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:55:06,046 INFO L276 IsEmpty]: Start isEmpty. Operand 119730 states and 941973 transitions. [2021-06-30 11:55:06,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-06-30 11:55:06,670 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 11:55:06,670 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 11:55:06,670 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-30 11:55:06,671 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 11:55:06,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 11:55:06,671 INFO L82 PathProgramCache]: Analyzing trace with hash -502446044, now seen corresponding path program 1 times [2021-06-30 11:55:06,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 11:55:06,671 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758169708] [2021-06-30 11:55:06,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 11:55:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 11:55:06,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 11:55:06,729 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 11:55:06,729 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758169708] [2021-06-30 11:55:06,729 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758169708] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 11:55:06,729 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 11:55:06,729 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-30 11:55:06,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052935631] [2021-06-30 11:55:06,730 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 11:55:06,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 11:55:06,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 11:55:06,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 11:55:06,730 INFO L87 Difference]: Start difference. First operand 119730 states and 941973 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:55:10,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 11:55:10,028 INFO L93 Difference]: Finished difference Result 144863 states and 1136532 transitions. [2021-06-30 11:55:10,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 11:55:10,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-06-30 11:55:10,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 11:55:12,538 INFO L225 Difference]: With dead ends: 144863 [2021-06-30 11:55:12,539 INFO L226 Difference]: Without dead ends: 144826 [2021-06-30 11:55:12,539 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.5ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 11:55:36,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144826 states. [2021-06-30 11:55:42,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144826 to 120902. [2021-06-30 11:55:42,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120902 states, 120901 states have (on average 7.872672682608084) internal successors, (951814), 120901 states have internal predecessors, (951814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:55:44,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120902 states to 120902 states and 951814 transitions. [2021-06-30 11:55:44,428 INFO L78 Accepts]: Start accepts. Automaton has 120902 states and 951814 transitions. Word has length 32 [2021-06-30 11:55:44,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 11:55:44,428 INFO L482 AbstractCegarLoop]: Abstraction has 120902 states and 951814 transitions. [2021-06-30 11:55:44,428 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:55:44,428 INFO L276 IsEmpty]: Start isEmpty. Operand 120902 states and 951814 transitions. [2021-06-30 11:55:45,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-06-30 11:55:45,047 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 11:55:45,047 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 11:55:45,047 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-30 11:55:45,047 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 11:55:45,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 11:55:45,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1649747088, now seen corresponding path program 1 times [2021-06-30 11:55:45,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 11:55:45,048 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906622316] [2021-06-30 11:55:45,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 11:55:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 11:55:45,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 11:55:45,089 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 11:55:45,089 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906622316] [2021-06-30 11:55:45,089 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906622316] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 11:55:45,089 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 11:55:45,089 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-30 11:55:45,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364314688] [2021-06-30 11:55:45,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 11:55:45,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 11:55:45,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 11:55:45,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 11:55:45,090 INFO L87 Difference]: Start difference. First operand 120902 states and 951814 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:55:48,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 11:55:48,259 INFO L93 Difference]: Finished difference Result 145778 states and 1144377 transitions. [2021-06-30 11:55:48,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 11:55:48,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-06-30 11:55:48,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 11:55:50,347 INFO L225 Difference]: With dead ends: 145778 [2021-06-30 11:55:50,348 INFO L226 Difference]: Without dead ends: 145737 [2021-06-30 11:55:50,348 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.5ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 11:56:14,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145737 states. [2021-06-30 11:56:20,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145737 to 121899. [2021-06-30 11:56:20,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121899 states, 121898 states have (on average 7.875486062117508) internal successors, (960006), 121898 states have internal predecessors, (960006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:56:22,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121899 states to 121899 states and 960006 transitions. [2021-06-30 11:56:22,437 INFO L78 Accepts]: Start accepts. Automaton has 121899 states and 960006 transitions. Word has length 32 [2021-06-30 11:56:22,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 11:56:22,437 INFO L482 AbstractCegarLoop]: Abstraction has 121899 states and 960006 transitions. [2021-06-30 11:56:22,437 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:56:22,437 INFO L276 IsEmpty]: Start isEmpty. Operand 121899 states and 960006 transitions. [2021-06-30 11:56:23,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-06-30 11:56:23,560 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 11:56:23,560 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 11:56:23,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-30 11:56:23,560 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 11:56:23,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 11:56:23,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1878615152, now seen corresponding path program 1 times [2021-06-30 11:56:23,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 11:56:23,561 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176557754] [2021-06-30 11:56:23,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 11:56:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 11:56:23,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 11:56:23,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 11:56:23,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176557754] [2021-06-30 11:56:23,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176557754] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 11:56:23,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 11:56:23,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-30 11:56:23,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782212726] [2021-06-30 11:56:23,695 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 11:56:23,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 11:56:23,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 11:56:23,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 11:56:23,697 INFO L87 Difference]: Start difference. First operand 121899 states and 960006 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:56:29,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 11:56:29,603 INFO L93 Difference]: Finished difference Result 144674 states and 1136456 transitions. [2021-06-30 11:56:29,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 11:56:29,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-06-30 11:56:29,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 11:56:31,381 INFO L225 Difference]: With dead ends: 144674 [2021-06-30 11:56:31,382 INFO L226 Difference]: Without dead ends: 144624 [2021-06-30 11:56:31,383 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.8ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 11:56:55,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144624 states. [2021-06-30 11:57:01,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144624 to 122527. [2021-06-30 11:57:01,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122527 states, 122526 states have (on average 7.875185674877169) internal successors, (964915), 122526 states have internal predecessors, (964915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:57:03,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122527 states to 122527 states and 964915 transitions. [2021-06-30 11:57:03,255 INFO L78 Accepts]: Start accepts. Automaton has 122527 states and 964915 transitions. Word has length 32 [2021-06-30 11:57:03,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 11:57:03,255 INFO L482 AbstractCegarLoop]: Abstraction has 122527 states and 964915 transitions. [2021-06-30 11:57:03,255 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:57:03,255 INFO L276 IsEmpty]: Start isEmpty. Operand 122527 states and 964915 transitions. [2021-06-30 11:57:04,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-06-30 11:57:04,249 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 11:57:04,249 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 11:57:04,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-30 11:57:04,250 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 11:57:04,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 11:57:04,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1098608378, now seen corresponding path program 1 times [2021-06-30 11:57:04,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 11:57:04,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55139180] [2021-06-30 11:57:04,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 11:57:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 11:57:04,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 11:57:04,295 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 11:57:04,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55139180] [2021-06-30 11:57:04,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55139180] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 11:57:04,296 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 11:57:04,296 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-30 11:57:04,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826224597] [2021-06-30 11:57:04,296 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 11:57:04,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 11:57:04,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 11:57:04,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 11:57:04,297 INFO L87 Difference]: Start difference. First operand 122527 states and 964915 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:57:07,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 11:57:07,194 INFO L93 Difference]: Finished difference Result 146696 states and 1152862 transitions. [2021-06-30 11:57:07,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 11:57:07,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-06-30 11:57:07,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 11:57:09,792 INFO L225 Difference]: With dead ends: 146696 [2021-06-30 11:57:09,792 INFO L226 Difference]: Without dead ends: 146651 [2021-06-30 11:57:09,793 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.4ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 11:57:34,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146651 states. [2021-06-30 11:57:39,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146651 to 122978. [2021-06-30 11:57:40,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122978 states, 122977 states have (on average 7.877879603503094) internal successors, (968798), 122977 states have internal predecessors, (968798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:57:42,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122978 states to 122978 states and 968798 transitions. [2021-06-30 11:57:42,183 INFO L78 Accepts]: Start accepts. Automaton has 122978 states and 968798 transitions. Word has length 32 [2021-06-30 11:57:42,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 11:57:42,183 INFO L482 AbstractCegarLoop]: Abstraction has 122978 states and 968798 transitions. [2021-06-30 11:57:42,183 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:57:42,184 INFO L276 IsEmpty]: Start isEmpty. Operand 122978 states and 968798 transitions. [2021-06-30 11:57:43,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-06-30 11:57:43,206 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 11:57:43,206 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 11:57:43,206 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-30 11:57:43,206 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 11:57:43,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 11:57:43,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1006739894, now seen corresponding path program 1 times [2021-06-30 11:57:43,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 11:57:43,207 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884499139] [2021-06-30 11:57:43,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 11:57:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 11:57:43,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-30 11:57:43,263 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 11:57:43,263 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884499139] [2021-06-30 11:57:43,264 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884499139] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 11:57:43,264 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 11:57:43,264 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-30 11:57:43,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933706247] [2021-06-30 11:57:43,264 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 11:57:43,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 11:57:43,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 11:57:43,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 11:57:43,265 INFO L87 Difference]: Start difference. First operand 122978 states and 968798 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:57:46,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-30 11:57:46,165 INFO L93 Difference]: Finished difference Result 148139 states and 1163603 transitions. [2021-06-30 11:57:46,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 11:57:46,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-06-30 11:57:46,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-30 11:57:48,933 INFO L225 Difference]: With dead ends: 148139 [2021-06-30 11:57:48,933 INFO L226 Difference]: Without dead ends: 148110 [2021-06-30 11:57:48,933 INFO L760 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.4ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 11:58:13,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148110 states. [2021-06-30 11:58:18,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148110 to 123328. [2021-06-30 11:58:19,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123328 states, 123327 states have (on average 7.876563931661355) internal successors, (971393), 123327 states have internal predecessors, (971393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:58:21,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123328 states to 123328 states and 971393 transitions. [2021-06-30 11:58:21,274 INFO L78 Accepts]: Start accepts. Automaton has 123328 states and 971393 transitions. Word has length 32 [2021-06-30 11:58:21,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-30 11:58:21,274 INFO L482 AbstractCegarLoop]: Abstraction has 123328 states and 971393 transitions. [2021-06-30 11:58:21,274 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-30 11:58:21,274 INFO L276 IsEmpty]: Start isEmpty. Operand 123328 states and 971393 transitions. [2021-06-30 11:58:22,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-06-30 11:58:22,299 INFO L496 BasicCegarLoop]: Found error trace [2021-06-30 11:58:22,299 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 11:58:22,299 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-30 11:58:22,299 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 11:58:22,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 11:58:22,300 INFO L82 PathProgramCache]: Analyzing trace with hash -782674840, now seen corresponding path program 2 times [2021-06-30 11:58:22,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 11:58:22,300 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808738073] [2021-06-30 11:58:22,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 11:58:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 11:58:22,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-30 11:58:22,397 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 11:58:22,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808738073] [2021-06-30 11:58:22,397 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808738073] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 11:58:22,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688734959] [2021-06-30 11:58:22,398 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 11:58:22,480 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-30 11:58:22,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 11:58:22,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-30 11:58:22,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 11:58:22,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-30 11:58:22,604 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688734959] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 11:58:22,604 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 11:58:22,604 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-06-30 11:58:22,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526894631] [2021-06-30 11:58:22,604 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 11:58:22,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 11:58:22,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 11:58:22,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 11:58:22,605 INFO L87 Difference]: Start difference. First operand 123328 states and 971393 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2021-06-30 11:58:25,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 11:58:25,741 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-30 11:58:25,741 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-30 11:58:25,744 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-30 11:58:25,745 WARN L196 ceAbstractionStarter]: Timeout [2021-06-30 11:58:25,746 INFO L202 PluginConnector]: Adding new model add-sub08.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.06 11:58:25 BasicIcfg [2021-06-30 11:58:25,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-30 11:58:25,747 INFO L168 Benchmark]: Toolchain (without parser) took 653912.66 ms. Allocated memory was 176.2 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 157.2 MB in the beginning and 3.8 GB in the end (delta: -3.7 GB). Peak memory consumption was 4.3 GB. Max. memory is 8.0 GB. [2021-06-30 11:58:25,747 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 176.2 MB. Free memory is still 158.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-30 11:58:25,747 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.00 ms. Allocated memory is still 176.2 MB. Free memory was 157.2 MB in the beginning and 155.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-30 11:58:25,747 INFO L168 Benchmark]: Boogie Preprocessor took 14.17 ms. Allocated memory is still 176.2 MB. Free memory was 155.7 MB in the beginning and 154.8 MB in the end (delta: 926.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-30 11:58:25,747 INFO L168 Benchmark]: RCFGBuilder took 246.92 ms. Allocated memory is still 176.2 MB. Free memory was 154.8 MB in the beginning and 145.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-06-30 11:58:25,747 INFO L168 Benchmark]: TraceAbstraction took 653616.63 ms. Allocated memory was 176.2 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 144.9 MB in the beginning and 3.8 GB in the end (delta: -3.7 GB). Peak memory consumption was 4.3 GB. Max. memory is 8.0 GB. [2021-06-30 11:58:25,769 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 0.18 ms. Allocated memory is still 176.2 MB. Free memory is still 158.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 30.00 ms. Allocated memory is still 176.2 MB. Free memory was 157.2 MB in the beginning and 155.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.17 ms. Allocated memory is still 176.2 MB. Free memory was 155.7 MB in the beginning and 154.8 MB in the end (delta: 926.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 246.92 ms. Allocated memory is still 176.2 MB. Free memory was 154.8 MB in the beginning and 145.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 653616.63 ms. Allocated memory was 176.2 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 144.9 MB in the beginning and 3.8 GB in the end (delta: -3.7 GB). Peak memory consumption was 4.3 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 26]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while BasicCegarLoop was constructing difference of abstraction (123328states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (142708 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 10 procedures, 65 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 653408.4ms, OverallIterations: 17, TraceHistogramMax: 1, EmptinessCheckTime: 14046.9ms, AutomataDifference: 84802.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 52149.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1212 SDtfs, 634 SDslu, 1968 SDs, 0 SdLazy, 1628 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1006.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 37 SyntacticMatches, 17 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 316.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=123328occurred in iteration=16, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 500390.4ms AutomataMinimizationTime, 16 MinimizatonAttempts, 315048 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 80.4ms SsaConstructionTime, 173.3ms SatisfiabilityAnalysisTime, 1088.9ms InterpolantComputationTime, 546 NumberOfCodeBlocks, 546 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 528 ConstructedInterpolants, 0 QuantifiedInterpolants, 3604 SizeOfPredicates, 0 NumberOfNonLiveVariables, 167 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 18 InterpolantComputations, 16 PerfectInterpolantSequences, 22/26 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown !SESSION 2021-06-30 11:47:29.760 ----------------------------------------------- eclipse.buildId=unknown java.version=11.0.11 java.vendor=Debian BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/add-sub08.bpl Command-line arguments: -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/add-sub08.bpl !ENTRY org.eclipse.osgi 4 0 2021-06-30 11:58:26.030 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbcbaa5eb/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbcbaa5eb/.metadata/.log.