/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:36:45,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:36:45,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:36:45,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:36:45,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:36:45,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:36:45,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:36:45,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:36:45,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:36:45,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:36:45,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:36:45,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:36:45,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:36:45,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:36:45,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:36:45,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:36:45,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:36:45,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:36:45,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:36:45,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:36:45,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:36:45,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:36:45,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:36:45,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:36:45,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 05:36:45,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 05:36:45,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 05:36:45,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 05:36:45,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 05:36:45,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 05:36:45,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:36:45,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:36:45,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:36:45,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:36:45,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:36:45,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:36:45,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:36:45,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:36:45,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:36:45,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:36:45,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:36:45,928 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 05:36:45,941 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:36:45,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:36:45,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:36:45,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:36:45,943 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:36:45,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:36:45,944 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:36:45,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:36:45,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:36:45,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:36:45,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:36:45,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:36:45,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:36:45,945 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:36:45,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:36:45,945 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:36:45,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:36:45,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:36:45,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:36:45,947 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:36:45,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:36:45,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:36:45,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:36:45,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:36:45,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:36:45,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:36:45,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:36:45,949 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:36:45,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:36:45,949 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:36:46,277 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:36:46,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:36:46,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:36:46,295 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:36:46,295 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:36:46,296 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2019-12-19 05:36:46,351 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/460d451ea/a391608988f948e68e61d2a70105f9a6/FLAGe7b350ef5 [2019-12-19 05:36:46,873 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:36:46,874 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2019-12-19 05:36:46,889 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/460d451ea/a391608988f948e68e61d2a70105f9a6/FLAGe7b350ef5 [2019-12-19 05:36:47,180 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/460d451ea/a391608988f948e68e61d2a70105f9a6 [2019-12-19 05:36:47,192 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:36:47,193 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:36:47,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:36:47,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:36:47,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:36:47,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:36:47" (1/1) ... [2019-12-19 05:36:47,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32e114af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:36:47, skipping insertion in model container [2019-12-19 05:36:47,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:36:47" (1/1) ... [2019-12-19 05:36:47,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:36:47,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:36:47,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:36:47,829 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:36:47,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:36:47,983 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:36:47,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:36:47 WrapperNode [2019-12-19 05:36:47,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:36:47,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:36:47,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:36:47,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:36:47,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:36:47" (1/1) ... [2019-12-19 05:36:48,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:36:47" (1/1) ... [2019-12-19 05:36:48,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:36:48,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:36:48,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:36:48,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:36:48,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:36:47" (1/1) ... [2019-12-19 05:36:48,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:36:47" (1/1) ... [2019-12-19 05:36:48,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:36:47" (1/1) ... [2019-12-19 05:36:48,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:36:47" (1/1) ... [2019-12-19 05:36:48,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:36:47" (1/1) ... [2019-12-19 05:36:48,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:36:47" (1/1) ... [2019-12-19 05:36:48,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:36:47" (1/1) ... [2019-12-19 05:36:48,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:36:48,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:36:48,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:36:48,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:36:48,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:36:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:36:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:36:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:36:48,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:36:48,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:36:48,145 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:36:48,145 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:36:48,145 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:36:48,146 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:36:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:36:48,146 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:36:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-19 05:36:48,146 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-19 05:36:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:36:48,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:36:48,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:36:48,149 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:36:48,648 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:36:48,649 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:36:48,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:36:48 BoogieIcfgContainer [2019-12-19 05:36:48,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:36:48,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:36:48,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:36:48,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:36:48,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:36:47" (1/3) ... [2019-12-19 05:36:48,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5f114f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:36:48, skipping insertion in model container [2019-12-19 05:36:48,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:36:47" (2/3) ... [2019-12-19 05:36:48,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5f114f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:36:48, skipping insertion in model container [2019-12-19 05:36:48,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:36:48" (3/3) ... [2019-12-19 05:36:48,664 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2019-12-19 05:36:48,676 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:36:48,676 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:36:48,687 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:36:48,688 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:36:48,728 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,728 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,729 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,729 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,729 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,730 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,730 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,730 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,731 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,731 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,731 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,731 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,732 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,732 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,733 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,733 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,733 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,733 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,734 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,734 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,734 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,735 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,735 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,735 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,739 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,740 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,740 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,740 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,746 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,747 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,747 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,747 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,752 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,752 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,752 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,752 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,755 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,756 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,756 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,756 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:36:48,779 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-19 05:36:48,803 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:36:48,803 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:36:48,803 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:36:48,804 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:36:48,804 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:36:48,804 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:36:48,804 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:36:48,804 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:36:48,822 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 67 transitions [2019-12-19 05:36:49,166 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5475 states. [2019-12-19 05:36:49,169 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states. [2019-12-19 05:36:49,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-19 05:36:49,202 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:36:49,204 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:36:49,204 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:36:49,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:36:49,212 INFO L82 PathProgramCache]: Analyzing trace with hash 2004379789, now seen corresponding path program 1 times [2019-12-19 05:36:49,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:36:49,222 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699446750] [2019-12-19 05:36:49,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:36:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:36:49,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:36:49,708 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699446750] [2019-12-19 05:36:49,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:36:49,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:36:49,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656503461] [2019-12-19 05:36:49,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:36:49,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:36:49,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:36:49,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:36:49,734 INFO L87 Difference]: Start difference. First operand 5475 states. Second operand 4 states. [2019-12-19 05:36:49,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:36:49,909 INFO L93 Difference]: Finished difference Result 5712 states and 21937 transitions. [2019-12-19 05:36:49,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:36:49,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-12-19 05:36:49,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:36:49,956 INFO L225 Difference]: With dead ends: 5712 [2019-12-19 05:36:49,956 INFO L226 Difference]: Without dead ends: 2396 [2019-12-19 05:36:49,958 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:36:50,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2396 states. [2019-12-19 05:36:50,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2396 to 2396. [2019-12-19 05:36:50,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2396 states. [2019-12-19 05:36:50,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2396 states to 2396 states and 8940 transitions. [2019-12-19 05:36:50,175 INFO L78 Accepts]: Start accepts. Automaton has 2396 states and 8940 transitions. Word has length 38 [2019-12-19 05:36:50,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:36:50,177 INFO L462 AbstractCegarLoop]: Abstraction has 2396 states and 8940 transitions. [2019-12-19 05:36:50,177 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:36:50,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2396 states and 8940 transitions. [2019-12-19 05:36:50,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-19 05:36:50,184 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:36:50,184 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:36:50,185 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:36:50,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:36:50,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1300611009, now seen corresponding path program 1 times [2019-12-19 05:36:50,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:36:50,186 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509160293] [2019-12-19 05:36:50,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:36:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:36:50,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:36:50,390 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509160293] [2019-12-19 05:36:50,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:36:50,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:36:50,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971277990] [2019-12-19 05:36:50,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:36:50,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:36:50,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:36:50,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:36:50,395 INFO L87 Difference]: Start difference. First operand 2396 states and 8940 transitions. Second operand 5 states. [2019-12-19 05:36:50,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:36:50,514 INFO L93 Difference]: Finished difference Result 2567 states and 9324 transitions. [2019-12-19 05:36:50,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:36:50,515 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2019-12-19 05:36:50,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:36:50,538 INFO L225 Difference]: With dead ends: 2567 [2019-12-19 05:36:50,539 INFO L226 Difference]: Without dead ends: 2312 [2019-12-19 05:36:50,540 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:36:50,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2019-12-19 05:36:50,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2312. [2019-12-19 05:36:50,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2312 states. [2019-12-19 05:36:50,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 8548 transitions. [2019-12-19 05:36:50,681 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 8548 transitions. Word has length 39 [2019-12-19 05:36:50,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:36:50,682 INFO L462 AbstractCegarLoop]: Abstraction has 2312 states and 8548 transitions. [2019-12-19 05:36:50,683 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:36:50,683 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 8548 transitions. [2019-12-19 05:36:50,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-19 05:36:50,695 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:36:50,695 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:36:50,695 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:36:50,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:36:50,696 INFO L82 PathProgramCache]: Analyzing trace with hash -448422512, now seen corresponding path program 1 times [2019-12-19 05:36:50,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:36:50,697 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398688191] [2019-12-19 05:36:50,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:36:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:36:50,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:36:50,920 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398688191] [2019-12-19 05:36:50,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:36:50,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:36:50,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133361737] [2019-12-19 05:36:50,922 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:36:50,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:36:50,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:36:50,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:36:50,923 INFO L87 Difference]: Start difference. First operand 2312 states and 8548 transitions. Second operand 6 states. [2019-12-19 05:36:51,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:36:51,058 INFO L93 Difference]: Finished difference Result 2177 states and 7684 transitions. [2019-12-19 05:36:51,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:36:51,059 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2019-12-19 05:36:51,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:36:51,074 INFO L225 Difference]: With dead ends: 2177 [2019-12-19 05:36:51,074 INFO L226 Difference]: Without dead ends: 1934 [2019-12-19 05:36:51,075 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:36:51,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2019-12-19 05:36:51,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1934. [2019-12-19 05:36:51,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1934 states. [2019-12-19 05:36:51,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1934 states to 1934 states and 6910 transitions. [2019-12-19 05:36:51,151 INFO L78 Accepts]: Start accepts. Automaton has 1934 states and 6910 transitions. Word has length 40 [2019-12-19 05:36:51,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:36:51,152 INFO L462 AbstractCegarLoop]: Abstraction has 1934 states and 6910 transitions. [2019-12-19 05:36:51,152 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:36:51,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1934 states and 6910 transitions. [2019-12-19 05:36:51,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-19 05:36:51,158 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:36:51,159 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:36:51,159 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:36:51,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:36:51,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1962214962, now seen corresponding path program 1 times [2019-12-19 05:36:51,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:36:51,161 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691702947] [2019-12-19 05:36:51,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:36:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:36:51,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:36:51,392 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691702947] [2019-12-19 05:36:51,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:36:51,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:36:51,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535456563] [2019-12-19 05:36:51,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:36:51,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:36:51,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:36:51,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:36:51,394 INFO L87 Difference]: Start difference. First operand 1934 states and 6910 transitions. Second operand 7 states. [2019-12-19 05:36:51,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:36:51,527 INFO L93 Difference]: Finished difference Result 1367 states and 4534 transitions. [2019-12-19 05:36:51,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:36:51,527 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2019-12-19 05:36:51,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:36:51,536 INFO L225 Difference]: With dead ends: 1367 [2019-12-19 05:36:51,537 INFO L226 Difference]: Without dead ends: 1178 [2019-12-19 05:36:51,537 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:36:51,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2019-12-19 05:36:51,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1178. [2019-12-19 05:36:51,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1178 states. [2019-12-19 05:36:51,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 3886 transitions. [2019-12-19 05:36:51,577 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 3886 transitions. Word has length 41 [2019-12-19 05:36:51,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:36:51,577 INFO L462 AbstractCegarLoop]: Abstraction has 1178 states and 3886 transitions. [2019-12-19 05:36:51,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:36:51,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 3886 transitions. [2019-12-19 05:36:51,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-19 05:36:51,581 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:36:51,581 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:36:51,581 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:36:51,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:36:51,582 INFO L82 PathProgramCache]: Analyzing trace with hash 235705111, now seen corresponding path program 1 times [2019-12-19 05:36:51,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:36:51,582 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137985375] [2019-12-19 05:36:51,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:36:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:36:51,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:36:51,702 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137985375] [2019-12-19 05:36:51,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:36:51,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:36:51,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420808543] [2019-12-19 05:36:51,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:36:51,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:36:51,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:36:51,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:36:51,704 INFO L87 Difference]: Start difference. First operand 1178 states and 3886 transitions. Second operand 7 states. [2019-12-19 05:36:51,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:36:51,838 INFO L93 Difference]: Finished difference Result 1727 states and 5779 transitions. [2019-12-19 05:36:51,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:36:51,839 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2019-12-19 05:36:51,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:36:51,847 INFO L225 Difference]: With dead ends: 1727 [2019-12-19 05:36:51,847 INFO L226 Difference]: Without dead ends: 878 [2019-12-19 05:36:51,848 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:36:51,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2019-12-19 05:36:51,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2019-12-19 05:36:51,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2019-12-19 05:36:51,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 2890 transitions. [2019-12-19 05:36:51,878 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 2890 transitions. Word has length 42 [2019-12-19 05:36:51,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:36:51,879 INFO L462 AbstractCegarLoop]: Abstraction has 878 states and 2890 transitions. [2019-12-19 05:36:51,879 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:36:51,879 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 2890 transitions. [2019-12-19 05:36:51,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-19 05:36:51,881 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:36:51,881 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:36:51,882 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:36:51,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:36:51,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1056006217, now seen corresponding path program 2 times [2019-12-19 05:36:51,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:36:51,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129686077] [2019-12-19 05:36:51,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:36:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:36:52,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:36:52,052 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129686077] [2019-12-19 05:36:52,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:36:52,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:36:52,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745373001] [2019-12-19 05:36:52,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:36:52,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:36:52,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:36:52,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:36:52,054 INFO L87 Difference]: Start difference. First operand 878 states and 2890 transitions. Second operand 8 states. [2019-12-19 05:36:52,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:36:52,190 INFO L93 Difference]: Finished difference Result 1391 states and 4672 transitions. [2019-12-19 05:36:52,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:36:52,191 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-12-19 05:36:52,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:36:52,198 INFO L225 Difference]: With dead ends: 1391 [2019-12-19 05:36:52,198 INFO L226 Difference]: Without dead ends: 770 [2019-12-19 05:36:52,199 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:36:52,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2019-12-19 05:36:52,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2019-12-19 05:36:52,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 770 states. [2019-12-19 05:36:52,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 2578 transitions. [2019-12-19 05:36:52,281 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 2578 transitions. Word has length 42 [2019-12-19 05:36:52,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:36:52,282 INFO L462 AbstractCegarLoop]: Abstraction has 770 states and 2578 transitions. [2019-12-19 05:36:52,282 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:36:52,282 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 2578 transitions. [2019-12-19 05:36:52,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-19 05:36:52,286 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:36:52,287 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:36:52,287 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:36:52,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:36:52,289 INFO L82 PathProgramCache]: Analyzing trace with hash -112551247, now seen corresponding path program 3 times [2019-12-19 05:36:52,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:36:52,290 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922452050] [2019-12-19 05:36:52,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:36:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:36:52,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:36:52,460 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922452050] [2019-12-19 05:36:52,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:36:52,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:36:52,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590877305] [2019-12-19 05:36:52,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:36:52,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:36:52,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:36:52,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:36:52,462 INFO L87 Difference]: Start difference. First operand 770 states and 2578 transitions. Second operand 8 states. [2019-12-19 05:36:52,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:36:52,557 INFO L93 Difference]: Finished difference Result 1256 states and 4279 transitions. [2019-12-19 05:36:52,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:36:52,558 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-12-19 05:36:52,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:36:52,563 INFO L225 Difference]: With dead ends: 1256 [2019-12-19 05:36:52,564 INFO L226 Difference]: Without dead ends: 719 [2019-12-19 05:36:52,564 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:36:52,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2019-12-19 05:36:52,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2019-12-19 05:36:52,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2019-12-19 05:36:52,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 2434 transitions. [2019-12-19 05:36:52,587 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 2434 transitions. Word has length 42 [2019-12-19 05:36:52,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:36:52,587 INFO L462 AbstractCegarLoop]: Abstraction has 719 states and 2434 transitions. [2019-12-19 05:36:52,587 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:36:52,588 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 2434 transitions. [2019-12-19 05:36:52,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-19 05:36:52,589 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:36:52,589 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:36:52,590 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:36:52,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:36:52,590 INFO L82 PathProgramCache]: Analyzing trace with hash -267044461, now seen corresponding path program 4 times [2019-12-19 05:36:52,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:36:52,591 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879841714] [2019-12-19 05:36:52,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:36:52,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:36:52,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:36:52,703 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879841714] [2019-12-19 05:36:52,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:36:52,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:36:52,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783705001] [2019-12-19 05:36:52,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:36:52,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:36:52,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:36:52,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:36:52,706 INFO L87 Difference]: Start difference. First operand 719 states and 2434 transitions. Second operand 7 states. [2019-12-19 05:36:52,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:36:52,796 INFO L93 Difference]: Finished difference Result 557 states and 1840 transitions. [2019-12-19 05:36:52,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:36:52,796 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2019-12-19 05:36:52,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:36:52,797 INFO L225 Difference]: With dead ends: 557 [2019-12-19 05:36:52,797 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:36:52,797 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:36:52,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:36:52,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:36:52,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:36:52,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:36:52,798 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2019-12-19 05:36:52,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:36:52,798 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:36:52,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:36:52,799 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:36:52,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:36:52,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:36:52 BasicIcfg [2019-12-19 05:36:52,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:36:52,807 INFO L168 Benchmark]: Toolchain (without parser) took 5613.38 ms. Allocated memory was 144.2 MB in the beginning and 323.0 MB in the end (delta: 178.8 MB). Free memory was 100.7 MB in the beginning and 183.4 MB in the end (delta: -82.7 MB). Peak memory consumption was 96.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:36:52,812 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-19 05:36:52,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 789.73 ms. Allocated memory was 144.2 MB in the beginning and 199.2 MB in the end (delta: 55.1 MB). Free memory was 100.3 MB in the beginning and 155.4 MB in the end (delta: -55.1 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:36:52,814 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.59 ms. Allocated memory is still 199.2 MB. Free memory was 155.4 MB in the beginning and 153.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:36:52,816 INFO L168 Benchmark]: Boogie Preprocessor took 27.62 ms. Allocated memory is still 199.2 MB. Free memory was 153.3 MB in the beginning and 151.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:36:52,826 INFO L168 Benchmark]: RCFGBuilder took 580.09 ms. Allocated memory is still 199.2 MB. Free memory was 151.9 MB in the beginning and 128.7 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:36:52,827 INFO L168 Benchmark]: TraceAbstraction took 4152.72 ms. Allocated memory was 199.2 MB in the beginning and 323.0 MB in the end (delta: 123.7 MB). Free memory was 128.0 MB in the beginning and 183.4 MB in the end (delta: -55.4 MB). Peak memory consumption was 68.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:36:52,836 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 789.73 ms. Allocated memory was 144.2 MB in the beginning and 199.2 MB in the end (delta: 55.1 MB). Free memory was 100.3 MB in the beginning and 155.4 MB in the end (delta: -55.1 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.59 ms. Allocated memory is still 199.2 MB. Free memory was 155.4 MB in the beginning and 153.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.62 ms. Allocated memory is still 199.2 MB. Free memory was 153.3 MB in the beginning and 151.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 580.09 ms. Allocated memory is still 199.2 MB. Free memory was 151.9 MB in the beginning and 128.7 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4152.72 ms. Allocated memory was 199.2 MB in the beginning and 323.0 MB in the end (delta: 123.7 MB). Free memory was 128.0 MB in the beginning and 183.4 MB in the end (delta: -55.4 MB). Peak memory consumption was 68.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 67 locations, 1 error locations. Result: SAFE, OverallTime: 3.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 470 SDtfs, 757 SDslu, 1298 SDs, 0 SdLazy, 174 SolverSat, 85 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5475occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 326 NumberOfCodeBlocks, 326 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 39038 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...