/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-variant-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 08:32:12,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 08:32:12,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 08:32:12,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 08:32:12,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 08:32:12,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 08:32:12,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 08:32:12,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 08:32:12,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 08:32:12,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 08:32:12,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 08:32:12,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 08:32:12,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 08:32:12,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 08:32:12,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 08:32:12,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 08:32:12,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 08:32:12,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 08:32:12,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 08:32:12,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 08:32:12,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 08:32:12,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 08:32:12,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 08:32:12,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 08:32:12,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 08:32:12,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 08:32:12,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 08:32:12,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 08:32:12,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 08:32:12,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 08:32:12,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 08:32:12,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 08:32:12,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 08:32:12,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 08:32:12,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 08:32:12,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 08:32:12,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 08:32:12,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 08:32:12,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 08:32:12,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 08:32:12,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 08:32:12,929 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-VariableLbe.epf [2019-12-27 08:32:12,949 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 08:32:12,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 08:32:12,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 08:32:12,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 08:32:12,954 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 08:32:12,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 08:32:12,954 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 08:32:12,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 08:32:12,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 08:32:12,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 08:32:12,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 08:32:12,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 08:32:12,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 08:32:12,957 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 08:32:12,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 08:32:12,957 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 08:32:12,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 08:32:12,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 08:32:12,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 08:32:12,958 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 08:32:12,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 08:32:12,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:32:12,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 08:32:12,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 08:32:12,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 08:32:12,959 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 08:32:12,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 08:32:12,960 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 08:32:12,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 08:32:12,960 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 08:32:13,286 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 08:32:13,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 08:32:13,308 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 08:32:13,309 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 08:32:13,310 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 08:32:13,311 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-variant-2.i [2019-12-27 08:32:13,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a577a8c/45f7048f02ea42cbadd343fb8ab2e35f/FLAG0d2b4b0b0 [2019-12-27 08:32:13,862 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 08:32:13,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-variant-2.i [2019-12-27 08:32:13,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a577a8c/45f7048f02ea42cbadd343fb8ab2e35f/FLAG0d2b4b0b0 [2019-12-27 08:32:14,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a577a8c/45f7048f02ea42cbadd343fb8ab2e35f [2019-12-27 08:32:14,204 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 08:32:14,207 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 08:32:14,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 08:32:14,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 08:32:14,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 08:32:14,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:32:14" (1/1) ... [2019-12-27 08:32:14,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b065a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:32:14, skipping insertion in model container [2019-12-27 08:32:14,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:32:14" (1/1) ... [2019-12-27 08:32:14,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 08:32:14,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 08:32:14,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:32:14,757 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 08:32:14,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:32:14,930 INFO L208 MainTranslator]: Completed translation [2019-12-27 08:32:14,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:32:14 WrapperNode [2019-12-27 08:32:14,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 08:32:14,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 08:32:14,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 08:32:14,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 08:32:14,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:32:14" (1/1) ... [2019-12-27 08:32:14,970 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:32:14" (1/1) ... [2019-12-27 08:32:15,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 08:32:15,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 08:32:15,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 08:32:15,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 08:32:15,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:32:14" (1/1) ... [2019-12-27 08:32:15,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:32:14" (1/1) ... [2019-12-27 08:32:15,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:32:14" (1/1) ... [2019-12-27 08:32:15,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:32:14" (1/1) ... [2019-12-27 08:32:15,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:32:14" (1/1) ... [2019-12-27 08:32:15,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:32:14" (1/1) ... [2019-12-27 08:32:15,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:32:14" (1/1) ... [2019-12-27 08:32:15,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 08:32:15,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 08:32:15,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 08:32:15,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 08:32:15,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:32:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:32:15,107 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-27 08:32:15,108 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-27 08:32:15,108 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 08:32:15,108 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 08:32:15,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 08:32:15,108 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-12-27 08:32:15,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 08:32:15,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 08:32:15,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-27 08:32:15,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 08:32:15,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 08:32:15,112 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 08:32:15,559 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 08:32:15,560 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-27 08:32:15,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:32:15 BoogieIcfgContainer [2019-12-27 08:32:15,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 08:32:15,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 08:32:15,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 08:32:15,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 08:32:15,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 08:32:14" (1/3) ... [2019-12-27 08:32:15,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f757ef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:32:15, skipping insertion in model container [2019-12-27 08:32:15,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:32:14" (2/3) ... [2019-12-27 08:32:15,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f757ef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:32:15, skipping insertion in model container [2019-12-27 08:32:15,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:32:15" (3/3) ... [2019-12-27 08:32:15,571 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-variant-2.i [2019-12-27 08:32:15,582 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 08:32:15,582 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 08:32:15,588 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 08:32:15,589 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 08:32:15,614 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,614 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,614 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,615 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,615 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,616 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,616 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,616 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,616 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,617 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,617 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,617 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,617 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,618 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,618 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,619 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,619 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,619 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,619 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,620 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,620 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,620 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,621 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,621 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,621 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,625 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,626 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,626 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,626 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,626 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,627 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,627 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,627 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,642 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,642 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,642 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,643 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,644 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,644 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:15,661 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 08:32:15,685 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:32:15,685 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:32:15,685 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:32:15,685 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:32:15,686 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:32:15,686 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:32:15,686 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:32:15,686 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:32:15,702 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 66 transitions [2019-12-27 08:32:15,703 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions [2019-12-27 08:32:15,754 INFO L132 PetriNetUnfolder]: 4/76 cut-off events. [2019-12-27 08:32:15,755 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 08:32:15,761 INFO L76 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 76 events. 4/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs. 0/69 useless extension candidates. Maximal degree in co-relation 55. Up to 4 conditions per place. [2019-12-27 08:32:15,765 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions [2019-12-27 08:32:15,800 INFO L132 PetriNetUnfolder]: 4/76 cut-off events. [2019-12-27 08:32:15,800 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 08:32:15,801 INFO L76 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 76 events. 4/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs. 0/69 useless extension candidates. Maximal degree in co-relation 55. Up to 4 conditions per place. [2019-12-27 08:32:15,804 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 992 [2019-12-27 08:32:15,805 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 08:32:18,159 WARN L192 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2019-12-27 08:32:18,303 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 08:32:18,308 INFO L206 etLargeBlockEncoding]: Checked pairs total: 729 [2019-12-27 08:32:18,308 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2019-12-27 08:32:18,311 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 15 places, 12 transitions [2019-12-27 08:32:18,321 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2019-12-27 08:32:18,323 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-12-27 08:32:18,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 08:32:18,327 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:18,328 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 08:32:18,328 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:18,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:18,333 INFO L82 PathProgramCache]: Analyzing trace with hash 259287, now seen corresponding path program 1 times [2019-12-27 08:32:18,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:18,342 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888976920] [2019-12-27 08:32:18,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:18,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:18,556 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888976920] [2019-12-27 08:32:18,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:18,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 08:32:18,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727726322] [2019-12-27 08:32:18,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:32:18,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:18,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:32:18,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:18,583 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2019-12-27 08:32:18,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:18,627 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2019-12-27 08:32:18,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:32:18,630 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 08:32:18,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:18,653 INFO L225 Difference]: With dead ends: 35 [2019-12-27 08:32:18,654 INFO L226 Difference]: Without dead ends: 31 [2019-12-27 08:32:18,657 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:18,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-27 08:32:18,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-27 08:32:18,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-27 08:32:18,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2019-12-27 08:32:18,703 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2019-12-27 08:32:18,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:18,703 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2019-12-27 08:32:18,703 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:32:18,703 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2019-12-27 08:32:18,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-27 08:32:18,708 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:18,708 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:18,709 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:18,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:18,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1095237165, now seen corresponding path program 1 times [2019-12-27 08:32:18,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:18,711 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210768876] [2019-12-27 08:32:18,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:18,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:18,885 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210768876] [2019-12-27 08:32:18,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:18,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 08:32:18,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33047594] [2019-12-27 08:32:18,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 08:32:18,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:18,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 08:32:18,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:32:18,890 INFO L87 Difference]: Start difference. First operand 31 states and 51 transitions. Second operand 4 states. [2019-12-27 08:32:18,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:18,914 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2019-12-27 08:32:18,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 08:32:18,915 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-27 08:32:18,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:18,916 INFO L225 Difference]: With dead ends: 26 [2019-12-27 08:32:18,916 INFO L226 Difference]: Without dead ends: 24 [2019-12-27 08:32:18,917 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:32:18,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-27 08:32:18,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-12-27 08:32:18,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-27 08:32:18,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 39 transitions. [2019-12-27 08:32:18,923 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 39 transitions. Word has length 7 [2019-12-27 08:32:18,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:18,923 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 39 transitions. [2019-12-27 08:32:18,924 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 08:32:18,924 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2019-12-27 08:32:18,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 08:32:18,925 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:18,926 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:18,926 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:18,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:18,926 INFO L82 PathProgramCache]: Analyzing trace with hash 407361282, now seen corresponding path program 1 times [2019-12-27 08:32:18,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:18,927 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171015656] [2019-12-27 08:32:18,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 08:32:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 08:32:19,026 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 08:32:19,027 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 08:32:19,027 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 08:32:19,028 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-27 08:32:19,037 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,038 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,038 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,038 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,038 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,038 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,039 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,039 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,039 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,039 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,039 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,039 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,040 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,040 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,040 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,041 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,042 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,042 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,043 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,043 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,044 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,044 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,044 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,044 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,044 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,045 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,045 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,045 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,045 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,045 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,046 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,046 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,046 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,046 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,047 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,047 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,047 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,047 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,047 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,047 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,048 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,048 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,048 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,049 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,049 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,049 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,049 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,049 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,049 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,050 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,052 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,052 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,052 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,052 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,052 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,053 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,053 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,053 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,064 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,065 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,065 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,066 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,066 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,066 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,066 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,066 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,069 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,070 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,070 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,070 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,070 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,070 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,072 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,072 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,072 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,072 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,073 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,073 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:19,078 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 08:32:19,078 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:32:19,078 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:32:19,078 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:32:19,079 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:32:19,079 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:32:19,079 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:32:19,079 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:32:19,079 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:32:19,082 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 90 transitions [2019-12-27 08:32:19,082 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions [2019-12-27 08:32:19,126 INFO L132 PetriNetUnfolder]: 6/105 cut-off events. [2019-12-27 08:32:19,128 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 08:32:19,131 INFO L76 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 105 events. 6/105 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 181 event pairs. 0/95 useless extension candidates. Maximal degree in co-relation 114. Up to 6 conditions per place. [2019-12-27 08:32:19,139 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions [2019-12-27 08:32:19,170 INFO L132 PetriNetUnfolder]: 6/105 cut-off events. [2019-12-27 08:32:19,170 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 08:32:19,174 INFO L76 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 105 events. 6/105 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 181 event pairs. 0/95 useless extension candidates. Maximal degree in co-relation 114. Up to 6 conditions per place. [2019-12-27 08:32:19,179 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2024 [2019-12-27 08:32:19,179 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 08:32:20,927 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-12-27 08:32:21,048 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 08:32:21,362 WARN L192 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 98 [2019-12-27 08:32:21,509 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 08:32:21,515 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2838 [2019-12-27 08:32:21,515 INFO L214 etLargeBlockEncoding]: Total number of compositions: 69 [2019-12-27 08:32:21,516 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 29 transitions [2019-12-27 08:32:21,555 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 755 states. [2019-12-27 08:32:21,555 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states. [2019-12-27 08:32:21,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 08:32:21,556 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:21,556 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 08:32:21,556 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:32:21,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:21,557 INFO L82 PathProgramCache]: Analyzing trace with hash 443582, now seen corresponding path program 1 times [2019-12-27 08:32:21,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:21,557 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543007387] [2019-12-27 08:32:21,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:21,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:21,598 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543007387] [2019-12-27 08:32:21,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:21,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 08:32:21,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129192630] [2019-12-27 08:32:21,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:32:21,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:21,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:32:21,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:21,602 INFO L87 Difference]: Start difference. First operand 755 states. Second operand 3 states. [2019-12-27 08:32:21,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:21,680 INFO L93 Difference]: Finished difference Result 893 states and 2840 transitions. [2019-12-27 08:32:21,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:32:21,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 08:32:21,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:21,699 INFO L225 Difference]: With dead ends: 893 [2019-12-27 08:32:21,699 INFO L226 Difference]: Without dead ends: 825 [2019-12-27 08:32:21,699 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:21,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2019-12-27 08:32:21,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 728. [2019-12-27 08:32:21,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2019-12-27 08:32:21,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 2380 transitions. [2019-12-27 08:32:21,816 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 2380 transitions. Word has length 3 [2019-12-27 08:32:21,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:21,816 INFO L462 AbstractCegarLoop]: Abstraction has 728 states and 2380 transitions. [2019-12-27 08:32:21,816 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:32:21,816 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 2380 transitions. [2019-12-27 08:32:21,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 08:32:21,817 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:21,817 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:21,818 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:32:21,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:21,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1277587267, now seen corresponding path program 1 times [2019-12-27 08:32:21,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:21,819 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469483419] [2019-12-27 08:32:21,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:21,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:21,891 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469483419] [2019-12-27 08:32:21,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:21,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:21,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651502254] [2019-12-27 08:32:21,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:32:21,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:21,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:32:21,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:32:21,893 INFO L87 Difference]: Start difference. First operand 728 states and 2380 transitions. Second operand 5 states. [2019-12-27 08:32:22,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:22,058 INFO L93 Difference]: Finished difference Result 1107 states and 3359 transitions. [2019-12-27 08:32:22,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:32:22,058 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 08:32:22,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:22,067 INFO L225 Difference]: With dead ends: 1107 [2019-12-27 08:32:22,067 INFO L226 Difference]: Without dead ends: 1092 [2019-12-27 08:32:22,068 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:22,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2019-12-27 08:32:22,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 655. [2019-12-27 08:32:22,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2019-12-27 08:32:22,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 2145 transitions. [2019-12-27 08:32:22,101 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 2145 transitions. Word has length 10 [2019-12-27 08:32:22,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:22,102 INFO L462 AbstractCegarLoop]: Abstraction has 655 states and 2145 transitions. [2019-12-27 08:32:22,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:32:22,103 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 2145 transitions. [2019-12-27 08:32:22,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 08:32:22,104 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:22,104 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:22,104 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:32:22,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:22,105 INFO L82 PathProgramCache]: Analyzing trace with hash 230062385, now seen corresponding path program 1 times [2019-12-27 08:32:22,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:22,105 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435294178] [2019-12-27 08:32:22,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:22,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:22,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 08:32:22,204 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435294178] [2019-12-27 08:32:22,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:22,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:22,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177526687] [2019-12-27 08:32:22,206 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:32:22,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:22,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:32:22,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:32:22,207 INFO L87 Difference]: Start difference. First operand 655 states and 2145 transitions. Second operand 5 states. [2019-12-27 08:32:22,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:22,343 INFO L93 Difference]: Finished difference Result 1068 states and 3229 transitions. [2019-12-27 08:32:22,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:32:22,344 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 08:32:22,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:22,352 INFO L225 Difference]: With dead ends: 1068 [2019-12-27 08:32:22,353 INFO L226 Difference]: Without dead ends: 1046 [2019-12-27 08:32:22,354 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:22,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2019-12-27 08:32:22,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 630. [2019-12-27 08:32:22,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2019-12-27 08:32:22,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 2011 transitions. [2019-12-27 08:32:22,386 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 2011 transitions. Word has length 14 [2019-12-27 08:32:22,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:22,386 INFO L462 AbstractCegarLoop]: Abstraction has 630 states and 2011 transitions. [2019-12-27 08:32:22,387 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:32:22,387 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 2011 transitions. [2019-12-27 08:32:22,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 08:32:22,393 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:22,393 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:22,393 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:32:22,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:22,394 INFO L82 PathProgramCache]: Analyzing trace with hash 226307167, now seen corresponding path program 1 times [2019-12-27 08:32:22,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:22,395 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348958073] [2019-12-27 08:32:22,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 08:32:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 08:32:22,466 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 08:32:22,467 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 08:32:22,467 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 08:32:22,467 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-27 08:32:22,485 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,486 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,486 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,486 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,486 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,487 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,487 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,487 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,487 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,487 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,488 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,488 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,488 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,488 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,489 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,489 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,489 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,489 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,489 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,490 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,490 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,490 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,490 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,491 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,491 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,491 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,491 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,491 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,492 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,492 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,493 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,493 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,493 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,493 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,494 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,494 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,494 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,494 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,494 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,494 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,495 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,495 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,495 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,498 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,499 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,499 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,499 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,499 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,499 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,500 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,500 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,500 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,500 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,500 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,501 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,501 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,501 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,501 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,502 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,502 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,502 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,502 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,503 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,503 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,503 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,503 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,503 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,504 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,504 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,504 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,504 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,505 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,505 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,505 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,505 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,506 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,506 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,506 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,507 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,507 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,507 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,507 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,507 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,509 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,509 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,510 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,510 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,510 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,510 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,511 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,511 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,514 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,514 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,515 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,515 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,515 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,515 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,515 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,515 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,528 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,529 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,529 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,529 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,529 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,529 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,531 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,531 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,531 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,531 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,531 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,531 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,533 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,533 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,533 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,533 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,533 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,533 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:22,534 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 08:32:22,535 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:32:22,535 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:32:22,535 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:32:22,535 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:32:22,535 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:32:22,535 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:32:22,535 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:32:22,536 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:32:22,537 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 114 transitions [2019-12-27 08:32:22,537 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions [2019-12-27 08:32:22,563 INFO L132 PetriNetUnfolder]: 8/134 cut-off events. [2019-12-27 08:32:22,563 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 08:32:22,566 INFO L76 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 134 events. 8/134 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 275 event pairs. 0/121 useless extension candidates. Maximal degree in co-relation 148. Up to 8 conditions per place. [2019-12-27 08:32:22,574 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions [2019-12-27 08:32:22,596 INFO L132 PetriNetUnfolder]: 8/134 cut-off events. [2019-12-27 08:32:22,596 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 08:32:22,599 INFO L76 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 134 events. 8/134 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 275 event pairs. 0/121 useless extension candidates. Maximal degree in co-relation 148. Up to 8 conditions per place. [2019-12-27 08:32:22,606 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3420 [2019-12-27 08:32:22,607 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 08:32:24,553 WARN L192 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-12-27 08:32:24,664 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2019-12-27 08:32:24,792 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-12-27 08:32:24,904 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 08:32:24,917 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6734 [2019-12-27 08:32:24,917 INFO L214 etLargeBlockEncoding]: Total number of compositions: 89 [2019-12-27 08:32:24,918 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 40 transitions [2019-12-27 08:32:25,289 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5273 states. [2019-12-27 08:32:25,289 INFO L276 IsEmpty]: Start isEmpty. Operand 5273 states. [2019-12-27 08:32:25,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 08:32:25,290 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:25,290 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 08:32:25,290 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:32:25,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:25,290 INFO L82 PathProgramCache]: Analyzing trace with hash 672286, now seen corresponding path program 1 times [2019-12-27 08:32:25,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:25,291 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926475881] [2019-12-27 08:32:25,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:25,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:25,316 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926475881] [2019-12-27 08:32:25,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:25,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 08:32:25,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707629511] [2019-12-27 08:32:25,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:32:25,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:25,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:32:25,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:25,318 INFO L87 Difference]: Start difference. First operand 5273 states. Second operand 3 states. [2019-12-27 08:32:25,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:25,441 INFO L93 Difference]: Finished difference Result 7407 states and 31211 transitions. [2019-12-27 08:32:25,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:32:25,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 08:32:25,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:25,517 INFO L225 Difference]: With dead ends: 7407 [2019-12-27 08:32:25,517 INFO L226 Difference]: Without dead ends: 6859 [2019-12-27 08:32:25,517 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:25,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6859 states. [2019-12-27 08:32:25,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6859 to 5755. [2019-12-27 08:32:25,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5755 states. [2019-12-27 08:32:25,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5755 states to 5755 states and 24922 transitions. [2019-12-27 08:32:25,789 INFO L78 Accepts]: Start accepts. Automaton has 5755 states and 24922 transitions. Word has length 3 [2019-12-27 08:32:25,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:25,789 INFO L462 AbstractCegarLoop]: Abstraction has 5755 states and 24922 transitions. [2019-12-27 08:32:25,789 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:32:25,789 INFO L276 IsEmpty]: Start isEmpty. Operand 5755 states and 24922 transitions. [2019-12-27 08:32:25,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 08:32:25,790 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:25,790 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:25,790 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:32:25,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:25,790 INFO L82 PathProgramCache]: Analyzing trace with hash -2052268641, now seen corresponding path program 1 times [2019-12-27 08:32:25,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:25,791 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385583716] [2019-12-27 08:32:25,791 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:25,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:25,843 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385583716] [2019-12-27 08:32:25,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:25,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:25,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062009118] [2019-12-27 08:32:25,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:32:25,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:25,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:32:25,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:32:25,845 INFO L87 Difference]: Start difference. First operand 5755 states and 24922 transitions. Second operand 5 states. [2019-12-27 08:32:26,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:26,114 INFO L93 Difference]: Finished difference Result 10309 states and 41465 transitions. [2019-12-27 08:32:26,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:32:26,114 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 08:32:26,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:26,179 INFO L225 Difference]: With dead ends: 10309 [2019-12-27 08:32:26,179 INFO L226 Difference]: Without dead ends: 10246 [2019-12-27 08:32:26,179 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:26,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10246 states. [2019-12-27 08:32:26,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10246 to 5479. [2019-12-27 08:32:26,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2019-12-27 08:32:26,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 23676 transitions. [2019-12-27 08:32:26,479 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 23676 transitions. Word has length 10 [2019-12-27 08:32:26,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:26,480 INFO L462 AbstractCegarLoop]: Abstraction has 5479 states and 23676 transitions. [2019-12-27 08:32:26,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:32:26,480 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 23676 transitions. [2019-12-27 08:32:26,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 08:32:26,481 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:26,481 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:26,481 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:32:26,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:26,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1690988075, now seen corresponding path program 1 times [2019-12-27 08:32:26,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:26,482 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663921204] [2019-12-27 08:32:26,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:26,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 08:32:26,534 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663921204] [2019-12-27 08:32:26,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:26,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:26,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199928721] [2019-12-27 08:32:26,535 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:32:26,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:26,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:32:26,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:32:26,536 INFO L87 Difference]: Start difference. First operand 5479 states and 23676 transitions. Second operand 5 states. [2019-12-27 08:32:26,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:26,717 INFO L93 Difference]: Finished difference Result 11134 states and 45075 transitions. [2019-12-27 08:32:26,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:32:26,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 08:32:26,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:26,781 INFO L225 Difference]: With dead ends: 11134 [2019-12-27 08:32:26,781 INFO L226 Difference]: Without dead ends: 11059 [2019-12-27 08:32:26,782 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:27,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11059 states. [2019-12-27 08:32:27,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11059 to 5882. [2019-12-27 08:32:27,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5882 states. [2019-12-27 08:32:27,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5882 states to 5882 states and 25395 transitions. [2019-12-27 08:32:27,619 INFO L78 Accepts]: Start accepts. Automaton has 5882 states and 25395 transitions. Word has length 14 [2019-12-27 08:32:27,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:27,619 INFO L462 AbstractCegarLoop]: Abstraction has 5882 states and 25395 transitions. [2019-12-27 08:32:27,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:32:27,619 INFO L276 IsEmpty]: Start isEmpty. Operand 5882 states and 25395 transitions. [2019-12-27 08:32:27,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-27 08:32:27,621 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:27,621 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:27,621 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:32:27,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:27,622 INFO L82 PathProgramCache]: Analyzing trace with hash -645314245, now seen corresponding path program 1 times [2019-12-27 08:32:27,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:27,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281359759] [2019-12-27 08:32:27,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:27,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:27,665 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281359759] [2019-12-27 08:32:27,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:27,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:27,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476128593] [2019-12-27 08:32:27,666 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:32:27,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:27,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:32:27,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:27,667 INFO L87 Difference]: Start difference. First operand 5882 states and 25395 transitions. Second operand 3 states. [2019-12-27 08:32:27,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:27,695 INFO L93 Difference]: Finished difference Result 2983 states and 10319 transitions. [2019-12-27 08:32:27,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:32:27,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-12-27 08:32:27,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:27,707 INFO L225 Difference]: With dead ends: 2983 [2019-12-27 08:32:27,707 INFO L226 Difference]: Without dead ends: 2983 [2019-12-27 08:32:27,707 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:27,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2019-12-27 08:32:27,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 2959. [2019-12-27 08:32:27,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2959 states. [2019-12-27 08:32:27,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2959 states to 2959 states and 10243 transitions. [2019-12-27 08:32:27,784 INFO L78 Accepts]: Start accepts. Automaton has 2959 states and 10243 transitions. Word has length 17 [2019-12-27 08:32:27,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:27,784 INFO L462 AbstractCegarLoop]: Abstraction has 2959 states and 10243 transitions. [2019-12-27 08:32:27,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:32:27,784 INFO L276 IsEmpty]: Start isEmpty. Operand 2959 states and 10243 transitions. [2019-12-27 08:32:27,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 08:32:27,786 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:27,786 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:27,786 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:32:27,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:27,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1331292250, now seen corresponding path program 1 times [2019-12-27 08:32:27,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:27,787 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577959910] [2019-12-27 08:32:27,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:27,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:27,863 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577959910] [2019-12-27 08:32:27,863 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56353344] [2019-12-27 08:32:27,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-12-27 08:32:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:27,944 INFO L264 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-27 08:32:27,946 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 08:32:28,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:28,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 08:32:28,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2019-12-27 08:32:28,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686884508] [2019-12-27 08:32:28,037 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-27 08:32:28,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:28,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-27 08:32:28,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-12-27 08:32:28,038 INFO L87 Difference]: Start difference. First operand 2959 states and 10243 transitions. Second operand 12 states. [2019-12-27 08:32:28,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:28,538 INFO L93 Difference]: Finished difference Result 6079 states and 20204 transitions. [2019-12-27 08:32:28,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 08:32:28,539 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 18 [2019-12-27 08:32:28,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:28,561 INFO L225 Difference]: With dead ends: 6079 [2019-12-27 08:32:28,561 INFO L226 Difference]: Without dead ends: 6043 [2019-12-27 08:32:28,562 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2019-12-27 08:32:28,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6043 states. [2019-12-27 08:32:28,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6043 to 2725. [2019-12-27 08:32:28,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2725 states. [2019-12-27 08:32:28,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2725 states to 2725 states and 9384 transitions. [2019-12-27 08:32:28,670 INFO L78 Accepts]: Start accepts. Automaton has 2725 states and 9384 transitions. Word has length 18 [2019-12-27 08:32:28,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:28,671 INFO L462 AbstractCegarLoop]: Abstraction has 2725 states and 9384 transitions. [2019-12-27 08:32:28,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-27 08:32:28,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2725 states and 9384 transitions. [2019-12-27 08:32:28,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 08:32:28,672 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:28,673 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:28,877 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:32:28,877 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:32:28,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:28,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1022908716, now seen corresponding path program 1 times [2019-12-27 08:32:28,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:28,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273516099] [2019-12-27 08:32:28,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:28,944 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-27 08:32:28,945 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273516099] [2019-12-27 08:32:28,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:28,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:28,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209239602] [2019-12-27 08:32:28,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:32:28,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:28,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:32:28,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:32:28,946 INFO L87 Difference]: Start difference. First operand 2725 states and 9384 transitions. Second operand 5 states. [2019-12-27 08:32:29,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:29,130 INFO L93 Difference]: Finished difference Result 5203 states and 17665 transitions. [2019-12-27 08:32:29,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:32:29,131 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-12-27 08:32:29,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:29,154 INFO L225 Difference]: With dead ends: 5203 [2019-12-27 08:32:29,154 INFO L226 Difference]: Without dead ends: 5167 [2019-12-27 08:32:29,155 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:29,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5167 states. [2019-12-27 08:32:29,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5167 to 2953. [2019-12-27 08:32:29,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2953 states. [2019-12-27 08:32:29,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 10213 transitions. [2019-12-27 08:32:29,282 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 10213 transitions. Word has length 18 [2019-12-27 08:32:29,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:29,283 INFO L462 AbstractCegarLoop]: Abstraction has 2953 states and 10213 transitions. [2019-12-27 08:32:29,283 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:32:29,283 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 10213 transitions. [2019-12-27 08:32:29,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 08:32:29,285 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:29,286 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:29,286 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:32:29,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:29,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1017797005, now seen corresponding path program 1 times [2019-12-27 08:32:29,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:29,289 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74266539] [2019-12-27 08:32:29,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 08:32:29,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 08:32:29,360 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 08:32:29,360 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 08:32:29,361 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 08:32:29,361 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-27 08:32:29,385 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,385 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,385 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,385 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,386 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,386 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,386 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,387 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,387 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,387 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,387 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,388 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,388 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,388 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,388 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,389 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,389 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,389 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,389 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,390 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,390 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,390 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,390 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,391 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,391 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,391 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,391 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,392 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,392 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,392 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,392 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,393 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,393 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,393 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,393 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,394 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,394 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,394 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,394 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,395 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,395 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,395 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,395 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,396 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,396 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,396 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,396 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,397 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,397 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,397 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,397 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,397 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,398 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,398 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,398 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,399 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,399 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,399 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,399 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,400 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,400 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,400 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,400 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,401 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,401 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,401 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,401 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,402 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,402 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,402 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,402 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,403 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,403 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,403 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,403 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,404 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,404 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,404 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,404 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,404 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,405 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,405 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,405 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,405 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,405 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,406 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,406 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,406 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,406 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,406 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,406 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,407 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,407 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,407 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,407 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,407 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,407 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,407 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,408 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,408 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,408 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,408 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,409 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,409 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,409 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,409 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,409 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,409 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,412 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,412 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,412 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,413 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,413 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,413 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,413 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,413 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,415 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,415 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,415 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,415 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,415 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,417 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,417 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,417 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,420 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,420 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,420 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,421 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,421 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,421 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,421 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,421 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,426 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,427 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,427 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,427 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,427 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,428 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,430 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,430 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,430 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,431 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,431 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,431 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,433 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,434 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,434 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,434 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,434 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,435 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,437 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,437 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,437 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,437 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,438 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,438 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:29,440 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-27 08:32:29,440 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:32:29,441 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:32:29,441 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:32:29,441 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:32:29,441 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:32:29,441 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:32:29,441 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:32:29,442 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:32:29,446 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 138 transitions [2019-12-27 08:32:29,446 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 147 places, 138 transitions [2019-12-27 08:32:29,488 INFO L132 PetriNetUnfolder]: 10/163 cut-off events. [2019-12-27 08:32:29,489 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 08:32:29,494 INFO L76 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 163 events. 10/163 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 344 event pairs. 0/147 useless extension candidates. Maximal degree in co-relation 183. Up to 10 conditions per place. [2019-12-27 08:32:29,504 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 147 places, 138 transitions [2019-12-27 08:32:29,530 INFO L132 PetriNetUnfolder]: 10/163 cut-off events. [2019-12-27 08:32:29,530 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 08:32:29,536 INFO L76 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 163 events. 10/163 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 344 event pairs. 0/147 useless extension candidates. Maximal degree in co-relation 183. Up to 10 conditions per place. [2019-12-27 08:32:29,548 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 5180 [2019-12-27 08:32:29,548 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 08:32:32,211 WARN L192 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2019-12-27 08:32:32,352 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 08:32:32,429 INFO L206 etLargeBlockEncoding]: Checked pairs total: 10723 [2019-12-27 08:32:32,429 INFO L214 etLargeBlockEncoding]: Total number of compositions: 110 [2019-12-27 08:32:32,429 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 49 transitions [2019-12-27 08:32:34,479 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 27215 states. [2019-12-27 08:32:34,479 INFO L276 IsEmpty]: Start isEmpty. Operand 27215 states. [2019-12-27 08:32:34,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 08:32:34,480 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:34,480 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 08:32:34,480 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:34,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:34,480 INFO L82 PathProgramCache]: Analyzing trace with hash 946624, now seen corresponding path program 1 times [2019-12-27 08:32:34,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:34,481 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627931267] [2019-12-27 08:32:34,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:34,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:34,500 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627931267] [2019-12-27 08:32:34,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:34,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 08:32:34,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122428112] [2019-12-27 08:32:34,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:32:34,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:34,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:32:34,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:34,501 INFO L87 Difference]: Start difference. First operand 27215 states. Second operand 3 states. [2019-12-27 08:32:35,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:35,981 INFO L93 Difference]: Finished difference Result 40707 states and 212933 transitions. [2019-12-27 08:32:35,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:32:35,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 08:32:35,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:36,142 INFO L225 Difference]: With dead ends: 40707 [2019-12-27 08:32:36,142 INFO L226 Difference]: Without dead ends: 37840 [2019-12-27 08:32:36,142 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:36,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37840 states. [2019-12-27 08:32:37,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37840 to 31312. [2019-12-27 08:32:37,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31312 states. [2019-12-27 08:32:37,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31312 states to 31312 states and 167892 transitions. [2019-12-27 08:32:37,366 INFO L78 Accepts]: Start accepts. Automaton has 31312 states and 167892 transitions. Word has length 3 [2019-12-27 08:32:37,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:37,366 INFO L462 AbstractCegarLoop]: Abstraction has 31312 states and 167892 transitions. [2019-12-27 08:32:37,366 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:32:37,366 INFO L276 IsEmpty]: Start isEmpty. Operand 31312 states and 167892 transitions. [2019-12-27 08:32:37,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 08:32:37,366 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:37,366 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:37,367 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:37,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:37,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1611095704, now seen corresponding path program 1 times [2019-12-27 08:32:37,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:37,367 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770954915] [2019-12-27 08:32:37,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:37,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:37,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:37,400 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770954915] [2019-12-27 08:32:37,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:37,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:37,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714120261] [2019-12-27 08:32:37,401 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:32:37,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:37,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:32:37,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:32:37,401 INFO L87 Difference]: Start difference. First operand 31312 states and 167892 transitions. Second operand 5 states. [2019-12-27 08:32:39,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:39,764 INFO L93 Difference]: Finished difference Result 61552 states and 310872 transitions. [2019-12-27 08:32:39,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:32:39,765 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 08:32:39,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:40,065 INFO L225 Difference]: With dead ends: 61552 [2019-12-27 08:32:40,066 INFO L226 Difference]: Without dead ends: 61417 [2019-12-27 08:32:40,066 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:40,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61417 states. [2019-12-27 08:32:41,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61417 to 31849. [2019-12-27 08:32:41,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31849 states. [2019-12-27 08:32:41,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31849 states to 31849 states and 171175 transitions. [2019-12-27 08:32:41,564 INFO L78 Accepts]: Start accepts. Automaton has 31849 states and 171175 transitions. Word has length 10 [2019-12-27 08:32:41,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:41,564 INFO L462 AbstractCegarLoop]: Abstraction has 31849 states and 171175 transitions. [2019-12-27 08:32:41,564 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:32:41,565 INFO L276 IsEmpty]: Start isEmpty. Operand 31849 states and 171175 transitions. [2019-12-27 08:32:41,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 08:32:41,565 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:41,565 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:41,566 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:41,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:41,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1422265713, now seen corresponding path program 1 times [2019-12-27 08:32:41,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:41,566 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260776008] [2019-12-27 08:32:41,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:41,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 08:32:41,612 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260776008] [2019-12-27 08:32:41,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:41,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:41,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536805296] [2019-12-27 08:32:41,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:32:41,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:41,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:32:41,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:32:41,614 INFO L87 Difference]: Start difference. First operand 31849 states and 171175 transitions. Second operand 5 states. [2019-12-27 08:32:43,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:43,936 INFO L93 Difference]: Finished difference Result 68818 states and 349292 transitions. [2019-12-27 08:32:43,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:32:43,937 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 08:32:43,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:44,228 INFO L225 Difference]: With dead ends: 68818 [2019-12-27 08:32:44,228 INFO L226 Difference]: Without dead ends: 68623 [2019-12-27 08:32:44,228 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:44,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68623 states. [2019-12-27 08:32:45,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68623 to 35815. [2019-12-27 08:32:45,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35815 states. [2019-12-27 08:32:45,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35815 states to 35815 states and 193241 transitions. [2019-12-27 08:32:45,716 INFO L78 Accepts]: Start accepts. Automaton has 35815 states and 193241 transitions. Word has length 14 [2019-12-27 08:32:45,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:45,716 INFO L462 AbstractCegarLoop]: Abstraction has 35815 states and 193241 transitions. [2019-12-27 08:32:45,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:32:45,717 INFO L276 IsEmpty]: Start isEmpty. Operand 35815 states and 193241 transitions. [2019-12-27 08:32:45,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-27 08:32:45,718 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:45,718 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:45,718 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:45,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:45,719 INFO L82 PathProgramCache]: Analyzing trace with hash 4042225, now seen corresponding path program 1 times [2019-12-27 08:32:45,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:45,719 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723672261] [2019-12-27 08:32:45,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:45,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:45,752 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723672261] [2019-12-27 08:32:45,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:45,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:45,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013418813] [2019-12-27 08:32:45,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:32:45,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:45,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:32:45,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:45,753 INFO L87 Difference]: Start difference. First operand 35815 states and 193241 transitions. Second operand 3 states. [2019-12-27 08:32:45,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:45,854 INFO L93 Difference]: Finished difference Result 11815 states and 46339 transitions. [2019-12-27 08:32:45,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:32:45,855 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-12-27 08:32:45,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:45,880 INFO L225 Difference]: With dead ends: 11815 [2019-12-27 08:32:45,880 INFO L226 Difference]: Without dead ends: 11815 [2019-12-27 08:32:45,881 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:32:45,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11815 states. [2019-12-27 08:32:46,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11815 to 11727. [2019-12-27 08:32:46,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11727 states. [2019-12-27 08:32:46,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11727 states to 11727 states and 46027 transitions. [2019-12-27 08:32:46,091 INFO L78 Accepts]: Start accepts. Automaton has 11727 states and 46027 transitions. Word has length 17 [2019-12-27 08:32:46,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:46,091 INFO L462 AbstractCegarLoop]: Abstraction has 11727 states and 46027 transitions. [2019-12-27 08:32:46,091 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:32:46,091 INFO L276 IsEmpty]: Start isEmpty. Operand 11727 states and 46027 transitions. [2019-12-27 08:32:46,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 08:32:46,092 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:46,093 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:46,093 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:46,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:46,093 INFO L82 PathProgramCache]: Analyzing trace with hash 443360276, now seen corresponding path program 1 times [2019-12-27 08:32:46,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:46,093 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544365698] [2019-12-27 08:32:46,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:46,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:46,155 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544365698] [2019-12-27 08:32:46,155 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323726954] [2019-12-27 08:32:46,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:32:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:46,794 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-27 08:32:46,796 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 08:32:46,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:32:46,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 08:32:46,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2019-12-27 08:32:46,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174834888] [2019-12-27 08:32:46,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-27 08:32:46,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:46,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-27 08:32:46,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-12-27 08:32:46,866 INFO L87 Difference]: Start difference. First operand 11727 states and 46027 transitions. Second operand 12 states. [2019-12-27 08:32:47,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:47,372 INFO L93 Difference]: Finished difference Result 28530 states and 109464 transitions. [2019-12-27 08:32:47,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 08:32:47,372 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 18 [2019-12-27 08:32:47,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:47,438 INFO L225 Difference]: With dead ends: 28530 [2019-12-27 08:32:47,438 INFO L226 Difference]: Without dead ends: 28458 [2019-12-27 08:32:47,439 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2019-12-27 08:32:47,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28458 states. [2019-12-27 08:32:47,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28458 to 11001. [2019-12-27 08:32:47,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11001 states. [2019-12-27 08:32:47,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11001 states to 11001 states and 43045 transitions. [2019-12-27 08:32:47,754 INFO L78 Accepts]: Start accepts. Automaton has 11001 states and 43045 transitions. Word has length 18 [2019-12-27 08:32:47,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:47,755 INFO L462 AbstractCegarLoop]: Abstraction has 11001 states and 43045 transitions. [2019-12-27 08:32:47,755 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-27 08:32:47,755 INFO L276 IsEmpty]: Start isEmpty. Operand 11001 states and 43045 transitions. [2019-12-27 08:32:47,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 08:32:47,756 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:47,756 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:47,959 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:32:47,962 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:47,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:47,963 INFO L82 PathProgramCache]: Analyzing trace with hash 945001287, now seen corresponding path program 1 times [2019-12-27 08:32:47,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:47,963 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063495741] [2019-12-27 08:32:47,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:48,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 08:32:48,018 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063495741] [2019-12-27 08:32:48,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:48,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 08:32:48,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516609923] [2019-12-27 08:32:48,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 08:32:48,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:48,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 08:32:48,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:48,019 INFO L87 Difference]: Start difference. First operand 11001 states and 43045 transitions. Second operand 7 states. [2019-12-27 08:32:48,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:48,445 INFO L93 Difference]: Finished difference Result 28862 states and 110813 transitions. [2019-12-27 08:32:48,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 08:32:48,445 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-12-27 08:32:48,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:48,508 INFO L225 Difference]: With dead ends: 28862 [2019-12-27 08:32:48,508 INFO L226 Difference]: Without dead ends: 28784 [2019-12-27 08:32:48,508 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2019-12-27 08:32:48,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28784 states. [2019-12-27 08:32:49,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28784 to 9913. [2019-12-27 08:32:49,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9913 states. [2019-12-27 08:32:49,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9913 states to 9913 states and 38486 transitions. [2019-12-27 08:32:49,866 INFO L78 Accepts]: Start accepts. Automaton has 9913 states and 38486 transitions. Word has length 18 [2019-12-27 08:32:49,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:49,866 INFO L462 AbstractCegarLoop]: Abstraction has 9913 states and 38486 transitions. [2019-12-27 08:32:49,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 08:32:49,867 INFO L276 IsEmpty]: Start isEmpty. Operand 9913 states and 38486 transitions. [2019-12-27 08:32:49,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 08:32:49,867 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:49,868 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:49,868 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:49,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:49,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1251122520, now seen corresponding path program 1 times [2019-12-27 08:32:49,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:49,869 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921485650] [2019-12-27 08:32:49,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:49,952 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-27 08:32:49,952 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921485650] [2019-12-27 08:32:49,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:49,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:49,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876489194] [2019-12-27 08:32:49,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:32:49,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:49,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:32:49,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:32:49,954 INFO L87 Difference]: Start difference. First operand 9913 states and 38486 transitions. Second operand 5 states. [2019-12-27 08:32:50,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:50,175 INFO L93 Difference]: Finished difference Result 21922 states and 84447 transitions. [2019-12-27 08:32:50,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:32:50,175 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-12-27 08:32:50,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:50,225 INFO L225 Difference]: With dead ends: 21922 [2019-12-27 08:32:50,225 INFO L226 Difference]: Without dead ends: 21850 [2019-12-27 08:32:50,225 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:50,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21850 states. [2019-12-27 08:32:50,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21850 to 11607. [2019-12-27 08:32:50,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11607 states. [2019-12-27 08:32:50,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11607 states to 11607 states and 45534 transitions. [2019-12-27 08:32:50,494 INFO L78 Accepts]: Start accepts. Automaton has 11607 states and 45534 transitions. Word has length 18 [2019-12-27 08:32:50,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:50,494 INFO L462 AbstractCegarLoop]: Abstraction has 11607 states and 45534 transitions. [2019-12-27 08:32:50,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:32:50,494 INFO L276 IsEmpty]: Start isEmpty. Operand 11607 states and 45534 transitions. [2019-12-27 08:32:50,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:32:50,497 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:50,497 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:50,498 INFO L410 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:50,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:50,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1715192443, now seen corresponding path program 1 times [2019-12-27 08:32:50,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:50,498 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732298398] [2019-12-27 08:32:50,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:50,569 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-27 08:32:50,570 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732298398] [2019-12-27 08:32:50,570 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524327571] [2019-12-27 08:32:50,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:32:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:50,681 INFO L264 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-27 08:32:50,682 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 08:32:50,768 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-27 08:32:50,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 08:32:50,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2019-12-27 08:32:50,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136826265] [2019-12-27 08:32:50,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-27 08:32:50,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:50,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-27 08:32:50,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-12-27 08:32:50,771 INFO L87 Difference]: Start difference. First operand 11607 states and 45534 transitions. Second operand 12 states. [2019-12-27 08:32:51,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:51,361 INFO L93 Difference]: Finished difference Result 30386 states and 117281 transitions. [2019-12-27 08:32:51,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 08:32:51,362 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2019-12-27 08:32:51,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:51,460 INFO L225 Difference]: With dead ends: 30386 [2019-12-27 08:32:51,460 INFO L226 Difference]: Without dead ends: 30314 [2019-12-27 08:32:51,465 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2019-12-27 08:32:51,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30314 states. [2019-12-27 08:32:51,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30314 to 11357. [2019-12-27 08:32:51,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11357 states. [2019-12-27 08:32:52,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11357 states to 11357 states and 44521 transitions. [2019-12-27 08:32:52,122 INFO L78 Accepts]: Start accepts. Automaton has 11357 states and 44521 transitions. Word has length 22 [2019-12-27 08:32:52,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:52,123 INFO L462 AbstractCegarLoop]: Abstraction has 11357 states and 44521 transitions. [2019-12-27 08:32:52,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-27 08:32:52,123 INFO L276 IsEmpty]: Start isEmpty. Operand 11357 states and 44521 transitions. [2019-12-27 08:32:52,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:32:52,126 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:52,126 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:52,327 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:32:52,328 INFO L410 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:52,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:52,329 INFO L82 PathProgramCache]: Analyzing trace with hash 677055142, now seen corresponding path program 1 times [2019-12-27 08:32:52,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:52,329 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427647593] [2019-12-27 08:32:52,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:52,408 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 08:32:52,408 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427647593] [2019-12-27 08:32:52,408 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974290962] [2019-12-27 08:32:52,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:32:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:52,480 INFO L264 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-27 08:32:52,482 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 08:32:52,542 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 08:32:52,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 08:32:52,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2019-12-27 08:32:52,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926140683] [2019-12-27 08:32:52,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-27 08:32:52,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:52,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-27 08:32:52,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-12-27 08:32:52,544 INFO L87 Difference]: Start difference. First operand 11357 states and 44521 transitions. Second operand 12 states. [2019-12-27 08:32:53,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:53,288 INFO L93 Difference]: Finished difference Result 31062 states and 120131 transitions. [2019-12-27 08:32:53,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 08:32:53,288 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2019-12-27 08:32:53,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:53,362 INFO L225 Difference]: With dead ends: 31062 [2019-12-27 08:32:53,362 INFO L226 Difference]: Without dead ends: 30990 [2019-12-27 08:32:53,363 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2019-12-27 08:32:53,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30990 states. [2019-12-27 08:32:53,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30990 to 11439. [2019-12-27 08:32:53,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11439 states. [2019-12-27 08:32:53,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11439 states to 11439 states and 44850 transitions. [2019-12-27 08:32:53,701 INFO L78 Accepts]: Start accepts. Automaton has 11439 states and 44850 transitions. Word has length 22 [2019-12-27 08:32:53,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:53,701 INFO L462 AbstractCegarLoop]: Abstraction has 11439 states and 44850 transitions. [2019-12-27 08:32:53,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-27 08:32:53,702 INFO L276 IsEmpty]: Start isEmpty. Operand 11439 states and 44850 transitions. [2019-12-27 08:32:53,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:32:53,705 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:53,705 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:53,905 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 08:32:53,906 INFO L410 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:53,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:53,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1396745761, now seen corresponding path program 1 times [2019-12-27 08:32:53,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:53,907 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887400711] [2019-12-27 08:32:53,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:53,981 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-27 08:32:53,981 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887400711] [2019-12-27 08:32:53,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:53,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 08:32:53,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784398643] [2019-12-27 08:32:53,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 08:32:53,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:53,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 08:32:53,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:53,983 INFO L87 Difference]: Start difference. First operand 11439 states and 44850 transitions. Second operand 7 states. [2019-12-27 08:32:54,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:54,464 INFO L93 Difference]: Finished difference Result 31058 states and 120097 transitions. [2019-12-27 08:32:54,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 08:32:54,465 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2019-12-27 08:32:54,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:54,532 INFO L225 Difference]: With dead ends: 31058 [2019-12-27 08:32:54,533 INFO L226 Difference]: Without dead ends: 30980 [2019-12-27 08:32:54,533 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2019-12-27 08:32:54,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30980 states. [2019-12-27 08:32:55,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30980 to 11093. [2019-12-27 08:32:55,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11093 states. [2019-12-27 08:32:55,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11093 states to 11093 states and 43368 transitions. [2019-12-27 08:32:55,086 INFO L78 Accepts]: Start accepts. Automaton has 11093 states and 43368 transitions. Word has length 22 [2019-12-27 08:32:55,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:55,086 INFO L462 AbstractCegarLoop]: Abstraction has 11093 states and 43368 transitions. [2019-12-27 08:32:55,086 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 08:32:55,086 INFO L276 IsEmpty]: Start isEmpty. Operand 11093 states and 43368 transitions. [2019-12-27 08:32:55,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:32:55,090 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:55,090 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:55,090 INFO L410 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:55,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:55,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1396448409, now seen corresponding path program 1 times [2019-12-27 08:32:55,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:55,091 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806782535] [2019-12-27 08:32:55,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:55,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:55,163 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-27 08:32:55,164 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806782535] [2019-12-27 08:32:55,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:55,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 08:32:55,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369694552] [2019-12-27 08:32:55,165 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 08:32:55,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:55,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 08:32:55,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:55,165 INFO L87 Difference]: Start difference. First operand 11093 states and 43368 transitions. Second operand 7 states. [2019-12-27 08:32:55,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:55,644 INFO L93 Difference]: Finished difference Result 30992 states and 119819 transitions. [2019-12-27 08:32:55,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 08:32:55,644 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2019-12-27 08:32:55,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:55,712 INFO L225 Difference]: With dead ends: 30992 [2019-12-27 08:32:55,712 INFO L226 Difference]: Without dead ends: 30914 [2019-12-27 08:32:55,712 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2019-12-27 08:32:55,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30914 states. [2019-12-27 08:32:56,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30914 to 10835. [2019-12-27 08:32:56,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10835 states. [2019-12-27 08:32:56,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10835 states to 10835 states and 42198 transitions. [2019-12-27 08:32:56,039 INFO L78 Accepts]: Start accepts. Automaton has 10835 states and 42198 transitions. Word has length 22 [2019-12-27 08:32:56,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:56,041 INFO L462 AbstractCegarLoop]: Abstraction has 10835 states and 42198 transitions. [2019-12-27 08:32:56,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 08:32:56,042 INFO L276 IsEmpty]: Start isEmpty. Operand 10835 states and 42198 transitions. [2019-12-27 08:32:56,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:32:56,045 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:56,046 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:56,046 INFO L410 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:56,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:56,046 INFO L82 PathProgramCache]: Analyzing trace with hash -2032188915, now seen corresponding path program 1 times [2019-12-27 08:32:56,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:56,047 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893351915] [2019-12-27 08:32:56,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:32:56,083 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-12-27 08:32:56,083 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893351915] [2019-12-27 08:32:56,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:32:56,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:32:56,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431550769] [2019-12-27 08:32:56,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:32:56,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:32:56,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:32:56,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:32:56,085 INFO L87 Difference]: Start difference. First operand 10835 states and 42198 transitions. Second operand 5 states. [2019-12-27 08:32:56,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:32:56,388 INFO L93 Difference]: Finished difference Result 22192 states and 85781 transitions. [2019-12-27 08:32:56,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:32:56,389 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-12-27 08:32:56,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:32:56,459 INFO L225 Difference]: With dead ends: 22192 [2019-12-27 08:32:56,460 INFO L226 Difference]: Without dead ends: 22108 [2019-12-27 08:32:56,460 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:32:56,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22108 states. [2019-12-27 08:32:56,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22108 to 12085. [2019-12-27 08:32:56,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12085 states. [2019-12-27 08:32:56,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12085 states to 12085 states and 47309 transitions. [2019-12-27 08:32:56,834 INFO L78 Accepts]: Start accepts. Automaton has 12085 states and 47309 transitions. Word has length 22 [2019-12-27 08:32:56,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:32:56,834 INFO L462 AbstractCegarLoop]: Abstraction has 12085 states and 47309 transitions. [2019-12-27 08:32:56,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:32:56,834 INFO L276 IsEmpty]: Start isEmpty. Operand 12085 states and 47309 transitions. [2019-12-27 08:32:56,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:32:56,837 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:32:56,837 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:32:56,838 INFO L410 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 08:32:56,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:32:56,838 INFO L82 PathProgramCache]: Analyzing trace with hash -2038302932, now seen corresponding path program 1 times [2019-12-27 08:32:56,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:32:56,838 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145011754] [2019-12-27 08:32:56,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:32:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 08:32:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 08:32:56,863 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 08:32:56,864 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 08:32:56,864 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 08:32:56,864 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-27 08:32:56,878 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,878 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,878 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,878 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,878 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,878 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,879 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,879 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,879 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,879 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,879 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,879 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,879 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,880 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,880 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,880 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,880 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,880 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,880 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,880 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,881 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,881 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,881 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,881 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,881 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,881 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,881 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,882 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,882 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,882 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,882 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,882 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,882 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,882 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,883 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,883 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,883 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,883 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,883 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,883 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,883 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,884 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,884 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,884 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,884 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,884 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,884 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,885 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,885 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,885 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,885 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,885 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,885 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,885 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,886 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,886 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,886 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,886 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,886 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,886 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,887 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,887 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,887 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,887 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,887 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,887 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,887 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,887 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,888 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,888 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,888 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,888 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,888 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,888 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,888 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,889 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,889 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,889 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,889 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,890 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,890 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,890 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,890 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,890 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,890 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,890 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,890 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,891 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,891 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,891 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,891 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,891 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,891 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,891 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,891 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,892 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,892 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,892 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,892 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,892 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,892 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,892 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,893 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,893 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,893 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,893 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,893 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,893 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,893 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,893 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,894 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,894 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,894 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,894 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,894 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,894 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,894 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,894 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,895 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,895 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,895 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,895 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,895 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,895 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,895 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,896 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,896 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,896 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,896 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,896 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,896 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,897 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,897 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,899 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,899 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,899 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,900 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,900 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,900 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,900 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,900 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,901 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,902 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,902 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,902 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,902 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,902 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,902 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,902 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,904 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,904 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,904 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,904 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,904 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,904 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,905 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,905 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,906 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,906 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,906 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,906 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,907 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,907 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,907 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,907 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,909 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,909 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,909 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,909 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,910 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,910 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,911 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,911 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,911 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,911 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,912 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,912 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,914 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,914 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,914 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,914 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,915 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,915 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,916 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,916 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,916 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,916 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,917 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,917 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,918 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,918 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,918 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,918 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,919 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,919 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:32:56,920 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-27 08:32:56,920 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:32:56,920 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:32:56,920 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:32:56,921 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:32:56,921 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:32:56,921 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:32:56,921 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:32:56,921 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:32:56,922 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 173 places, 162 transitions [2019-12-27 08:32:56,923 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 173 places, 162 transitions [2019-12-27 08:32:56,955 INFO L132 PetriNetUnfolder]: 12/192 cut-off events. [2019-12-27 08:32:56,955 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 08:32:56,960 INFO L76 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 192 events. 12/192 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 421 event pairs. 0/173 useless extension candidates. Maximal degree in co-relation 219. Up to 12 conditions per place. [2019-12-27 08:32:56,974 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 173 places, 162 transitions [2019-12-27 08:32:57,008 INFO L132 PetriNetUnfolder]: 12/192 cut-off events. [2019-12-27 08:32:57,008 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 08:32:57,014 INFO L76 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 192 events. 12/192 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 421 event pairs. 0/173 useless extension candidates. Maximal degree in co-relation 219. Up to 12 conditions per place. [2019-12-27 08:32:57,032 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 7304 [2019-12-27 08:32:57,032 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 08:32:59,822 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-12-27 08:33:00,188 WARN L192 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2019-12-27 08:33:00,308 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 08:33:00,317 INFO L206 etLargeBlockEncoding]: Checked pairs total: 14503 [2019-12-27 08:33:00,317 INFO L214 etLargeBlockEncoding]: Total number of compositions: 123 [2019-12-27 08:33:00,318 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 60 transitions [2019-12-27 08:33:57,389 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 186623 states. [2019-12-27 08:33:57,389 INFO L276 IsEmpty]: Start isEmpty. Operand 186623 states. [2019-12-27 08:33:57,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 08:33:57,390 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:33:57,390 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 08:33:57,390 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:33:57,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:33:57,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1258960, now seen corresponding path program 1 times [2019-12-27 08:33:57,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:33:57,391 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408545631] [2019-12-27 08:33:57,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:33:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:33:57,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:33:57,421 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408545631] [2019-12-27 08:33:57,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:33:57,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 08:33:57,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902055843] [2019-12-27 08:33:57,422 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:33:57,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:33:57,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:33:57,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:33:57,423 INFO L87 Difference]: Start difference. First operand 186623 states. Second operand 3 states. [2019-12-27 08:34:06,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:34:06,359 INFO L93 Difference]: Finished difference Result 242286 states and 1521279 transitions. [2019-12-27 08:34:06,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:34:06,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 08:34:06,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:34:07,338 INFO L225 Difference]: With dead ends: 242286 [2019-12-27 08:34:07,338 INFO L226 Difference]: Without dead ends: 226558 [2019-12-27 08:34:07,339 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:34:08,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226558 states. [2019-12-27 08:34:23,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226558 to 198682. [2019-12-27 08:34:23,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198682 states. [2019-12-27 08:34:26,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198682 states to 198682 states and 1265854 transitions. [2019-12-27 08:34:26,753 INFO L78 Accepts]: Start accepts. Automaton has 198682 states and 1265854 transitions. Word has length 3 [2019-12-27 08:34:26,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:34:26,754 INFO L462 AbstractCegarLoop]: Abstraction has 198682 states and 1265854 transitions. [2019-12-27 08:34:26,754 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:34:26,754 INFO L276 IsEmpty]: Start isEmpty. Operand 198682 states and 1265854 transitions. [2019-12-27 08:34:26,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 08:34:26,754 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:34:26,754 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:34:26,754 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:34:26,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:34:26,755 INFO L82 PathProgramCache]: Analyzing trace with hash 540627390, now seen corresponding path program 1 times [2019-12-27 08:34:26,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:34:26,755 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044813019] [2019-12-27 08:34:26,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:34:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:34:26,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:34:26,785 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044813019] [2019-12-27 08:34:26,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:34:26,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:34:26,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138495635] [2019-12-27 08:34:26,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:34:26,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:34:26,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:34:26,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:34:26,787 INFO L87 Difference]: Start difference. First operand 198682 states and 1265854 transitions. Second operand 5 states. [2019-12-27 08:34:40,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:34:40,214 INFO L93 Difference]: Finished difference Result 405850 states and 2493584 transitions. [2019-12-27 08:34:40,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:34:40,214 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 08:34:40,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:34:51,502 INFO L225 Difference]: With dead ends: 405850 [2019-12-27 08:34:51,503 INFO L226 Difference]: Without dead ends: 405418 [2019-12-27 08:34:51,503 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:34:55,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405418 states. [2019-12-27 08:35:03,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405418 to 220810. [2019-12-27 08:35:03,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220810 states. [2019-12-27 08:35:17,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220810 states to 220810 states and 1422135 transitions. [2019-12-27 08:35:17,194 INFO L78 Accepts]: Start accepts. Automaton has 220810 states and 1422135 transitions. Word has length 10 [2019-12-27 08:35:17,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:35:17,194 INFO L462 AbstractCegarLoop]: Abstraction has 220810 states and 1422135 transitions. [2019-12-27 08:35:17,194 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:35:17,194 INFO L276 IsEmpty]: Start isEmpty. Operand 220810 states and 1422135 transitions. [2019-12-27 08:35:17,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 08:35:17,195 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:35:17,195 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:35:17,195 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:35:17,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:35:17,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1439547760, now seen corresponding path program 1 times [2019-12-27 08:35:17,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:35:17,196 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961887616] [2019-12-27 08:35:17,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:35:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:35:17,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 08:35:17,237 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961887616] [2019-12-27 08:35:17,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:35:17,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:35:17,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783043137] [2019-12-27 08:35:17,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:35:17,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:35:17,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:35:17,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:35:17,239 INFO L87 Difference]: Start difference. First operand 220810 states and 1422135 transitions. Second operand 5 states. Received shutdown request... [2019-12-27 08:35:37,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:35:37,723 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-27 08:35:37,727 WARN L227 ceAbstractionStarter]: Timeout [2019-12-27 08:35:37,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 08:35:37 BasicIcfg [2019-12-27 08:35:37,727 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 08:35:37,729 INFO L168 Benchmark]: Toolchain (without parser) took 203523.08 ms. Allocated memory was 137.9 MB in the beginning and 6.0 GB in the end (delta: 5.8 GB). Free memory was 101.3 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 5.7 GB. Max. memory is 7.1 GB. [2019-12-27 08:35:37,729 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 08:35:37,730 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.48 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 100.9 MB in the beginning and 158.6 MB in the end (delta: -57.7 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2019-12-27 08:35:37,730 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.49 ms. Allocated memory is still 200.3 MB. Free memory was 158.6 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 08:35:37,731 INFO L168 Benchmark]: Boogie Preprocessor took 30.29 ms. Allocated memory is still 200.3 MB. Free memory was 156.6 MB in the beginning and 155.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 08:35:37,731 INFO L168 Benchmark]: RCFGBuilder took 525.98 ms. Allocated memory is still 200.3 MB. Free memory was 154.6 MB in the beginning and 133.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-12-27 08:35:37,732 INFO L168 Benchmark]: TraceAbstraction took 202163.55 ms. Allocated memory was 200.3 MB in the beginning and 6.0 GB in the end (delta: 5.8 GB). Free memory was 132.4 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 5.7 GB. Max. memory is 7.1 GB. [2019-12-27 08:35:37,734 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 723.48 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 100.9 MB in the beginning and 158.6 MB in the end (delta: -57.7 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 73.49 ms. Allocated memory is still 200.3 MB. Free memory was 158.6 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.29 ms. Allocated memory is still 200.3 MB. Free memory was 156.6 MB in the beginning and 155.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 525.98 ms. Allocated memory is still 200.3 MB. Free memory was 154.6 MB in the beginning and 133.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 202163.55 ms. Allocated memory was 200.3 MB in the beginning and 6.0 GB in the end (delta: 5.8 GB). Free memory was 132.4 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 5.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.6s, 69 ProgramPointsBefore, 15 ProgramPointsAfterwards, 66 TransitionsBefore, 12 TransitionsAfterwards, 992 CoEnabledTransitionPairs, 7 FixpointIterations, 22 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 519 VarBasedMoverChecksPositive, 3 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 729 CheckedPairsTotal, 57 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.4s, 95 ProgramPointsBefore, 32 ProgramPointsAfterwards, 90 TransitionsBefore, 29 TransitionsAfterwards, 2024 CoEnabledTransitionPairs, 7 FixpointIterations, 31 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 1055 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2838 CheckedPairsTotal, 69 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.3s, 121 ProgramPointsBefore, 44 ProgramPointsAfterwards, 114 TransitionsBefore, 40 TransitionsAfterwards, 3420 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 5 ConcurrentYvCompositions, 4 ChoiceCompositions, 1751 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 6734 CheckedPairsTotal, 89 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.9s, 147 ProgramPointsBefore, 54 ProgramPointsAfterwards, 138 TransitionsBefore, 49 TransitionsAfterwards, 5180 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 5 ConcurrentYvCompositions, 5 ChoiceCompositions, 2756 VarBasedMoverChecksPositive, 53 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 10723 CheckedPairsTotal, 110 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 3.3s, 173 ProgramPointsBefore, 66 ProgramPointsAfterwards, 162 TransitionsBefore, 60 TransitionsAfterwards, 7304 CoEnabledTransitionPairs, 7 FixpointIterations, 58 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 7 ConcurrentYvCompositions, 6 ChoiceCompositions, 3412 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 14503 CheckedPairsTotal, 123 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 675]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 675). Cancelled while BasicCegarLoop was constructing difference of abstraction (220810states) and FLOYD_HOARE automaton (currently 6 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (387637 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 63 locations, 1 error locations. Result: TIMEOUT, OverallTime: 160.8s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 55.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 404 SDslu, 216 SDs, 0 SdLazy, 265 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=220810occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 45.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 212484 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 1734 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown