/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-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe036_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 20:05:43,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 20:05:43,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 20:05:43,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 20:05:43,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 20:05:43,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 20:05:43,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 20:05:43,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 20:05:43,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 20:05:43,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 20:05:43,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 20:05:43,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 20:05:43,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 20:05:43,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 20:05:43,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 20:05:43,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 20:05:43,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 20:05:43,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 20:05:43,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 20:05:43,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 20:05:43,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 20:05:43,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 20:05:43,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 20:05:43,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 20:05:43,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 20:05:43,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 20:05:43,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 20:05:43,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 20:05:43,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 20:05:43,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 20:05:43,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 20:05:43,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 20:05:43,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 20:05:43,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 20:05:43,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 20:05:43,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 20:05:43,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 20:05:43,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 20:05:43,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 20:05:43,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 20:05:43,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 20:05:43,999 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-McrStrategy.epf [2020-04-18 20:05:44,016 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 20:05:44,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 20:05:44,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 20:05:44,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 20:05:44,018 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 20:05:44,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 20:05:44,018 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 20:05:44,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 20:05:44,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 20:05:44,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 20:05:44,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 20:05:44,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 20:05:44,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 20:05:44,021 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 20:05:44,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 20:05:44,021 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 20:05:44,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 20:05:44,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 20:05:44,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 20:05:44,022 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 20:05:44,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 20:05:44,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 20:05:44,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 20:05:44,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 20:05:44,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 20:05:44,023 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 20:05:44,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 20:05:44,023 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 20:05:44,024 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 20:05:44,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 20:05:44,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 20:05:44,323 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 20:05:44,337 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 20:05:44,340 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 20:05:44,341 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 20:05:44,341 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 20:05:44,342 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_power.opt.i [2020-04-18 20:05:44,397 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7712b65a/cd2c23f0336c4e3db81f05c61b45b089/FLAGd860d03a2 [2020-04-18 20:05:44,930 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 20:05:44,931 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_power.opt.i [2020-04-18 20:05:44,943 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7712b65a/cd2c23f0336c4e3db81f05c61b45b089/FLAGd860d03a2 [2020-04-18 20:05:45,217 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7712b65a/cd2c23f0336c4e3db81f05c61b45b089 [2020-04-18 20:05:45,225 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 20:05:45,245 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 20:05:45,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 20:05:45,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 20:05:45,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 20:05:45,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:05:45" (1/1) ... [2020-04-18 20:05:45,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@165ac1d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:45, skipping insertion in model container [2020-04-18 20:05:45,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:05:45" (1/1) ... [2020-04-18 20:05:45,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 20:05:45,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 20:05:45,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:05:45,787 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 20:05:45,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:05:45,922 INFO L208 MainTranslator]: Completed translation [2020-04-18 20:05:45,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:45 WrapperNode [2020-04-18 20:05:45,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 20:05:45,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 20:05:45,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 20:05:45,923 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 20:05:45,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:45" (1/1) ... [2020-04-18 20:05:45,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:45" (1/1) ... [2020-04-18 20:05:45,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 20:05:45,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 20:05:45,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 20:05:45,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 20:05:45,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:45" (1/1) ... [2020-04-18 20:05:45,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:45" (1/1) ... [2020-04-18 20:05:45,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:45" (1/1) ... [2020-04-18 20:05:45,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:45" (1/1) ... [2020-04-18 20:05:45,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:45" (1/1) ... [2020-04-18 20:05:45,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:45" (1/1) ... [2020-04-18 20:05:45,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:45" (1/1) ... [2020-04-18 20:05:45,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 20:05:45,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 20:05:45,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 20:05:45,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 20:05:45,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 20:05:46,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 20:05:46,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 20:05:46,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 20:05:46,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 20:05:46,071 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 20:05:46,071 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 20:05:46,072 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 20:05:46,072 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 20:05:46,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 20:05:46,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 20:05:46,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 20:05:46,075 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 20:05:46,429 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 20:05:46,430 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 20:05:46,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:05:46 BoogieIcfgContainer [2020-04-18 20:05:46,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 20:05:46,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 20:05:46,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 20:05:46,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 20:05:46,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:05:45" (1/3) ... [2020-04-18 20:05:46,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f748c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:05:46, skipping insertion in model container [2020-04-18 20:05:46,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:45" (2/3) ... [2020-04-18 20:05:46,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f748c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:05:46, skipping insertion in model container [2020-04-18 20:05:46,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:05:46" (3/3) ... [2020-04-18 20:05:46,442 INFO L109 eAbstractionObserver]: Analyzing ICFG safe036_power.opt.i [2020-04-18 20:05:46,452 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 20:05:46,452 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 20:05:46,459 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 20:05:46,460 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 20:05:46,486 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,486 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,487 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,487 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,488 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,488 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,488 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,488 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,489 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,489 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,489 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,490 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,493 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,494 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,494 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,494 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,499 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,500 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,500 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,500 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:46,512 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 20:05:46,532 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:05:46,532 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:05:46,532 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:05:46,533 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:05:46,533 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:05:46,533 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:05:46,533 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:05:46,533 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:05:46,545 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 56 transitions, 122 flow [2020-04-18 20:05:46,612 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1121 states. [2020-04-18 20:05:46,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states. [2020-04-18 20:05:46,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 20:05:46,633 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:05:46,634 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:05:46,634 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:05:46,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:46,641 INFO L82 PathProgramCache]: Analyzing trace with hash -328445311, now seen corresponding path program 1 times [2020-04-18 20:05:46,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:05:46,648 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [561067215] [2020-04-18 20:05:46,664 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:46,676 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 31 transitions. [2020-04-18 20:05:46,678 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-04-18 20:05:46,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 20:05:46,679 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:05:46,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:46,679 INFO L82 PathProgramCache]: Analyzing trace with hash -328445311, now seen corresponding path program 2 times [2020-04-18 20:05:46,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:46,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233043923] [2020-04-18 20:05:46,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:47,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:05:47,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233043923] [2020-04-18 20:05:47,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:47,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 20:05:47,050 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:47,054 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:47,066 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 31 transitions. [2020-04-18 20:05:47,066 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:47,138 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:05:47,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:05:47,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 20:05:47,145 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 6 states. [2020-04-18 20:05:47,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:47,230 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2020-04-18 20:05:47,231 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2020-04-18 20:05:47,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:05:47,233 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [561067215] [2020-04-18 20:05:47,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:05:47,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 20:05:47,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [561067215] [2020-04-18 20:05:47,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 20:05:47,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:05:47,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:05:47,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 20:05:47,242 INFO L87 Difference]: Start difference. First operand 1121 states. Second operand 6 states. [2020-04-18 20:05:47,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:47,384 INFO L93 Difference]: Finished difference Result 1046 states and 2616 transitions. [2020-04-18 20:05:47,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 20:05:47,386 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-04-18 20:05:47,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:05:47,409 INFO L225 Difference]: With dead ends: 1046 [2020-04-18 20:05:47,409 INFO L226 Difference]: Without dead ends: 504 [2020-04-18 20:05:47,412 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 20:05:47,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-04-18 20:05:47,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-04-18 20:05:47,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-04-18 20:05:47,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 1219 transitions. [2020-04-18 20:05:47,507 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 1219 transitions. Word has length 31 [2020-04-18 20:05:47,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:05:47,507 INFO L479 AbstractCegarLoop]: Abstraction has 504 states and 1219 transitions. [2020-04-18 20:05:47,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 20:05:47,508 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 1219 transitions. [2020-04-18 20:05:47,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 20:05:47,510 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:05:47,510 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:05:47,510 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:05:47,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:47,511 INFO L82 PathProgramCache]: Analyzing trace with hash 2045091331, now seen corresponding path program 1 times [2020-04-18 20:05:47,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:05:47,512 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1439127423] [2020-04-18 20:05:47,513 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:47,514 INFO L259 McrAutomatonBuilder]: Finished intersection with 100 states and 163 transitions. [2020-04-18 20:05:47,515 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2020-04-18 20:05:47,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 20:05:47,517 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:05:47,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:47,517 INFO L82 PathProgramCache]: Analyzing trace with hash 2045091331, now seen corresponding path program 2 times [2020-04-18 20:05:47,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:47,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525510811] [2020-04-18 20:05:47,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:47,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:05:47,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525510811] [2020-04-18 20:05:47,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:47,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:05:47,707 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:47,710 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:47,716 INFO L259 McrAutomatonBuilder]: Finished intersection with 56 states and 75 transitions. [2020-04-18 20:05:47,716 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:47,755 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:05:47,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:47,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:05:47,756 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 7 states. [2020-04-18 20:05:47,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:47,886 INFO L93 Difference]: Finished difference Result 100 states and 163 transitions. [2020-04-18 20:05:47,886 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 163 transitions. [2020-04-18 20:05:47,887 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:05:47,887 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1439127423] [2020-04-18 20:05:47,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:05:47,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:05:47,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1439127423] [2020-04-18 20:05:47,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 20:05:47,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:05:47,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:47,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-04-18 20:05:47,890 INFO L87 Difference]: Start difference. First operand 504 states and 1219 transitions. Second operand 7 states. [2020-04-18 20:05:48,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:48,002 INFO L93 Difference]: Finished difference Result 372 states and 846 transitions. [2020-04-18 20:05:48,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 20:05:48,003 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-04-18 20:05:48,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:05:48,005 INFO L225 Difference]: With dead ends: 372 [2020-04-18 20:05:48,006 INFO L226 Difference]: Without dead ends: 240 [2020-04-18 20:05:48,009 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 20:05:48,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-04-18 20:05:48,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2020-04-18 20:05:48,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-04-18 20:05:48,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 515 transitions. [2020-04-18 20:05:48,029 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 515 transitions. Word has length 35 [2020-04-18 20:05:48,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:05:48,029 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 515 transitions. [2020-04-18 20:05:48,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 20:05:48,029 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 515 transitions. [2020-04-18 20:05:48,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:05:48,031 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:05:48,031 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:05:48,031 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:05:48,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:48,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1256214719, now seen corresponding path program 1 times [2020-04-18 20:05:48,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:05:48,032 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [847582741] [2020-04-18 20:05:48,034 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:48,042 INFO L259 McrAutomatonBuilder]: Finished intersection with 360 states and 871 transitions. [2020-04-18 20:05:48,048 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states. [2020-04-18 20:05:48,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:05:48,053 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:05:48,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:48,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1303635963, now seen corresponding path program 2 times [2020-04-18 20:05:48,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:48,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482336660] [2020-04-18 20:05:48,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:48,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:05:48,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482336660] [2020-04-18 20:05:48,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:48,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:05:48,283 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:48,289 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:48,342 INFO L259 McrAutomatonBuilder]: Finished intersection with 104 states and 172 transitions. [2020-04-18 20:05:48,342 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:48,383 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:05:48,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:48,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:05:48,386 INFO L87 Difference]: Start difference. First operand 360 states. Second operand 7 states. [2020-04-18 20:05:48,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:48,627 INFO L93 Difference]: Finished difference Result 370 states and 880 transitions. [2020-04-18 20:05:48,627 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 880 transitions. [2020-04-18 20:05:48,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:05:48,629 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 20:05:48,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:48,630 INFO L82 PathProgramCache]: Analyzing trace with hash -385252347, now seen corresponding path program 3 times [2020-04-18 20:05:48,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:48,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435198981] [2020-04-18 20:05:48,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:48,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:05:48,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435198981] [2020-04-18 20:05:48,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:48,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:05:48,796 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:48,800 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:48,809 INFO L259 McrAutomatonBuilder]: Finished intersection with 100 states and 165 transitions. [2020-04-18 20:05:48,809 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:48,901 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 7 times. [2020-04-18 20:05:48,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:48,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2020-04-18 20:05:48,902 INFO L87 Difference]: Start difference. First operand 370 states and 880 transitions. Second operand 7 states. [2020-04-18 20:05:49,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:49,019 INFO L93 Difference]: Finished difference Result 494 states and 1124 transitions. [2020-04-18 20:05:49,020 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 1124 transitions. [2020-04-18 20:05:49,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:05:49,022 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 20:05:49,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:49,022 INFO L82 PathProgramCache]: Analyzing trace with hash 341612163, now seen corresponding path program 4 times [2020-04-18 20:05:49,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:49,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890570996] [2020-04-18 20:05:49,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:49,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:49,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:05:49,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890570996] [2020-04-18 20:05:49,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:49,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:05:49,178 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:49,181 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:49,207 INFO L259 McrAutomatonBuilder]: Finished intersection with 136 states and 261 transitions. [2020-04-18 20:05:49,207 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:49,306 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 20:05:49,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:49,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=495, Unknown=0, NotChecked=0, Total=600 [2020-04-18 20:05:49,307 INFO L87 Difference]: Start difference. First operand 494 states and 1124 transitions. Second operand 7 states. [2020-04-18 20:05:49,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:49,429 INFO L93 Difference]: Finished difference Result 690 states and 1500 transitions. [2020-04-18 20:05:49,429 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1500 transitions. [2020-04-18 20:05:49,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:05:49,432 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [847582741] [2020-04-18 20:05:49,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:05:49,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:05:49,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [847582741] [2020-04-18 20:05:49,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-04-18 20:05:49,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:05:49,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-04-18 20:05:49,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=679, Unknown=0, NotChecked=0, Total=812 [2020-04-18 20:05:49,439 INFO L87 Difference]: Start difference. First operand 240 states and 515 transitions. Second operand 14 states. [2020-04-18 20:05:50,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:50,232 INFO L93 Difference]: Finished difference Result 464 states and 1015 transitions. [2020-04-18 20:05:50,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-04-18 20:05:50,233 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 39 [2020-04-18 20:05:50,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:05:50,233 INFO L225 Difference]: With dead ends: 464 [2020-04-18 20:05:50,233 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 20:05:50,235 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=456, Invalid=2300, Unknown=0, NotChecked=0, Total=2756 [2020-04-18 20:05:50,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 20:05:50,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 20:05:50,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 20:05:50,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 20:05:50,236 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-04-18 20:05:50,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:05:50,236 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 20:05:50,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-04-18 20:05:50,236 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 20:05:50,237 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:05:50,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:05:50 BasicIcfg [2020-04-18 20:05:50,242 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 20:05:50,244 INFO L168 Benchmark]: Toolchain (without parser) took 5016.89 ms. Allocated memory was 146.8 MB in the beginning and 288.4 MB in the end (delta: 141.6 MB). Free memory was 103.0 MB in the beginning and 227.2 MB in the end (delta: -124.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:50,245 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 20:05:50,246 INFO L168 Benchmark]: CACSL2BoogieTranslator took 676.26 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 100.9 MB in the beginning and 161.7 MB in the end (delta: -60.9 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:50,247 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.62 ms. Allocated memory is still 204.5 MB. Free memory was 161.7 MB in the beginning and 159.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:50,248 INFO L168 Benchmark]: Boogie Preprocessor took 22.52 ms. Allocated memory is still 204.5 MB. Free memory was 159.2 MB in the beginning and 157.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:50,249 INFO L168 Benchmark]: RCFGBuilder took 442.30 ms. Allocated memory is still 204.5 MB. Free memory was 157.9 MB in the beginning and 137.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:50,249 INFO L168 Benchmark]: TraceAbstraction took 3806.47 ms. Allocated memory was 204.5 MB in the beginning and 288.4 MB in the end (delta: 83.9 MB). Free memory was 137.9 MB in the beginning and 227.2 MB in the end (delta: -89.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 20:05:50,253 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 676.26 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 100.9 MB in the beginning and 161.7 MB in the end (delta: -60.9 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.62 ms. Allocated memory is still 204.5 MB. Free memory was 161.7 MB in the beginning and 159.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.52 ms. Allocated memory is still 204.5 MB. Free memory was 159.2 MB in the beginning and 157.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 442.30 ms. Allocated memory is still 204.5 MB. Free memory was 157.9 MB in the beginning and 137.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3806.47 ms. Allocated memory was 204.5 MB in the beginning and 288.4 MB in the end (delta: 83.9 MB). Free memory was 137.9 MB in the beginning and 227.2 MB in the end (delta: -89.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: 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 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 216 SDtfs, 385 SDslu, 1134 SDs, 0 SdLazy, 263 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 276 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1121occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...