/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 14:25:00,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 14:25:00,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 14:25:00,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 14:25:00,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 14:25:00,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 14:25:00,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 14:25:00,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 14:25:00,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 14:25:00,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 14:25:00,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 14:25:00,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 14:25:00,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 14:25:00,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 14:25:00,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 14:25:00,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 14:25:00,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 14:25:00,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 14:25:00,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 14:25:00,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 14:25:00,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 14:25:00,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 14:25:00,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 14:25:00,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 14:25:00,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 14:25:00,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 14:25:00,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 14:25:00,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 14:25:00,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 14:25:00,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 14:25:00,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 14:25:00,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 14:25:00,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 14:25:00,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 14:25:00,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 14:25:00,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 14:25:00,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 14:25:00,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 14:25:00,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 14:25:00,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 14:25:00,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 14:25:01,000 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-18 14:25:01,014 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 14:25:01,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 14:25:01,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 14:25:01,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 14:25:01,016 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 14:25:01,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 14:25:01,016 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 14:25:01,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 14:25:01,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 14:25:01,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 14:25:01,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 14:25:01,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 14:25:01,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 14:25:01,017 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 14:25:01,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 14:25:01,018 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 14:25:01,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 14:25:01,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 14:25:01,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 14:25:01,018 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 14:25:01,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 14:25:01,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 14:25:01,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 14:25:01,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 14:25:01,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 14:25:01,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 14:25:01,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 14:25:01,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 14:25:01,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 14:25:01,020 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 14:25:01,290 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 14:25:01,303 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 14:25:01,306 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 14:25:01,308 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 14:25:01,308 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 14:25:01,309 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2019-12-18 14:25:01,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2add86764/239cc42a66ae43fb9a61a0510e79cf23/FLAG0a5e48ffc [2019-12-18 14:25:01,949 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 14:25:01,950 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2019-12-18 14:25:01,973 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2add86764/239cc42a66ae43fb9a61a0510e79cf23/FLAG0a5e48ffc [2019-12-18 14:25:02,240 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2add86764/239cc42a66ae43fb9a61a0510e79cf23 [2019-12-18 14:25:02,249 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 14:25:02,251 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 14:25:02,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 14:25:02,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 14:25:02,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 14:25:02,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:25:02" (1/1) ... [2019-12-18 14:25:02,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ac36716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:25:02, skipping insertion in model container [2019-12-18 14:25:02,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:25:02" (1/1) ... [2019-12-18 14:25:02,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 14:25:02,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 14:25:02,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:25:02,846 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 14:25:02,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:25:03,001 INFO L208 MainTranslator]: Completed translation [2019-12-18 14:25:03,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:25:03 WrapperNode [2019-12-18 14:25:03,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 14:25:03,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 14:25:03,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 14:25:03,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 14:25:03,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:25:03" (1/1) ... [2019-12-18 14:25:03,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:25:03" (1/1) ... [2019-12-18 14:25:03,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 14:25:03,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 14:25:03,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 14:25:03,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 14:25:03,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:25:03" (1/1) ... [2019-12-18 14:25:03,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:25:03" (1/1) ... [2019-12-18 14:25:03,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:25:03" (1/1) ... [2019-12-18 14:25:03,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:25:03" (1/1) ... [2019-12-18 14:25:03,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:25:03" (1/1) ... [2019-12-18 14:25:03,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:25:03" (1/1) ... [2019-12-18 14:25:03,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:25:03" (1/1) ... [2019-12-18 14:25:03,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 14:25:03,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 14:25:03,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 14:25:03,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 14:25:03,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:25:03" (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 [2019-12-18 14:25:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 14:25:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 14:25:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 14:25:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 14:25:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 14:25:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 14:25:03,161 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 14:25:03,161 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 14:25:03,161 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 14:25:03,161 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 14:25:03,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 14:25:03,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 14:25:03,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 14:25:03,163 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 14:25:03,557 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 14:25:03,558 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 14:25:03,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:25:03 BoogieIcfgContainer [2019-12-18 14:25:03,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 14:25:03,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 14:25:03,561 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 14:25:03,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 14:25:03,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:25:02" (1/3) ... [2019-12-18 14:25:03,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18502af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:25:03, skipping insertion in model container [2019-12-18 14:25:03,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:25:03" (2/3) ... [2019-12-18 14:25:03,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18502af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:25:03, skipping insertion in model container [2019-12-18 14:25:03,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:25:03" (3/3) ... [2019-12-18 14:25:03,567 INFO L109 eAbstractionObserver]: Analyzing ICFG safe002_tso.opt.i [2019-12-18 14:25:03,577 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 14:25:03,577 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 14:25:03,584 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 14:25:03,585 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 14:25:03,610 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,610 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,611 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,611 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,612 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,612 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,612 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,612 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,613 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,613 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,613 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,613 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,614 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,614 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,614 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,615 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,615 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,615 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,619 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,620 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,620 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,620 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,632 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,633 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,634 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,634 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,637 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,637 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,637 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,638 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:25:03,654 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 14:25:03,675 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 14:25:03,676 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 14:25:03,676 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 14:25:03,676 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 14:25:03,676 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 14:25:03,676 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 14:25:03,677 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 14:25:03,677 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 14:25:03,691 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 14:25:03,693 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 14:25:03,734 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 14:25:03,735 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:25:03,742 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:25:03,747 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 14:25:03,771 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 14:25:03,772 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:25:03,776 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:25:03,779 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 14:25:03,783 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 14:25:04,922 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2019-12-18 14:25:05,253 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-18 14:25:05,330 INFO L206 etLargeBlockEncoding]: Checked pairs total: 478 [2019-12-18 14:25:05,330 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-18 14:25:05,333 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-18 14:25:05,343 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-18 14:25:05,345 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-18 14:25:05,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 14:25:05,351 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:25:05,352 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:25:05,353 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:25:05,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:25:05,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1804038140, now seen corresponding path program 1 times [2019-12-18 14:25:05,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:25:05,365 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758280973] [2019-12-18 14:25:05,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:25:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:25:05,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:25:05,595 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758280973] [2019-12-18 14:25:05,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:25:05,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:25:05,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626938549] [2019-12-18 14:25:05,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:25:05,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:25:05,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:25:05,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:25:05,620 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-18 14:25:05,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:25:05,648 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-18 14:25:05,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:25:05,650 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 14:25:05,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:25:05,662 INFO L225 Difference]: With dead ends: 50 [2019-12-18 14:25:05,662 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 14:25:05,663 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:25:05,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 14:25:05,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 14:25:05,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 14:25:05,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 14:25:05,703 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 14:25:05,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:25:05,704 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 14:25:05,704 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:25:05,705 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 14:25:05,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 14:25:05,705 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:25:05,706 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:25:05,706 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:25:05,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:25:05,706 INFO L82 PathProgramCache]: Analyzing trace with hash 90665039, now seen corresponding path program 1 times [2019-12-18 14:25:05,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:25:05,707 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27032046] [2019-12-18 14:25:05,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:25:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:25:05,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:25:05,788 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27032046] [2019-12-18 14:25:05,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:25:05,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:25:05,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290769991] [2019-12-18 14:25:05,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:25:05,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:25:05,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:25:05,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:25:05,791 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 14:25:05,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:25:05,823 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 14:25:05,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:25:05,823 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 14:25:05,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:25:05,824 INFO L225 Difference]: With dead ends: 36 [2019-12-18 14:25:05,825 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 14:25:05,826 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:25:05,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 14:25:05,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 14:25:05,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 14:25:05,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-18 14:25:05,831 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-18 14:25:05,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:25:05,831 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-18 14:25:05,831 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:25:05,831 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-18 14:25:05,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 14:25:05,832 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:25:05,833 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:25:05,833 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:25:05,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:25:05,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1542654109, now seen corresponding path program 1 times [2019-12-18 14:25:05,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:25:05,834 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660347048] [2019-12-18 14:25:05,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:25:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:25:05,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:25:05,917 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660347048] [2019-12-18 14:25:05,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:25:05,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:25:05,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219173191] [2019-12-18 14:25:05,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:25:05,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:25:05,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:25:05,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:25:05,919 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-18 14:25:05,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:25:05,930 INFO L93 Difference]: Finished difference Result 27 states and 45 transitions. [2019-12-18 14:25:05,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:25:05,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 14:25:05,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:25:05,931 INFO L225 Difference]: With dead ends: 27 [2019-12-18 14:25:05,931 INFO L226 Difference]: Without dead ends: 27 [2019-12-18 14:25:05,932 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:25:05,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-18 14:25:05,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-18 14:25:05,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-18 14:25:05,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2019-12-18 14:25:05,938 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 10 [2019-12-18 14:25:05,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:25:05,938 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 45 transitions. [2019-12-18 14:25:05,939 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:25:05,939 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2019-12-18 14:25:05,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 14:25:05,939 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:25:05,940 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:25:05,942 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:25:05,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:25:05,942 INFO L82 PathProgramCache]: Analyzing trace with hash -525836137, now seen corresponding path program 1 times [2019-12-18 14:25:05,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:25:05,943 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81508020] [2019-12-18 14:25:05,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:25:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:25:06,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:25:06,051 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81508020] [2019-12-18 14:25:06,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:25:06,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:25:06,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134413557] [2019-12-18 14:25:06,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:25:06,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:25:06,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:25:06,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:25:06,054 INFO L87 Difference]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2019-12-18 14:25:06,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:25:06,077 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2019-12-18 14:25:06,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:25:06,078 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 14:25:06,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:25:06,078 INFO L225 Difference]: With dead ends: 33 [2019-12-18 14:25:06,078 INFO L226 Difference]: Without dead ends: 21 [2019-12-18 14:25:06,079 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:25:06,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-18 14:25:06,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-18 14:25:06,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-18 14:25:06,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2019-12-18 14:25:06,083 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 30 transitions. Word has length 11 [2019-12-18 14:25:06,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:25:06,083 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 30 transitions. [2019-12-18 14:25:06,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:25:06,085 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2019-12-18 14:25:06,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 14:25:06,086 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:25:06,086 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:25:06,086 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:25:06,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:25:06,086 INFO L82 PathProgramCache]: Analyzing trace with hash -577609367, now seen corresponding path program 2 times [2019-12-18 14:25:06,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:25:06,087 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304050564] [2019-12-18 14:25:06,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:25:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:25:06,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:25:06,171 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304050564] [2019-12-18 14:25:06,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:25:06,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 14:25:06,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205512690] [2019-12-18 14:25:06,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:25:06,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:25:06,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:25:06,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:25:06,173 INFO L87 Difference]: Start difference. First operand 21 states and 30 transitions. Second operand 4 states. [2019-12-18 14:25:06,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:25:06,207 INFO L93 Difference]: Finished difference Result 20 states and 29 transitions. [2019-12-18 14:25:06,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:25:06,207 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 14:25:06,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:25:06,208 INFO L225 Difference]: With dead ends: 20 [2019-12-18 14:25:06,208 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 14:25:06,209 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:25:06,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 14:25:06,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 14:25:06,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 14:25:06,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 14:25:06,210 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 14:25:06,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:25:06,210 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 14:25:06,210 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:25:06,210 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 14:25:06,210 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 14:25:06,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 02:25:06 BasicIcfg [2019-12-18 14:25:06,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 14:25:06,216 INFO L168 Benchmark]: Toolchain (without parser) took 3965.27 ms. Allocated memory was 144.7 MB in the beginning and 247.5 MB in the end (delta: 102.8 MB). Free memory was 99.4 MB in the beginning and 143.8 MB in the end (delta: -44.3 MB). Peak memory consumption was 58.4 MB. Max. memory is 7.1 GB. [2019-12-18 14:25:06,217 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-18 14:25:06,218 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.71 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 99.2 MB in the beginning and 159.0 MB in the end (delta: -59.8 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-18 14:25:06,219 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.04 ms. Allocated memory is still 202.9 MB. Free memory was 159.0 MB in the beginning and 156.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-12-18 14:25:06,220 INFO L168 Benchmark]: Boogie Preprocessor took 24.48 ms. Allocated memory is still 202.9 MB. Free memory was 156.8 MB in the beginning and 155.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 14:25:06,221 INFO L168 Benchmark]: RCFGBuilder took 458.06 ms. Allocated memory is still 202.9 MB. Free memory was 155.5 MB in the beginning and 134.8 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-18 14:25:06,222 INFO L168 Benchmark]: TraceAbstraction took 2653.86 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 134.8 MB in the beginning and 143.8 MB in the end (delta: -9.0 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2019-12-18 14:25:06,227 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 750.71 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 99.2 MB in the beginning and 159.0 MB in the end (delta: -59.8 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 73.04 ms. Allocated memory is still 202.9 MB. Free memory was 159.0 MB in the beginning and 156.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.48 ms. Allocated memory is still 202.9 MB. Free memory was 156.8 MB in the beginning and 155.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 458.06 ms. Allocated memory is still 202.9 MB. Free memory was 155.5 MB in the beginning and 134.8 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2653.86 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 134.8 MB in the beginning and 143.8 MB in the end (delta: -9.0 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 232 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 478 CheckedPairsTotal, 47 TotalNumberOfCompositions - 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 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 58 SDtfs, 28 SDslu, 40 SDs, 0 SdLazy, 24 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...