/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:13:00,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:13:00,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:13:00,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:13:00,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:13:00,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:13:00,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:13:00,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:13:00,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:13:00,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:13:00,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:13:00,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:13:00,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:13:01,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:13:01,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:13:01,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:13:01,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:13:01,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:13:01,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:13:01,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:13:01,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:13:01,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:13:01,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:13:01,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:13:01,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:13:01,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:13:01,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:13:01,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:13:01,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:13:01,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:13:01,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:13:01,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:13:01,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:13:01,020 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:13:01,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:13:01,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:13:01,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:13:01,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:13:01,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:13:01,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:13:01,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:13:01,025 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 12:13:01,048 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:13:01,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:13:01,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:13:01,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:13:01,050 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:13:01,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:13:01,051 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:13:01,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:13:01,051 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:13:01,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:13:01,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:13:01,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:13:01,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:13:01,052 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:13:01,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:13:01,053 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:13:01,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:13:01,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:13:01,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:13:01,053 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:13:01,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:13:01,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:13:01,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:13:01,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:13:01,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:13:01,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:13:01,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:13:01,055 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:13:01,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:13:01,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:13:01,388 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:13:01,392 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:13:01,393 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:13:01,394 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:13:01,395 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2020-10-16 12:13:01,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/028bb0528/ad46924d49fd47abb5fe9dc7f1d0257b/FLAG136f0382e [2020-10-16 12:13:02,107 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:13:02,108 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2020-10-16 12:13:02,133 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/028bb0528/ad46924d49fd47abb5fe9dc7f1d0257b/FLAG136f0382e [2020-10-16 12:13:02,321 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/028bb0528/ad46924d49fd47abb5fe9dc7f1d0257b [2020-10-16 12:13:02,329 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:13:02,331 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:13:02,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:13:02,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:13:02,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:13:02,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:13:02" (1/1) ... [2020-10-16 12:13:02,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64877b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:02, skipping insertion in model container [2020-10-16 12:13:02,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:13:02" (1/1) ... [2020-10-16 12:13:02,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:13:02,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:13:03,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:13:03,266 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:13:03,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:13:03,784 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:13:03,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03 WrapperNode [2020-10-16 12:13:03,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:13:03,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:13:03,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:13:03,789 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:13:03,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... [2020-10-16 12:13:03,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... [2020-10-16 12:13:03,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:13:03,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:13:03,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:13:03,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:13:03,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... [2020-10-16 12:13:03,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... [2020-10-16 12:13:03,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... [2020-10-16 12:13:03,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... [2020-10-16 12:13:03,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... [2020-10-16 12:13:03,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... [2020-10-16 12:13:03,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... [2020-10-16 12:13:03,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:13:03,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:13:03,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:13:03,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:13:03,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 12:13:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:13:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 12:13:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-16 12:13:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:13:04,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:13:04,032 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2020-10-16 12:13:04,032 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2020-10-16 12:13:04,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:13:04,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:13:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 12:13:04,035 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:13:04,702 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:13:04,703 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-16 12:13:04,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:13:04 BoogieIcfgContainer [2020-10-16 12:13:04,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:13:04,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:13:04,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:13:04,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:13:04,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:13:02" (1/3) ... [2020-10-16 12:13:04,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce4baf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:13:04, skipping insertion in model container [2020-10-16 12:13:04,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:13:03" (2/3) ... [2020-10-16 12:13:04,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce4baf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:13:04, skipping insertion in model container [2020-10-16 12:13:04,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:13:04" (3/3) ... [2020-10-16 12:13:04,717 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2020-10-16 12:13:04,729 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:13:04,729 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:13:04,737 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-16 12:13:04,738 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:13:04,771 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,771 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,772 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,772 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,772 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,773 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,773 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,773 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,773 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,773 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,774 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,774 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,774 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,774 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,775 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,775 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,775 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,775 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,777 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,777 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,777 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,777 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,778 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,778 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,778 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,779 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,779 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,779 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,779 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,780 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,780 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,780 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,780 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,780 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,781 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,781 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,781 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,781 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,782 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,782 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,782 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,782 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,783 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,783 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,783 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,784 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,784 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,784 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,784 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,785 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,785 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,785 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,786 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,786 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,790 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,790 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,791 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,791 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,791 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,791 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,791 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,792 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,792 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,792 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,792 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,801 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,801 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,802 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,802 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,802 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,802 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,803 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,803 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,803 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,804 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,804 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:13:04,817 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-16 12:13:04,833 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 12:13:04,855 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:13:04,856 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:13:04,856 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:13:04,856 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:13:04,856 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:13:04,857 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:13:04,857 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:13:04,857 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:13:04,874 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:13:04,875 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 131 transitions, 284 flow [2020-10-16 12:13:04,878 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 131 transitions, 284 flow [2020-10-16 12:13:04,880 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 129 places, 131 transitions, 284 flow [2020-10-16 12:13:04,959 INFO L129 PetriNetUnfolder]: 9/169 cut-off events. [2020-10-16 12:13:04,960 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 12:13:04,966 INFO L80 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 169 events. 9/169 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 347 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 86. Up to 4 conditions per place. [2020-10-16 12:13:04,971 INFO L117 LiptonReduction]: Number of co-enabled transitions 2200 [2020-10-16 12:13:05,637 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:05,659 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:13:05,664 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:05,680 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:13:05,681 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:05,682 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:95, output treesize:67 [2020-10-16 12:13:07,069 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:07,094 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:13:07,098 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:07,117 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:13:07,118 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:07,118 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:102, output treesize:74 [2020-10-16 12:13:07,775 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-10-16 12:13:07,800 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:07,881 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:13:07,889 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:07,948 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:13:07,949 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-10-16 12:13:07,950 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:148, output treesize:160 [2020-10-16 12:13:08,511 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-10-16 12:13:09,150 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-16 12:13:09,531 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-16 12:13:09,752 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-16 12:13:09,965 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-16 12:13:10,154 INFO L132 LiptonReduction]: Checked pairs total: 4067 [2020-10-16 12:13:10,154 INFO L134 LiptonReduction]: Total number of compositions: 138 [2020-10-16 12:13:10,162 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 32 transitions, 86 flow [2020-10-16 12:13:10,198 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 190 states. [2020-10-16 12:13:10,202 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states. [2020-10-16 12:13:10,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-16 12:13:10,209 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:10,209 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-16 12:13:10,211 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:10,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:10,217 INFO L82 PathProgramCache]: Analyzing trace with hash 14364445, now seen corresponding path program 1 times [2020-10-16 12:13:10,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:10,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233295806] [2020-10-16 12:13:10,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:10,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233295806] [2020-10-16 12:13:10,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:10,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:13:10,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468316609] [2020-10-16 12:13:10,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:13:10,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:10,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:13:10,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:13:10,631 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 3 states. [2020-10-16 12:13:10,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:10,818 INFO L93 Difference]: Finished difference Result 248 states and 560 transitions. [2020-10-16 12:13:10,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:13:10,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-16 12:13:10,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:10,836 INFO L225 Difference]: With dead ends: 248 [2020-10-16 12:13:10,837 INFO L226 Difference]: Without dead ends: 230 [2020-10-16 12:13:10,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:13:10,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-16 12:13:10,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 200. [2020-10-16 12:13:10,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-10-16 12:13:10,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 444 transitions. [2020-10-16 12:13:10,902 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 444 transitions. Word has length 4 [2020-10-16 12:13:10,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:10,902 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 444 transitions. [2020-10-16 12:13:10,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:13:10,902 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 444 transitions. [2020-10-16 12:13:10,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 12:13:10,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:10,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 12:13:10,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:13:10,904 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:10,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:10,904 INFO L82 PathProgramCache]: Analyzing trace with hash 445298819, now seen corresponding path program 1 times [2020-10-16 12:13:10,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:10,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103998068] [2020-10-16 12:13:10,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:11,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:11,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103998068] [2020-10-16 12:13:11,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:11,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:13:11,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531026648] [2020-10-16 12:13:11,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:13:11,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:11,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:13:11,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:13:11,038 INFO L87 Difference]: Start difference. First operand 200 states and 444 transitions. Second operand 3 states. [2020-10-16 12:13:11,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:11,116 INFO L93 Difference]: Finished difference Result 243 states and 536 transitions. [2020-10-16 12:13:11,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:13:11,117 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-16 12:13:11,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:11,120 INFO L225 Difference]: With dead ends: 243 [2020-10-16 12:13:11,120 INFO L226 Difference]: Without dead ends: 236 [2020-10-16 12:13:11,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:13:11,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-10-16 12:13:11,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 221. [2020-10-16 12:13:11,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-10-16 12:13:11,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 505 transitions. [2020-10-16 12:13:11,142 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 505 transitions. Word has length 5 [2020-10-16 12:13:11,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:11,142 INFO L481 AbstractCegarLoop]: Abstraction has 221 states and 505 transitions. [2020-10-16 12:13:11,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:13:11,142 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 505 transitions. [2020-10-16 12:13:11,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:13:11,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:11,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:11,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:13:11,144 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:11,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:11,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1770707455, now seen corresponding path program 1 times [2020-10-16 12:13:11,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:11,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279288665] [2020-10-16 12:13:11,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:11,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:11,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279288665] [2020-10-16 12:13:11,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:11,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:13:11,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154783420] [2020-10-16 12:13:11,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:13:11,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:11,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:13:11,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:13:11,211 INFO L87 Difference]: Start difference. First operand 221 states and 505 transitions. Second operand 3 states. [2020-10-16 12:13:11,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:11,226 INFO L93 Difference]: Finished difference Result 86 states and 167 transitions. [2020-10-16 12:13:11,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:13:11,227 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 12:13:11,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:11,228 INFO L225 Difference]: With dead ends: 86 [2020-10-16 12:13:11,228 INFO L226 Difference]: Without dead ends: 86 [2020-10-16 12:13:11,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:13:11,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-16 12:13:11,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-10-16 12:13:11,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-16 12:13:11,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 167 transitions. [2020-10-16 12:13:11,235 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 167 transitions. Word has length 9 [2020-10-16 12:13:11,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:11,235 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 167 transitions. [2020-10-16 12:13:11,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:13:11,235 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 167 transitions. [2020-10-16 12:13:11,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:13:11,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:11,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:11,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:13:11,237 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:11,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:11,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1268591532, now seen corresponding path program 1 times [2020-10-16 12:13:11,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:11,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122593713] [2020-10-16 12:13:11,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:11,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:11,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122593713] [2020-10-16 12:13:11,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:11,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:11,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895042875] [2020-10-16 12:13:11,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-16 12:13:11,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:11,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-16 12:13:11,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-16 12:13:11,581 INFO L87 Difference]: Start difference. First operand 86 states and 167 transitions. Second operand 13 states. [2020-10-16 12:13:12,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:12,500 INFO L93 Difference]: Finished difference Result 86 states and 166 transitions. [2020-10-16 12:13:12,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-16 12:13:12,501 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 18 [2020-10-16 12:13:12,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:12,503 INFO L225 Difference]: With dead ends: 86 [2020-10-16 12:13:12,503 INFO L226 Difference]: Without dead ends: 74 [2020-10-16 12:13:12,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=237, Invalid=465, Unknown=0, NotChecked=0, Total=702 [2020-10-16 12:13:12,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-16 12:13:12,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-16 12:13:12,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-16 12:13:12,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 145 transitions. [2020-10-16 12:13:12,508 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 145 transitions. Word has length 18 [2020-10-16 12:13:12,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:12,509 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 145 transitions. [2020-10-16 12:13:12,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-16 12:13:12,509 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 145 transitions. [2020-10-16 12:13:12,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:13:12,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:12,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:12,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:13:12,511 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:12,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:12,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1297219722, now seen corresponding path program 1 times [2020-10-16 12:13:12,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:12,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699192947] [2020-10-16 12:13:12,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:12,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:12,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699192947] [2020-10-16 12:13:12,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:12,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:13:12,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563173915] [2020-10-16 12:13:12,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 12:13:12,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:12,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 12:13:12,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:13:12,831 INFO L87 Difference]: Start difference. First operand 74 states and 145 transitions. Second operand 8 states. [2020-10-16 12:13:13,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:13,162 INFO L93 Difference]: Finished difference Result 117 states and 209 transitions. [2020-10-16 12:13:13,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:13:13,162 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-10-16 12:13:13,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:13,163 INFO L225 Difference]: With dead ends: 117 [2020-10-16 12:13:13,164 INFO L226 Difference]: Without dead ends: 117 [2020-10-16 12:13:13,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-16 12:13:13,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-16 12:13:13,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 94. [2020-10-16 12:13:13,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-10-16 12:13:13,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 175 transitions. [2020-10-16 12:13:13,180 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 175 transitions. Word has length 18 [2020-10-16 12:13:13,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:13,180 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 175 transitions. [2020-10-16 12:13:13,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 12:13:13,181 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 175 transitions. [2020-10-16 12:13:13,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:13:13,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:13,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:13,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:13:13,185 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:13,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:13,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1297219740, now seen corresponding path program 1 times [2020-10-16 12:13:13,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:13,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383350595] [2020-10-16 12:13:13,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:13,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:13,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383350595] [2020-10-16 12:13:13,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:13,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:13,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983965169] [2020-10-16 12:13:13,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:13,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:13,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:13,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:13,910 INFO L87 Difference]: Start difference. First operand 94 states and 175 transitions. Second operand 14 states. [2020-10-16 12:13:14,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:14,815 INFO L93 Difference]: Finished difference Result 153 states and 271 transitions. [2020-10-16 12:13:14,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 12:13:14,816 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-10-16 12:13:14,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:14,817 INFO L225 Difference]: With dead ends: 153 [2020-10-16 12:13:14,817 INFO L226 Difference]: Without dead ends: 145 [2020-10-16 12:13:14,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2020-10-16 12:13:14,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-16 12:13:14,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 100. [2020-10-16 12:13:14,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-16 12:13:14,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 185 transitions. [2020-10-16 12:13:14,824 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 185 transitions. Word has length 18 [2020-10-16 12:13:14,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:14,824 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 185 transitions. [2020-10-16 12:13:14,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:14,825 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 185 transitions. [2020-10-16 12:13:14,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:13:14,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:14,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:14,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:13:14,827 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:14,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:14,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1046484834, now seen corresponding path program 2 times [2020-10-16 12:13:14,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:14,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463129909] [2020-10-16 12:13:14,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:15,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:15,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463129909] [2020-10-16 12:13:15,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:15,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:15,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430618569] [2020-10-16 12:13:15,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:15,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:15,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:15,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:15,615 INFO L87 Difference]: Start difference. First operand 100 states and 185 transitions. Second operand 14 states. [2020-10-16 12:13:16,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:16,692 INFO L93 Difference]: Finished difference Result 155 states and 274 transitions. [2020-10-16 12:13:16,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-16 12:13:16,693 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-10-16 12:13:16,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:16,695 INFO L225 Difference]: With dead ends: 155 [2020-10-16 12:13:16,695 INFO L226 Difference]: Without dead ends: 143 [2020-10-16 12:13:16,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-10-16 12:13:16,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-10-16 12:13:16,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 98. [2020-10-16 12:13:16,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-16 12:13:16,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 181 transitions. [2020-10-16 12:13:16,701 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 181 transitions. Word has length 18 [2020-10-16 12:13:16,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:16,701 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 181 transitions. [2020-10-16 12:13:16,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:16,701 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 181 transitions. [2020-10-16 12:13:16,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:13:16,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:16,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:16,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:13:16,703 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:16,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:16,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1347055900, now seen corresponding path program 3 times [2020-10-16 12:13:16,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:16,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007310770] [2020-10-16 12:13:16,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:17,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:17,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007310770] [2020-10-16 12:13:17,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:17,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:17,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567134295] [2020-10-16 12:13:17,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:17,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:17,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:17,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:17,449 INFO L87 Difference]: Start difference. First operand 98 states and 181 transitions. Second operand 14 states. [2020-10-16 12:13:18,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:18,428 INFO L93 Difference]: Finished difference Result 139 states and 253 transitions. [2020-10-16 12:13:18,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:13:18,428 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-10-16 12:13:18,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:18,430 INFO L225 Difference]: With dead ends: 139 [2020-10-16 12:13:18,430 INFO L226 Difference]: Without dead ends: 123 [2020-10-16 12:13:18,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-10-16 12:13:18,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-10-16 12:13:18,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 96. [2020-10-16 12:13:18,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-16 12:13:18,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 177 transitions. [2020-10-16 12:13:18,436 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 177 transitions. Word has length 18 [2020-10-16 12:13:18,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:18,436 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 177 transitions. [2020-10-16 12:13:18,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:18,437 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 177 transitions. [2020-10-16 12:13:18,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:13:18,437 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:18,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:18,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:13:18,438 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:18,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:18,438 INFO L82 PathProgramCache]: Analyzing trace with hash 646402192, now seen corresponding path program 2 times [2020-10-16 12:13:18,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:18,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598954036] [2020-10-16 12:13:18,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:18,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:18,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598954036] [2020-10-16 12:13:18,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:18,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:13:18,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570502333] [2020-10-16 12:13:18,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 12:13:18,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:18,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 12:13:18,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:13:18,672 INFO L87 Difference]: Start difference. First operand 96 states and 177 transitions. Second operand 8 states. [2020-10-16 12:13:19,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:19,006 INFO L93 Difference]: Finished difference Result 119 states and 212 transitions. [2020-10-16 12:13:19,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:13:19,006 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-10-16 12:13:19,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:19,008 INFO L225 Difference]: With dead ends: 119 [2020-10-16 12:13:19,008 INFO L226 Difference]: Without dead ends: 119 [2020-10-16 12:13:19,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-16 12:13:19,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-16 12:13:19,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2020-10-16 12:13:19,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-16 12:13:19,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 177 transitions. [2020-10-16 12:13:19,013 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 177 transitions. Word has length 18 [2020-10-16 12:13:19,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:19,013 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 177 transitions. [2020-10-16 12:13:19,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 12:13:19,014 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 177 transitions. [2020-10-16 12:13:19,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:13:19,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:19,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:19,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:13:19,015 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:19,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:19,015 INFO L82 PathProgramCache]: Analyzing trace with hash 646402210, now seen corresponding path program 4 times [2020-10-16 12:13:19,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:19,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915116334] [2020-10-16 12:13:19,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:19,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:19,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915116334] [2020-10-16 12:13:19,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:19,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:19,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831995680] [2020-10-16 12:13:19,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:19,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:19,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:19,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:19,787 INFO L87 Difference]: Start difference. First operand 96 states and 177 transitions. Second operand 14 states. [2020-10-16 12:13:20,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:20,778 INFO L93 Difference]: Finished difference Result 135 states and 244 transitions. [2020-10-16 12:13:20,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:13:20,779 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-10-16 12:13:20,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:20,781 INFO L225 Difference]: With dead ends: 135 [2020-10-16 12:13:20,781 INFO L226 Difference]: Without dead ends: 113 [2020-10-16 12:13:20,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2020-10-16 12:13:20,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-16 12:13:20,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 92. [2020-10-16 12:13:20,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-16 12:13:20,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 171 transitions. [2020-10-16 12:13:20,789 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 171 transitions. Word has length 18 [2020-10-16 12:13:20,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:20,789 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 171 transitions. [2020-10-16 12:13:20,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:20,789 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 171 transitions. [2020-10-16 12:13:20,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:13:20,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:20,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:20,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 12:13:20,791 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:20,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:20,791 INFO L82 PathProgramCache]: Analyzing trace with hash -318962108, now seen corresponding path program 5 times [2020-10-16 12:13:20,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:20,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349635625] [2020-10-16 12:13:20,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:21,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:21,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349635625] [2020-10-16 12:13:21,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:21,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:21,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921836180] [2020-10-16 12:13:21,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:21,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:21,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:21,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:21,456 INFO L87 Difference]: Start difference. First operand 92 states and 171 transitions. Second operand 14 states. [2020-10-16 12:13:22,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:22,406 INFO L93 Difference]: Finished difference Result 152 states and 280 transitions. [2020-10-16 12:13:22,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-16 12:13:22,406 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-10-16 12:13:22,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:22,407 INFO L225 Difference]: With dead ends: 152 [2020-10-16 12:13:22,407 INFO L226 Difference]: Without dead ends: 144 [2020-10-16 12:13:22,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:22,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-16 12:13:22,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 100. [2020-10-16 12:13:22,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-16 12:13:22,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 187 transitions. [2020-10-16 12:13:22,412 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 187 transitions. Word has length 18 [2020-10-16 12:13:22,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:22,415 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 187 transitions. [2020-10-16 12:13:22,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:22,415 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 187 transitions. [2020-10-16 12:13:22,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:13:22,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:22,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:22,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 12:13:22,416 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:22,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:22,416 INFO L82 PathProgramCache]: Analyzing trace with hash -569697014, now seen corresponding path program 6 times [2020-10-16 12:13:22,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:22,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813626210] [2020-10-16 12:13:22,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:23,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:23,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813626210] [2020-10-16 12:13:23,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:23,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:23,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960095547] [2020-10-16 12:13:23,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:23,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:23,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:23,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:23,147 INFO L87 Difference]: Start difference. First operand 100 states and 187 transitions. Second operand 14 states. [2020-10-16 12:13:24,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:24,043 INFO L93 Difference]: Finished difference Result 154 states and 283 transitions. [2020-10-16 12:13:24,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-16 12:13:24,044 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-10-16 12:13:24,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:24,045 INFO L225 Difference]: With dead ends: 154 [2020-10-16 12:13:24,045 INFO L226 Difference]: Without dead ends: 142 [2020-10-16 12:13:24,046 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:24,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-16 12:13:24,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 98. [2020-10-16 12:13:24,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-16 12:13:24,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 183 transitions. [2020-10-16 12:13:24,051 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 183 transitions. Word has length 18 [2020-10-16 12:13:24,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:24,051 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 183 transitions. [2020-10-16 12:13:24,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:24,052 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 183 transitions. [2020-10-16 12:13:24,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:13:24,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:24,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:24,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 12:13:24,053 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:24,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:24,053 INFO L82 PathProgramCache]: Analyzing trace with hash -269125948, now seen corresponding path program 7 times [2020-10-16 12:13:24,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:24,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533433959] [2020-10-16 12:13:24,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:24,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:24,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533433959] [2020-10-16 12:13:24,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:24,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:24,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588112008] [2020-10-16 12:13:24,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:24,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:24,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:24,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:24,793 INFO L87 Difference]: Start difference. First operand 98 states and 183 transitions. Second operand 14 states. [2020-10-16 12:13:25,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:25,653 INFO L93 Difference]: Finished difference Result 149 states and 278 transitions. [2020-10-16 12:13:25,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 12:13:25,654 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-10-16 12:13:25,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:25,655 INFO L225 Difference]: With dead ends: 149 [2020-10-16 12:13:25,656 INFO L226 Difference]: Without dead ends: 133 [2020-10-16 12:13:25,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:25,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-16 12:13:25,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 96. [2020-10-16 12:13:25,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-16 12:13:25,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 179 transitions. [2020-10-16 12:13:25,661 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 179 transitions. Word has length 18 [2020-10-16 12:13:25,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:25,661 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 179 transitions. [2020-10-16 12:13:25,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:25,662 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 179 transitions. [2020-10-16 12:13:25,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:13:25,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:25,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:25,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-16 12:13:25,663 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:25,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:25,663 INFO L82 PathProgramCache]: Analyzing trace with hash -969779638, now seen corresponding path program 8 times [2020-10-16 12:13:25,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:25,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999520253] [2020-10-16 12:13:25,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:26,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:26,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999520253] [2020-10-16 12:13:26,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:26,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 12:13:26,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749830730] [2020-10-16 12:13:26,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-16 12:13:26,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:26,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-16 12:13:26,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-16 12:13:26,385 INFO L87 Difference]: Start difference. First operand 96 states and 179 transitions. Second operand 14 states. [2020-10-16 12:13:27,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:27,297 INFO L93 Difference]: Finished difference Result 167 states and 302 transitions. [2020-10-16 12:13:27,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 12:13:27,298 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-10-16 12:13:27,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:27,300 INFO L225 Difference]: With dead ends: 167 [2020-10-16 12:13:27,300 INFO L226 Difference]: Without dead ends: 147 [2020-10-16 12:13:27,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-10-16 12:13:27,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-16 12:13:27,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 94. [2020-10-16 12:13:27,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-10-16 12:13:27,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 175 transitions. [2020-10-16 12:13:27,306 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 175 transitions. Word has length 18 [2020-10-16 12:13:27,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:27,306 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 175 transitions. [2020-10-16 12:13:27,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-16 12:13:27,306 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 175 transitions. [2020-10-16 12:13:27,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:13:27,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:27,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:27,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-16 12:13:27,307 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:27,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:27,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1049440908, now seen corresponding path program 3 times [2020-10-16 12:13:27,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:27,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680561397] [2020-10-16 12:13:27,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:13:27,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:13:27,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680561397] [2020-10-16 12:13:27,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:13:27,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 12:13:27,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336053345] [2020-10-16 12:13:27,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 12:13:27,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:13:27,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 12:13:27,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-16 12:13:27,719 INFO L87 Difference]: Start difference. First operand 94 states and 175 transitions. Second operand 11 states. [2020-10-16 12:13:28,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:13:28,223 INFO L93 Difference]: Finished difference Result 206 states and 364 transitions. [2020-10-16 12:13:28,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 12:13:28,223 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2020-10-16 12:13:28,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:13:28,225 INFO L225 Difference]: With dead ends: 206 [2020-10-16 12:13:28,225 INFO L226 Difference]: Without dead ends: 206 [2020-10-16 12:13:28,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2020-10-16 12:13:28,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-16 12:13:28,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 116. [2020-10-16 12:13:28,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-16 12:13:28,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 229 transitions. [2020-10-16 12:13:28,230 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 229 transitions. Word has length 18 [2020-10-16 12:13:28,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:13:28,231 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 229 transitions. [2020-10-16 12:13:28,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 12:13:28,231 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 229 transitions. [2020-10-16 12:13:28,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 12:13:28,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:13:28,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:13:28,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-16 12:13:28,232 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:13:28,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:13:28,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1049440926, now seen corresponding path program 9 times [2020-10-16 12:13:28,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:13:28,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846476986] [2020-10-16 12:13:28,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:13:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:13:28,268 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:13:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:13:28,296 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:13:28,332 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:13:28,332 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:13:28,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-16 12:13:28,334 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 12:13:28,346 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [392] [392] L1682-->L1739: Formula: (and (not (= ULTIMATE.start_ldv_assert_~expression_Out-599455107 0)) (= ULTIMATE.start_ldv_assert_~expression_Out-599455107 |ULTIMATE.start_ldv_assert_#in~expression_In-599455107|)) InVars {ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In-599455107|} OutVars{ULTIMATE.start_main_#t~mem40=|ULTIMATE.start_main_#t~mem40_Out-599455107|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In-599455107|, ULTIMATE.start_ldv_assert_~expression=ULTIMATE.start_ldv_assert_~expression_Out-599455107} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~mem40, ULTIMATE.start_ldv_assert_~expression] because there is no mapped edge [2020-10-16 12:13:28,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:13:28 BasicIcfg [2020-10-16 12:13:28,398 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:13:28,400 INFO L168 Benchmark]: Toolchain (without parser) took 26069.74 ms. Allocated memory was 138.9 MB in the beginning and 476.1 MB in the end (delta: 337.1 MB). Free memory was 98.5 MB in the beginning and 236.6 MB in the end (delta: -138.1 MB). Peak memory consumption was 199.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:13:28,401 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-16 12:13:28,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1455.54 ms. Allocated memory was 138.9 MB in the beginning and 234.4 MB in the end (delta: 95.4 MB). Free memory was 98.0 MB in the beginning and 169.8 MB in the end (delta: -71.7 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. [2020-10-16 12:13:28,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.48 ms. Allocated memory is still 234.4 MB. Free memory was 169.8 MB in the beginning and 166.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2020-10-16 12:13:28,403 INFO L168 Benchmark]: Boogie Preprocessor took 45.94 ms. Allocated memory is still 234.4 MB. Free memory was 166.3 MB in the beginning and 162.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2020-10-16 12:13:28,403 INFO L168 Benchmark]: RCFGBuilder took 749.25 ms. Allocated memory is still 234.4 MB. Free memory was 162.8 MB in the beginning and 118.8 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:13:28,404 INFO L168 Benchmark]: TraceAbstraction took 23689.92 ms. Allocated memory was 234.4 MB in the beginning and 476.1 MB in the end (delta: 241.7 MB). Free memory was 117.1 MB in the beginning and 236.6 MB in the end (delta: -119.5 MB). Peak memory consumption was 122.2 MB. Max. memory is 7.1 GB. [2020-10-16 12:13:28,408 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1455.54 ms. Allocated memory was 138.9 MB in the beginning and 234.4 MB in the end (delta: 95.4 MB). Free memory was 98.0 MB in the beginning and 169.8 MB in the end (delta: -71.7 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 122.48 ms. Allocated memory is still 234.4 MB. Free memory was 169.8 MB in the beginning and 166.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.94 ms. Allocated memory is still 234.4 MB. Free memory was 166.3 MB in the beginning and 162.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 749.25 ms. Allocated memory is still 234.4 MB. Free memory was 162.8 MB in the beginning and 118.8 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23689.92 ms. Allocated memory was 234.4 MB in the beginning and 476.1 MB in the end (delta: 241.7 MB). Free memory was 117.1 MB in the beginning and 236.6 MB in the end (delta: -119.5 MB). Peak memory consumption was 122.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1162 VarBasedMoverChecksPositive, 43 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 25 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.2s, 129 PlacesBefore, 34 PlacesAfterwards, 131 TransitionsBefore, 32 TransitionsAfterwards, 2200 CoEnabledTransitionPairs, 6 FixpointIterations, 63 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 16 ConcurrentYvCompositions, 4 ChoiceCompositions, 138 TotalNumberOfCompositions, 4067 MoverChecksTotal - CounterExampleResult [Line: 1682]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1683] 0 pthread_t t1,t2; [L1725] 0 return 0; [L1731] 0 int ret = my_drv_init(); [L1732] COND TRUE 0 ret==0 [L1733] 0 int probe_ret; [L1734] 0 struct my_data data; [L1704] 0 struct device *d = &data->dev; [L1706] 0 data->shared.a = 0 [L1707] 0 data->shared.b = 0 [L1708] 0 int res = __VERIFIER_nondet_int(); [L1709] COND FALSE 0 !(\read(res)) [L1711] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={6:24}, t1={5:0}, t2={7:0}] [L1696] 1 struct device *dev = (struct device*)arg; [L1697] 1 struct my_data *data; [L1698] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1698] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1699] 1 data->shared.a = 1 VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1700] 1 data->shared.b VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data->shared.b=0, dev={6:24}, t1={5:0}, t2={7:0}] [L1712] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data->shared.b=0, dev={6:24}, t1={5:0}, t2={7:0}] [L1696] 2 struct device *dev = (struct device*)arg; [L1697] 2 struct my_data *data; [L1698] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1698] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1699] 2 data->shared.a = 1 VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data->shared.b=0, dev={6:24}, t1={5:0}, t2={7:0}] [L1700] EXPR 2 data->shared.b VAL [__mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, data->shared.b=0, dev={6:24}, t1={5:0}, t2={7:0}] [L1700] 2 data->shared.b = data->shared.b + 1 [L1701] 2 return 0; [L1700] 1 data->shared.b = data->shared.b + 1 [L1701] 1 return 0; [L1713] 0 return 0; [L1735] 0 probe_ret = my_drv_probe(&data) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1736] COND TRUE 0 probe_ret==0 [L1719] 0 void *status; [L1720] 0 \read(t1) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1720] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1721] 0 \read(t2) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1721] FCALL, JOIN 2 pthread_join(t2, &status) VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] [L1738] 0 data.shared.a [L1739] 0 data.shared.b [L1682] COND TRUE 0 !expression [L1682] 0 __VERIFIER_error() VAL [\result={0:0}, __mptr={6:24}, arg={6:24}, arg={6:24}, data={6:0}, dev={6:24}, t1={5:0}, t2={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 111 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 23.4s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, HoareTripleCheckerStatistics: 269 SDtfs, 583 SDslu, 947 SDs, 0 SdLazy, 3861 SolverSat, 396 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 9.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 497 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 219 ConstructedInterpolants, 0 QuantifiedInterpolants, 79189 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...