/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-SemanticLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread/stack_longest-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 07:33:23,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 07:33:23,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 07:33:23,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 07:33:23,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 07:33:23,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 07:33:23,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 07:33:24,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 07:33:24,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 07:33:24,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 07:33:24,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 07:33:24,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 07:33:24,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 07:33:24,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 07:33:24,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 07:33:24,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 07:33:24,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 07:33:24,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 07:33:24,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 07:33:24,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 07:33:24,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 07:33:24,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 07:33:24,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 07:33:24,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 07:33:24,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 07:33:24,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 07:33:24,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 07:33:24,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 07:33:24,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 07:33:24,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 07:33:24,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 07:33:24,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 07:33:24,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 07:33:24,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 07:33:24,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 07:33:24,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 07:33:24,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 07:33:24,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 07:33:24,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 07:33:24,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 07:33:24,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 07:33:24,050 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-SemanticLbe-McrStrategy.epf [2020-04-18 07:33:24,078 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 07:33:24,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 07:33:24,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 07:33:24,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 07:33:24,081 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 07:33:24,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 07:33:24,082 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 07:33:24,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 07:33:24,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 07:33:24,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 07:33:24,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 07:33:24,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 07:33:24,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 07:33:24,084 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 07:33:24,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 07:33:24,084 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 07:33:24,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 07:33:24,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 07:33:24,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 07:33:24,085 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 07:33:24,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 07:33:24,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 07:33:24,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 07:33:24,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 07:33:24,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 07:33:24,086 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 07:33:24,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 07:33:24,087 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 07:33:24,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 07:33:24,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 07:33:24,351 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 07:33:24,365 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 07:33:24,369 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 07:33:24,370 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 07:33:24,371 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 07:33:24,371 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longest-1.i [2020-04-18 07:33:24,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/015e7803b/b0905a2c22b54f5cb09d62ce47c641b6/FLAG9e81d9d0b [2020-04-18 07:33:24,993 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 07:33:24,994 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-1.i [2020-04-18 07:33:25,009 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/015e7803b/b0905a2c22b54f5cb09d62ce47c641b6/FLAG9e81d9d0b [2020-04-18 07:33:25,268 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/015e7803b/b0905a2c22b54f5cb09d62ce47c641b6 [2020-04-18 07:33:25,276 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 07:33:25,293 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 07:33:25,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 07:33:25,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 07:33:25,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 07:33:25,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:33:25" (1/1) ... [2020-04-18 07:33:25,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bc23754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:25, skipping insertion in model container [2020-04-18 07:33:25,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:33:25" (1/1) ... [2020-04-18 07:33:25,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 07:33:25,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 07:33:25,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:33:25,947 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 07:33:26,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:33:26,177 INFO L208 MainTranslator]: Completed translation [2020-04-18 07:33:26,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:26 WrapperNode [2020-04-18 07:33:26,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 07:33:26,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 07:33:26,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 07:33:26,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 07:33:26,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:26" (1/1) ... [2020-04-18 07:33:26,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:26" (1/1) ... [2020-04-18 07:33:26,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 07:33:26,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 07:33:26,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 07:33:26,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 07:33:26,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:26" (1/1) ... [2020-04-18 07:33:26,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:26" (1/1) ... [2020-04-18 07:33:26,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:26" (1/1) ... [2020-04-18 07:33:26,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:26" (1/1) ... [2020-04-18 07:33:26,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:26" (1/1) ... [2020-04-18 07:33:26,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:26" (1/1) ... [2020-04-18 07:33:26,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:26" (1/1) ... [2020-04-18 07:33:26,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 07:33:26,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 07:33:26,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 07:33:26,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 07:33:26,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:26" (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 [2020-04-18 07:33:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-04-18 07:33:26,365 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-04-18 07:33:26,365 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-04-18 07:33:26,366 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-04-18 07:33:26,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 07:33:26,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 07:33:26,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 07:33:26,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 07:33:26,367 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-04-18 07:33:26,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 07:33:26,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 07:33:26,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 07:33:26,369 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 07:33:26,915 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 07:33:26,915 INFO L295 CfgBuilder]: Removed 26 assume(true) statements. [2020-04-18 07:33:26,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:33:26 BoogieIcfgContainer [2020-04-18 07:33:26,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 07:33:26,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 07:33:26,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 07:33:26,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 07:33:26,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:33:25" (1/3) ... [2020-04-18 07:33:26,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58610ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:33:26, skipping insertion in model container [2020-04-18 07:33:26,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:26" (2/3) ... [2020-04-18 07:33:26,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58610ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:33:26, skipping insertion in model container [2020-04-18 07:33:26,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:33:26" (3/3) ... [2020-04-18 07:33:26,929 INFO L109 eAbstractionObserver]: Analyzing ICFG stack_longest-1.i [2020-04-18 07:33:26,939 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 07:33:26,939 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 07:33:26,945 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-04-18 07:33:26,946 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 07:33:26,979 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,979 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,980 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,980 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,980 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,981 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,994 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,994 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,995 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,995 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,995 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,995 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,996 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,996 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,996 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,996 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,996 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,997 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,997 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,997 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,997 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,997 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,998 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,998 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,998 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,998 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,998 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,999 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,999 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,999 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,999 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,999 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:26,999 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,000 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,000 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,000 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,000 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,000 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,000 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,001 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,001 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,001 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,001 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,002 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,002 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,002 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,002 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,002 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,003 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,003 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,003 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,003 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,003 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,004 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,004 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,004 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,004 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,004 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,005 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,005 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,005 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,005 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,005 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,006 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,006 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,006 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,006 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,006 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,008 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,008 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,008 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,008 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,008 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,009 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,009 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,009 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,009 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,009 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,010 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,010 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,010 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,010 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,011 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,011 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,011 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,011 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,012 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,012 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,012 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,012 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,012 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,012 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,013 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,013 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,013 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,013 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,013 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,014 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,014 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,014 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,014 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,015 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,015 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,015 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,015 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,016 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,016 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,016 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,016 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,016 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,017 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,017 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,017 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,017 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,018 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,018 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,018 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,018 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,018 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,019 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,019 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,019 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,019 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,019 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,020 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,020 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,020 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,020 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,020 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,021 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,021 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,021 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,021 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,025 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,025 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,025 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,025 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,026 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,026 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,026 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,026 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,026 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,027 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,027 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,027 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,027 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,027 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,028 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,028 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,028 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,028 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,028 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,028 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,029 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,029 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,029 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,051 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,051 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,052 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,052 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,052 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,052 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,052 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,053 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,053 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,053 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,053 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,053 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,054 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,054 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,054 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,054 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,054 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,055 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,055 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:27,075 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-04-18 07:33:27,095 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:33:27,095 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:33:27,095 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:33:27,095 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:33:27,095 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:33:27,095 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:33:27,096 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:33:27,096 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:33:27,117 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 145 transitions, 312 flow [2020-04-18 07:33:27,119 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-04-18 07:33:27,194 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-04-18 07:33:27,194 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-18 07:33:27,206 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 145 events. 11/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 385 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-04-18 07:33:27,217 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-04-18 07:33:27,258 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-04-18 07:33:27,259 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-18 07:33:27,261 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 145 events. 11/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 385 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-04-18 07:33:27,270 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 6532 [2020-04-18 07:33:27,271 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-18 07:33:29,715 WARN L192 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-04-18 07:33:30,768 WARN L192 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-04-18 07:33:30,970 WARN L192 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-04-18 07:33:31,193 INFO L206 etLargeBlockEncoding]: Checked pairs total: 7856 [2020-04-18 07:33:31,193 INFO L214 etLargeBlockEncoding]: Total number of compositions: 125 [2020-04-18 07:33:31,197 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 40 transitions, 102 flow [2020-04-18 07:33:31,221 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 335 states. [2020-04-18 07:33:31,223 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-04-18 07:33:31,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 07:33:31,230 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:33:31,231 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-04-18 07:33:31,231 INFO L427 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:33:31,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:31,237 INFO L82 PathProgramCache]: Analyzing trace with hash 475987800, now seen corresponding path program 1 times [2020-04-18 07:33:31,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:33:31,245 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1654692930] [2020-04-18 07:33:31,262 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:31,274 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 07:33:31,278 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-04-18 07:33:31,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 07:33:31,279 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:33:31,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:31,279 INFO L82 PathProgramCache]: Analyzing trace with hash 475987800, now seen corresponding path program 2 times [2020-04-18 07:33:31,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:33:31,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245201825] [2020-04-18 07:33:31,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:33:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:33:31,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:33:31,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245201825] [2020-04-18 07:33:31,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:33:31,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 07:33:31,518 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:33:31,520 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:31,524 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 07:33:31,524 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:33:31,556 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:33:31,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:33:31,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:33:31,562 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2020-04-18 07:33:31,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:31,567 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2020-04-18 07:33:31,567 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-04-18 07:33:31,567 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:33:31,568 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1654692930] [2020-04-18 07:33:31,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:33:31,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 07:33:31,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1654692930] [2020-04-18 07:33:31,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 07:33:31,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:33:31,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:33:31,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:33:31,576 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 3 states. [2020-04-18 07:33:31,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:31,670 INFO L93 Difference]: Finished difference Result 602 states and 1541 transitions. [2020-04-18 07:33:31,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 07:33:31,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-04-18 07:33:31,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:33:31,706 INFO L225 Difference]: With dead ends: 602 [2020-04-18 07:33:31,706 INFO L226 Difference]: Without dead ends: 580 [2020-04-18 07:33:31,707 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:33:31,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-04-18 07:33:31,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 427. [2020-04-18 07:33:31,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-04-18 07:33:31,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 1148 transitions. [2020-04-18 07:33:31,807 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 1148 transitions. Word has length 6 [2020-04-18 07:33:31,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:33:31,807 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 1148 transitions. [2020-04-18 07:33:31,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 07:33:31,807 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 1148 transitions. [2020-04-18 07:33:31,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 07:33:31,809 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:33:31,809 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:33:31,809 INFO L427 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:33:31,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:31,809 INFO L82 PathProgramCache]: Analyzing trace with hash 307066949, now seen corresponding path program 1 times [2020-04-18 07:33:31,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:33:31,810 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [759535343] [2020-04-18 07:33:31,810 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:31,811 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 07:33:31,811 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-04-18 07:33:31,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 07:33:31,812 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:33:31,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:31,812 INFO L82 PathProgramCache]: Analyzing trace with hash 307066949, now seen corresponding path program 2 times [2020-04-18 07:33:31,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:33:31,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101417660] [2020-04-18 07:33:31,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:33:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:33:31,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:33:31,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101417660] [2020-04-18 07:33:31,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:33:31,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 07:33:31,952 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:33:31,953 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:31,954 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 07:33:31,954 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:33:31,957 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:33:31,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:33:31,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:33:31,958 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2020-04-18 07:33:31,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:31,959 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2020-04-18 07:33:31,959 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-04-18 07:33:31,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:33:31,961 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [759535343] [2020-04-18 07:33:31,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:33:31,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 07:33:31,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [759535343] [2020-04-18 07:33:31,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 07:33:31,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:33:31,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:33:31,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:33:31,963 INFO L87 Difference]: Start difference. First operand 427 states and 1148 transitions. Second operand 3 states. [2020-04-18 07:33:31,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:31,981 INFO L93 Difference]: Finished difference Result 530 states and 1370 transitions. [2020-04-18 07:33:31,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 07:33:31,985 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-18 07:33:31,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:33:31,992 INFO L225 Difference]: With dead ends: 530 [2020-04-18 07:33:31,993 INFO L226 Difference]: Without dead ends: 508 [2020-04-18 07:33:31,994 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:33:32,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-04-18 07:33:32,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 468. [2020-04-18 07:33:32,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-04-18 07:33:32,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 1250 transitions. [2020-04-18 07:33:32,029 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 1250 transitions. Word has length 8 [2020-04-18 07:33:32,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:33:32,030 INFO L479 AbstractCegarLoop]: Abstraction has 468 states and 1250 transitions. [2020-04-18 07:33:32,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 07:33:32,031 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 1250 transitions. [2020-04-18 07:33:32,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 07:33:32,032 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:33:32,032 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:33:32,033 INFO L427 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:33:32,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:32,033 INFO L82 PathProgramCache]: Analyzing trace with hash -941555270, now seen corresponding path program 1 times [2020-04-18 07:33:32,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:33:32,034 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [102881908] [2020-04-18 07:33:32,034 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:32,035 INFO L259 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-04-18 07:33:32,035 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-04-18 07:33:32,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 07:33:32,035 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:33:32,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:32,036 INFO L82 PathProgramCache]: Analyzing trace with hash -941555270, now seen corresponding path program 2 times [2020-04-18 07:33:32,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:33:32,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503851533] [2020-04-18 07:33:32,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:33:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:33:32,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:33:32,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503851533] [2020-04-18 07:33:32,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:33:32,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 07:33:32,150 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:33:32,151 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:32,152 INFO L259 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-04-18 07:33:32,153 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:33:32,174 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:33:32,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:33:32,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:33:32,175 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2020-04-18 07:33:32,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:32,178 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2020-04-18 07:33:32,178 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2020-04-18 07:33:32,178 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:33:32,179 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [102881908] [2020-04-18 07:33:32,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:33:32,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 07:33:32,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [102881908] [2020-04-18 07:33:32,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 07:33:32,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:33:32,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:33:32,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:33:32,180 INFO L87 Difference]: Start difference. First operand 468 states and 1250 transitions. Second operand 3 states. [2020-04-18 07:33:32,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:32,211 INFO L93 Difference]: Finished difference Result 504 states and 1343 transitions. [2020-04-18 07:33:32,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 07:33:32,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-04-18 07:33:32,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:33:32,219 INFO L225 Difference]: With dead ends: 504 [2020-04-18 07:33:32,220 INFO L226 Difference]: Without dead ends: 504 [2020-04-18 07:33:32,220 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:33:32,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-04-18 07:33:32,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-04-18 07:33:32,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-04-18 07:33:32,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 1343 transitions. [2020-04-18 07:33:32,252 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 1343 transitions. Word has length 10 [2020-04-18 07:33:32,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:33:32,252 INFO L479 AbstractCegarLoop]: Abstraction has 504 states and 1343 transitions. [2020-04-18 07:33:32,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 07:33:32,252 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 1343 transitions. [2020-04-18 07:33:32,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 07:33:32,260 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:33:32,260 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:33:32,261 INFO L427 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:33:32,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:32,261 INFO L82 PathProgramCache]: Analyzing trace with hash 184198130, now seen corresponding path program 1 times [2020-04-18 07:33:32,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:33:32,261 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [280533410] [2020-04-18 07:33:32,262 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:32,262 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-04-18 07:33:32,263 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-04-18 07:33:32,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 07:33:32,263 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:33:32,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:32,264 INFO L82 PathProgramCache]: Analyzing trace with hash 184198130, now seen corresponding path program 2 times [2020-04-18 07:33:32,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:33:32,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145644513] [2020-04-18 07:33:32,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:33:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:33:32,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:33:32,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145644513] [2020-04-18 07:33:32,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876919324] [2020-04-18 07:33:32,375 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:33:32,471 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 07:33:32,471 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 07:33:32,473 INFO L264 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2020-04-18 07:33:32,478 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 07:33:32,511 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:33:32,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 07:33:32,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-04-18 07:33:32,512 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:33:32,514 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:32,516 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-04-18 07:33:32,516 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:33:32,539 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:33:32,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:33:32,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:33:32,540 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 7 states. [2020-04-18 07:33:32,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:32,576 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-04-18 07:33:32,576 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-04-18 07:33:32,576 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:33:32,577 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [280533410] [2020-04-18 07:33:32,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:33:32,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 07:33:32,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [280533410] [2020-04-18 07:33:32,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:33:32,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:33:32,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:33:32,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 07:33:32,578 INFO L87 Difference]: Start difference. First operand 504 states and 1343 transitions. Second operand 7 states. [2020-04-18 07:33:32,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:32,729 INFO L93 Difference]: Finished difference Result 940 states and 2424 transitions. [2020-04-18 07:33:32,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 07:33:32,729 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-04-18 07:33:32,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:33:32,737 INFO L225 Difference]: With dead ends: 940 [2020-04-18 07:33:32,737 INFO L226 Difference]: Without dead ends: 940 [2020-04-18 07:33:32,737 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 07:33:32,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2020-04-18 07:33:32,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 688. [2020-04-18 07:33:32,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 688 states. [2020-04-18 07:33:32,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 1842 transitions. [2020-04-18 07:33:32,761 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 1842 transitions. Word has length 14 [2020-04-18 07:33:32,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:33:32,761 INFO L479 AbstractCegarLoop]: Abstraction has 688 states and 1842 transitions. [2020-04-18 07:33:32,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:33:32,761 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 1842 transitions. [2020-04-18 07:33:32,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-18 07:33:32,764 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:33:32,764 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:33:32,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:33:32,969 INFO L427 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:33:32,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:32,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1859541019, now seen corresponding path program 1 times [2020-04-18 07:33:32,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:33:32,970 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1797559735] [2020-04-18 07:33:32,971 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:32,972 INFO L259 McrAutomatonBuilder]: Finished intersection with 65 states and 112 transitions. [2020-04-18 07:33:32,973 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-04-18 07:33:32,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-18 07:33:32,974 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:33:32,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:32,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1552647717, now seen corresponding path program 2 times [2020-04-18 07:33:32,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:33:32,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459981325] [2020-04-18 07:33:32,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:33:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:33:33,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:33:33,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459981325] [2020-04-18 07:33:33,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:33:33,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 07:33:33,028 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:33:33,031 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:33,039 INFO L259 McrAutomatonBuilder]: Finished intersection with 47 states and 76 transitions. [2020-04-18 07:33:33,039 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:33:33,064 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 07:33:33,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 07:33:33,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 07:33:33,065 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 5 states. [2020-04-18 07:33:33,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:33,104 INFO L93 Difference]: Finished difference Result 65 states and 112 transitions. [2020-04-18 07:33:33,104 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 112 transitions. [2020-04-18 07:33:33,104 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:33:33,105 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1797559735] [2020-04-18 07:33:33,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:33:33,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 07:33:33,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1797559735] [2020-04-18 07:33:33,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 07:33:33,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:33:33,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 07:33:33,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:33:33,106 INFO L87 Difference]: Start difference. First operand 688 states and 1842 transitions. Second operand 5 states. [2020-04-18 07:33:33,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:33,223 INFO L93 Difference]: Finished difference Result 434 states and 989 transitions. [2020-04-18 07:33:33,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 07:33:33,223 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-04-18 07:33:33,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:33:33,226 INFO L225 Difference]: With dead ends: 434 [2020-04-18 07:33:33,226 INFO L226 Difference]: Without dead ends: 430 [2020-04-18 07:33:33,227 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 07:33:33,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-04-18 07:33:33,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 313. [2020-04-18 07:33:33,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-04-18 07:33:33,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 700 transitions. [2020-04-18 07:33:33,238 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 700 transitions. Word has length 16 [2020-04-18 07:33:33,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:33:33,238 INFO L479 AbstractCegarLoop]: Abstraction has 313 states and 700 transitions. [2020-04-18 07:33:33,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 07:33:33,238 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 700 transitions. [2020-04-18 07:33:33,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 07:33:33,239 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:33:33,239 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:33:33,239 INFO L427 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:33:33,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:33,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1794318204, now seen corresponding path program 1 times [2020-04-18 07:33:33,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:33:33,240 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1714013598] [2020-04-18 07:33:33,241 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:33,242 INFO L259 McrAutomatonBuilder]: Finished intersection with 72 states and 125 transitions. [2020-04-18 07:33:33,243 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-04-18 07:33:33,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 07:33:33,243 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:33:33,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:33,244 INFO L82 PathProgramCache]: Analyzing trace with hash -887438450, now seen corresponding path program 2 times [2020-04-18 07:33:33,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:33:33,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797302783] [2020-04-18 07:33:33,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:33:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:33:33,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:33:33,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797302783] [2020-04-18 07:33:33,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:33:33,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 07:33:33,294 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:33:33,296 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:33,304 INFO L259 McrAutomatonBuilder]: Finished intersection with 49 states and 79 transitions. [2020-04-18 07:33:33,304 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:33:33,328 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 07:33:33,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 07:33:33,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 07:33:33,329 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 5 states. [2020-04-18 07:33:33,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:33,367 INFO L93 Difference]: Finished difference Result 75 states and 127 transitions. [2020-04-18 07:33:33,367 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 127 transitions. [2020-04-18 07:33:33,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 07:33:33,368 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 07:33:33,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:33,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1794318204, now seen corresponding path program 3 times [2020-04-18 07:33:33,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:33:33,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264034045] [2020-04-18 07:33:33,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:33:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:33:33,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:33:33,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264034045] [2020-04-18 07:33:33,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:33:33,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 07:33:33,421 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:33:33,423 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:33,430 INFO L259 McrAutomatonBuilder]: Finished intersection with 40 states and 61 transitions. [2020-04-18 07:33:33,430 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:33:33,463 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 07:33:33,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 07:33:33,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-04-18 07:33:33,464 INFO L87 Difference]: Start difference. First operand 75 states and 127 transitions. Second operand 5 states. [2020-04-18 07:33:33,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:33,531 INFO L93 Difference]: Finished difference Result 81 states and 134 transitions. [2020-04-18 07:33:33,532 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 134 transitions. [2020-04-18 07:33:33,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:33:33,532 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1714013598] [2020-04-18 07:33:33,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:33:33,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 07:33:33,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1714013598] [2020-04-18 07:33:33,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 07:33:33,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:33:33,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 07:33:33,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-04-18 07:33:33,534 INFO L87 Difference]: Start difference. First operand 313 states and 700 transitions. Second operand 8 states. [2020-04-18 07:33:33,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:33,835 INFO L93 Difference]: Finished difference Result 511 states and 1132 transitions. [2020-04-18 07:33:33,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-04-18 07:33:33,836 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-04-18 07:33:33,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:33:33,840 INFO L225 Difference]: With dead ends: 511 [2020-04-18 07:33:33,840 INFO L226 Difference]: Without dead ends: 511 [2020-04-18 07:33:33,841 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2020-04-18 07:33:33,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2020-04-18 07:33:33,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 351. [2020-04-18 07:33:33,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2020-04-18 07:33:33,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 791 transitions. [2020-04-18 07:33:33,858 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 791 transitions. Word has length 17 [2020-04-18 07:33:33,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:33:33,859 INFO L479 AbstractCegarLoop]: Abstraction has 351 states and 791 transitions. [2020-04-18 07:33:33,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 07:33:33,859 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 791 transitions. [2020-04-18 07:33:33,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 07:33:33,861 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:33:33,861 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:33:33,861 INFO L427 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:33:33,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:33,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1963207549, now seen corresponding path program 1 times [2020-04-18 07:33:33,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:33:33,863 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [854263279] [2020-04-18 07:33:33,864 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:33,866 INFO L259 McrAutomatonBuilder]: Finished intersection with 112 states and 201 transitions. [2020-04-18 07:33:33,867 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states. [2020-04-18 07:33:33,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 07:33:33,869 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:33:33,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:33,869 INFO L82 PathProgramCache]: Analyzing trace with hash 761562703, now seen corresponding path program 2 times [2020-04-18 07:33:33,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:33:33,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193320573] [2020-04-18 07:33:33,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:33:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:33:33,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:33:33,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193320573] [2020-04-18 07:33:33,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:33:33,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 07:33:33,958 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:33:33,963 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:33,972 INFO L259 McrAutomatonBuilder]: Finished intersection with 42 states and 61 transitions. [2020-04-18 07:33:33,973 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:33:34,012 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 07:33:34,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:33:34,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:33:34,014 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 6 states. [2020-04-18 07:33:34,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:34,090 INFO L93 Difference]: Finished difference Result 130 states and 228 transitions. [2020-04-18 07:33:34,090 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 228 transitions. [2020-04-18 07:33:34,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 07:33:34,092 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 07:33:34,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:34,092 INFO L82 PathProgramCache]: Analyzing trace with hash -2059940337, now seen corresponding path program 3 times [2020-04-18 07:33:34,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:33:34,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843412888] [2020-04-18 07:33:34,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:33:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:33:34,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:33:34,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843412888] [2020-04-18 07:33:34,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:33:34,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 07:33:34,152 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:33:34,156 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:34,165 INFO L259 McrAutomatonBuilder]: Finished intersection with 55 states and 87 transitions. [2020-04-18 07:33:34,165 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:33:34,187 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 07:33:34,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 07:33:34,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-04-18 07:33:34,187 INFO L87 Difference]: Start difference. First operand 130 states and 228 transitions. Second operand 5 states. [2020-04-18 07:33:34,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:34,229 INFO L93 Difference]: Finished difference Result 137 states and 234 transitions. [2020-04-18 07:33:34,230 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 234 transitions. [2020-04-18 07:33:34,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 07:33:34,232 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 07:33:34,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:34,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1963207549, now seen corresponding path program 4 times [2020-04-18 07:33:34,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:33:34,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891266439] [2020-04-18 07:33:34,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:33:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:33:34,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:33:34,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891266439] [2020-04-18 07:33:34,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:33:34,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 07:33:34,712 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:33:34,717 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:34,728 INFO L259 McrAutomatonBuilder]: Finished intersection with 44 states and 65 transitions. [2020-04-18 07:33:34,728 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:33:35,020 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2020-04-18 07:33:35,021 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 07:33:35,024 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 07:33:35,114 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 07:33:35,213 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 07:33:35,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-04-18 07:33:35,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2020-04-18 07:33:35,214 INFO L87 Difference]: Start difference. First operand 137 states and 234 transitions. Second operand 14 states. [2020-04-18 07:33:36,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:36,912 INFO L93 Difference]: Finished difference Result 230 states and 388 transitions. [2020-04-18 07:33:36,912 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 388 transitions. [2020-04-18 07:33:36,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 07:33:36,913 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 07:33:36,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:36,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1358260699, now seen corresponding path program 5 times [2020-04-18 07:33:36,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:33:36,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859541442] [2020-04-18 07:33:36,914 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:33:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:33:37,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:33:37,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859541442] [2020-04-18 07:33:37,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:33:37,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 07:33:37,269 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:33:37,272 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:37,277 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 45 transitions. [2020-04-18 07:33:37,278 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:33:37,426 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 07:33:37,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 07:33:37,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=942, Unknown=0, NotChecked=0, Total=1190 [2020-04-18 07:33:37,427 INFO L87 Difference]: Start difference. First operand 230 states and 388 transitions. Second operand 11 states. [2020-04-18 07:33:38,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:38,031 INFO L93 Difference]: Finished difference Result 230 states and 388 transitions. [2020-04-18 07:33:38,031 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 388 transitions. [2020-04-18 07:33:38,032 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:33:38,033 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [854263279] [2020-04-18 07:33:38,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:33:38,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-04-18 07:33:38,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [854263279] [2020-04-18 07:33:38,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-04-18 07:33:38,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:33:38,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-04-18 07:33:38,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=1112, Unknown=0, NotChecked=0, Total=1406 [2020-04-18 07:33:38,035 INFO L87 Difference]: Start difference. First operand 351 states and 791 transitions. Second operand 21 states. [2020-04-18 07:33:40,252 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-04-18 07:33:41,018 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-04-18 07:33:41,747 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-04-18 07:33:42,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:42,299 INFO L93 Difference]: Finished difference Result 813 states and 1794 transitions. [2020-04-18 07:33:42,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-04-18 07:33:42,299 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 21 [2020-04-18 07:33:42,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:33:42,305 INFO L225 Difference]: With dead ends: 813 [2020-04-18 07:33:42,305 INFO L226 Difference]: Without dead ends: 799 [2020-04-18 07:33:42,307 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 88 SyntacticMatches, 6 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1227 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=781, Invalid=3509, Unknown=0, NotChecked=0, Total=4290 [2020-04-18 07:33:42,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2020-04-18 07:33:42,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 481. [2020-04-18 07:33:42,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-04-18 07:33:42,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 1106 transitions. [2020-04-18 07:33:42,322 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 1106 transitions. Word has length 21 [2020-04-18 07:33:42,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:33:42,323 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 1106 transitions. [2020-04-18 07:33:42,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-04-18 07:33:42,323 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 1106 transitions. [2020-04-18 07:33:42,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-04-18 07:33:42,324 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:33:42,324 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-04-18 07:33:42,324 INFO L427 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:33:42,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:42,325 INFO L82 PathProgramCache]: Analyzing trace with hash 920456844, now seen corresponding path program 3 times [2020-04-18 07:33:42,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:33:42,325 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [13842437] [2020-04-18 07:33:42,326 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:42,326 INFO L259 McrAutomatonBuilder]: Finished intersection with 23 states and 22 transitions. [2020-04-18 07:33:42,327 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-04-18 07:33:42,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-04-18 07:33:42,327 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:33:42,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:42,327 INFO L82 PathProgramCache]: Analyzing trace with hash 920456844, now seen corresponding path program 4 times [2020-04-18 07:33:42,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:33:42,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658312188] [2020-04-18 07:33:42,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:33:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:33:42,392 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:33:42,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658312188] [2020-04-18 07:33:42,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218724101] [2020-04-18 07:33:42,393 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2020-04-18 07:33:42,470 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-04-18 07:33:42,471 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 07:33:42,472 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 6 conjunts are in the unsatisfiable core [2020-04-18 07:33:42,474 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 07:33:42,496 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:33:42,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 07:33:42,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-04-18 07:33:42,497 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:33:42,500 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:42,504 INFO L259 McrAutomatonBuilder]: Finished intersection with 23 states and 22 transitions. [2020-04-18 07:33:42,504 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:33:42,537 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:33:42,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 07:33:42,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-04-18 07:33:42,538 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 9 states. [2020-04-18 07:33:42,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:42,581 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-04-18 07:33:42,581 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2020-04-18 07:33:42,582 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:33:42,582 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [13842437] [2020-04-18 07:33:42,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:33:42,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 07:33:42,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [13842437] [2020-04-18 07:33:42,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 07:33:42,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:33:42,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 07:33:42,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:33:42,584 INFO L87 Difference]: Start difference. First operand 481 states and 1106 transitions. Second operand 9 states. [2020-04-18 07:33:42,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:42,670 INFO L93 Difference]: Finished difference Result 722 states and 1617 transitions. [2020-04-18 07:33:42,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 07:33:42,671 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-04-18 07:33:42,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:33:42,676 INFO L225 Difference]: With dead ends: 722 [2020-04-18 07:33:42,676 INFO L226 Difference]: Without dead ends: 722 [2020-04-18 07:33:42,677 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:33:42,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2020-04-18 07:33:42,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 571. [2020-04-18 07:33:42,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-04-18 07:33:42,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 1305 transitions. [2020-04-18 07:33:42,693 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 1305 transitions. Word has length 22 [2020-04-18 07:33:42,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:33:42,693 INFO L479 AbstractCegarLoop]: Abstraction has 571 states and 1305 transitions. [2020-04-18 07:33:42,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 07:33:42,693 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 1305 transitions. [2020-04-18 07:33:42,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-04-18 07:33:42,695 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:33:42,696 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:33:42,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:33:42,899 INFO L427 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:33:42,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:42,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1348112131, now seen corresponding path program 1 times [2020-04-18 07:33:42,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:33:42,900 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1696120443] [2020-04-18 07:33:42,901 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:42,903 INFO L259 McrAutomatonBuilder]: Finished intersection with 142 states and 258 transitions. [2020-04-18 07:33:42,904 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2020-04-18 07:33:42,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-04-18 07:33:42,905 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:33:42,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:42,906 INFO L82 PathProgramCache]: Analyzing trace with hash -58093501, now seen corresponding path program 2 times [2020-04-18 07:33:42,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:33:42,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581524835] [2020-04-18 07:33:42,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:33:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:33:42,952 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-04-18 07:33:42,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581524835] [2020-04-18 07:33:42,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:33:42,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 07:33:42,954 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:33:42,958 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:42,969 INFO L259 McrAutomatonBuilder]: Finished intersection with 54 states and 82 transitions. [2020-04-18 07:33:42,969 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:33:43,000 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 07:33:43,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:33:43,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:33:43,002 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 6 states. [2020-04-18 07:33:43,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:43,156 INFO L93 Difference]: Finished difference Result 169 states and 300 transitions. [2020-04-18 07:33:43,156 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 300 transitions. [2020-04-18 07:33:43,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-04-18 07:33:43,157 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 07:33:43,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:43,157 INFO L82 PathProgramCache]: Analyzing trace with hash -97992475, now seen corresponding path program 3 times [2020-04-18 07:33:43,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:33:43,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060230181] [2020-04-18 07:33:43,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:33:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:33:43,214 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-04-18 07:33:43,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060230181] [2020-04-18 07:33:43,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:33:43,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 07:33:43,215 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:33:43,220 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:43,230 INFO L259 McrAutomatonBuilder]: Finished intersection with 50 states and 74 transitions. [2020-04-18 07:33:43,230 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:33:43,251 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 07:33:43,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 07:33:43,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-04-18 07:33:43,252 INFO L87 Difference]: Start difference. First operand 169 states and 300 transitions. Second operand 5 states. [2020-04-18 07:33:43,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:43,305 INFO L93 Difference]: Finished difference Result 190 states and 326 transitions. [2020-04-18 07:33:43,305 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 326 transitions. [2020-04-18 07:33:43,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-04-18 07:33:43,306 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 07:33:43,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:43,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1348112131, now seen corresponding path program 4 times [2020-04-18 07:33:43,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:33:43,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355543767] [2020-04-18 07:33:43,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:33:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 07:33:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 07:33:43,445 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 07:33:43,446 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 07:33:43,446 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 07:33:43,447 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-04-18 07:33:43,447 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-04-18 07:33:43,448 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-04-18 07:33:43,454 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [558] [558] L3-->L977-1: Formula: (and (let ((.cse0 (mod t1Thread1of1ForFork0_~tmp~0_In-1163541329 4294967296))) (let ((.cse1 (<= .cse0 2147483647))) (or (and (= (+ .cse0 (- 4294967296)) |t1Thread1of1ForFork0_push_#in~x_Out-1163541329|) (not .cse1)) (and .cse1 (= |t1Thread1of1ForFork0_push_#in~x_Out-1163541329| .cse0))))) (= |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_In-1163541329| t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out-1163541329) (not (= 0 t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out-1163541329)) (= |~#arr~0.base_In-1163541329| |t1Thread1of1ForFork0_push_#in~stack.base_Out-1163541329|) (= |~#arr~0.offset_In-1163541329| |t1Thread1of1ForFork0_push_#in~stack.offset_Out-1163541329|)) InVars {~#arr~0.offset=|~#arr~0.offset_In-1163541329|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In-1163541329, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_In-1163541329|, ~#arr~0.base=|~#arr~0.base_In-1163541329|} OutVars{~#arr~0.offset=|~#arr~0.offset_In-1163541329|, t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out-1163541329|, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out-1163541329, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out-1163541329|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In-1163541329, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out-1163541329|, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_In-1163541329|, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out-1163541329|, ~#arr~0.base=|~#arr~0.base_In-1163541329|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_push_#in~x, t1Thread1of1ForFork0_assume_abort_if_not_~cond, t1Thread1of1ForFork0_push_#in~stack.base, t1Thread1of1ForFork0_push_#res, t1Thread1of1ForFork0_push_#in~stack.offset] because there is no mapped edge [2020-04-18 07:33:43,457 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [559] [559] L977-2-->L980: Formula: (and (= ~flag~0_Out1376185433 1) (not (= |t1Thread1of1ForFork0_#t~ret44_In1376185433| (- 1))) (<= 0 (+ |t1Thread1of1ForFork0_#t~ret44_In1376185433| 2147483648)) (<= |t1Thread1of1ForFork0_#t~ret44_In1376185433| 2147483647)) InVars {t1Thread1of1ForFork0_#t~ret44=|t1Thread1of1ForFork0_#t~ret44_In1376185433|} OutVars{t1Thread1of1ForFork0_#t~ret44=|t1Thread1of1ForFork0_#t~ret44_Out1376185433|, ~flag~0=~flag~0_Out1376185433} AuxVars[] AssignedVars[t1Thread1of1ForFork0_#t~ret44, ~flag~0] because there is no mapped edge [2020-04-18 07:33:43,460 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [570] [570] L992-4-->L987-6: Formula: (and (= t2Thread1of1ForFork1_~i~1_Out628885194 (+ t2Thread1of1ForFork1_~i~1_In628885194 1)) (not (= (- 2) |t2Thread1of1ForFork1_#t~ret47_In628885194|)) (= |#pthreadsMutex_Out628885194| (store |#pthreadsMutex_In628885194| |~#m~0.base_In628885194| (store (select |#pthreadsMutex_In628885194| |~#m~0.base_In628885194|) |~#m~0.offset_In628885194| 0)))) InVars {#pthreadsMutex=|#pthreadsMutex_In628885194|, ~#m~0.base=|~#m~0.base_In628885194|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_In628885194|, ~#m~0.offset=|~#m~0.offset_In628885194|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In628885194} OutVars{#pthreadsMutex=|#pthreadsMutex_Out628885194|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_Out628885194|, ~#m~0.base=|~#m~0.base_In628885194|, ~#m~0.offset=|~#m~0.offset_In628885194|, t2Thread1of1ForFork1_#t~post45=|t2Thread1of1ForFork1_#t~post45_Out628885194|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out628885194} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork1_#t~ret47, t2Thread1of1ForFork1_#t~post45, t2Thread1of1ForFork1_~i~1] because there is no mapped edge [2020-04-18 07:33:43,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:33:43 BasicIcfg [2020-04-18 07:33:43,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 07:33:43,540 INFO L168 Benchmark]: Toolchain (without parser) took 18261.50 ms. Allocated memory was 140.0 MB in the beginning and 380.1 MB in the end (delta: 240.1 MB). Free memory was 100.1 MB in the beginning and 289.5 MB in the end (delta: -189.3 MB). Peak memory consumption was 50.8 MB. Max. memory is 7.1 GB. [2020-04-18 07:33:43,544 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-04-18 07:33:43,545 INFO L168 Benchmark]: CACSL2BoogieTranslator took 884.48 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 98.1 MB in the beginning and 133.7 MB in the end (delta: -35.6 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. [2020-04-18 07:33:43,545 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.11 ms. Allocated memory is still 202.9 MB. Free memory was 133.7 MB in the beginning and 130.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-04-18 07:33:43,546 INFO L168 Benchmark]: Boogie Preprocessor took 37.24 ms. Allocated memory is still 202.9 MB. Free memory was 130.4 MB in the beginning and 129.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 07:33:43,548 INFO L168 Benchmark]: RCFGBuilder took 613.73 ms. Allocated memory is still 202.9 MB. Free memory was 129.0 MB in the beginning and 95.4 MB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. [2020-04-18 07:33:43,549 INFO L168 Benchmark]: TraceAbstraction took 16617.02 ms. Allocated memory was 202.9 MB in the beginning and 380.1 MB in the end (delta: 177.2 MB). Free memory was 95.4 MB in the beginning and 289.5 MB in the end (delta: -194.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 07:33:43,556 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 884.48 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 98.1 MB in the beginning and 133.7 MB in the end (delta: -35.6 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 89.11 ms. Allocated memory is still 202.9 MB. Free memory was 133.7 MB in the beginning and 130.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.24 ms. Allocated memory is still 202.9 MB. Free memory was 130.4 MB in the beginning and 129.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 613.73 ms. Allocated memory is still 202.9 MB. Free memory was 129.0 MB in the beginning and 95.4 MB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16617.02 ms. Allocated memory was 202.9 MB in the beginning and 380.1 MB in the end (delta: 177.2 MB). Free memory was 95.4 MB in the beginning and 289.5 MB in the end (delta: -194.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 4.0s, 140 ProgramPointsBefore, 40 ProgramPointsAfterwards, 145 TransitionsBefore, 40 TransitionsAfterwards, 6532 CoEnabledTransitionPairs, 7 FixpointIterations, 26 TrivialSequentialCompositions, 80 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 5 ChoiceCompositions, 3624 VarBasedMoverChecksPositive, 54 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 53 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 7856 CheckedPairsTotal, 125 TotalNumberOfCompositions - CounterExampleResult [Line: 922]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L916] 0 static int top=0; [L917] 0 static unsigned int arr[(800)]; [L918] 0 pthread_mutex_t m; [L919] 0 _Bool flag=(0); [L1001] 0 pthread_t id1, id2; [L1003] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={5:0}, flag=0, m={9:0}, top=0] [L970] 1 int i; [L971] 1 unsigned int tmp; [L972] 1 i=0 VAL [arr={5:0}, flag=0, m={9:0}, top=0] [L972] COND TRUE 1 i<(800) [L975] 1 tmp = __VERIFIER_nondet_uint() [L942] COND FALSE 1 !(top==(800)) [L1004] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={5:0}, flag=0, m={9:0}, top=0] [L986] 2 int i; [L987] 2 i=0 VAL [arr={5:0}, flag=0, m={9:0}, top=0] [L934] 1 return top; [L949] 1 stack[get_top()] = x [L926] 1 top++ [L952] 1 return 0; [L972] 1 i++ VAL [arr={5:0}, flag=1, m={9:0}, top=1] [L987] COND TRUE 2 i<(800) [L990] COND TRUE 2 \read(flag) [L934] 2 return top; [L956] COND FALSE 2 !(get_top()==0) [L930] 2 top-- [L934] 2 return top; VAL [arr={5:0}, flag=1, m={9:0}, top=0] [L964] EXPR 2 stack[get_top()] [L964] 2 return stack[get_top()]; [L987] COND TRUE 2 i<(800) [L990] COND TRUE 2 \read(flag) [L934] 2 return top; [L956] COND TRUE 2 get_top()==0 [L959] 2 return (-2); [L992] COND TRUE 2 !(pop(arr)!=(-2)) [L922] 2 __VERIFIER_error() VAL [arr={5:0}, flag=1, m={9:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 134 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.3s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, HoareTripleCheckerStatistics: 416 SDtfs, 892 SDslu, 1496 SDs, 0 SdLazy, 1267 SolverSat, 121 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 332 GetRequests, 222 SyntacticMatches, 6 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1281 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=688occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 1191 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...