/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 18:17:56,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 18:17:56,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 18:17:56,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 18:17:56,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 18:17:56,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 18:17:56,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 18:17:56,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 18:17:56,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 18:17:56,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 18:17:56,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 18:17:56,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 18:17:56,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 18:17:56,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 18:17:56,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 18:17:57,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 18:17:57,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 18:17:57,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 18:17:57,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 18:17:57,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 18:17:57,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 18:17:57,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 18:17:57,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 18:17:57,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 18:17:57,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 18:17:57,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 18:17:57,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 18:17:57,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 18:17:57,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 18:17:57,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 18:17:57,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 18:17:57,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 18:17:57,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 18:17:57,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 18:17:57,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 18:17:57,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 18:17:57,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 18:17:57,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 18:17:57,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 18:17:57,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 18:17:57,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 18:17:57,035 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2019-12-18 18:17:57,049 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 18:17:57,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 18:17:57,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 18:17:57,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 18:17:57,051 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 18:17:57,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 18:17:57,051 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 18:17:57,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 18:17:57,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 18:17:57,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 18:17:57,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 18:17:57,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 18:17:57,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 18:17:57,053 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 18:17:57,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 18:17:57,053 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 18:17:57,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 18:17:57,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 18:17:57,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 18:17:57,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 18:17:57,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 18:17:57,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 18:17:57,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 18:17:57,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 18:17:57,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 18:17:57,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 18:17:57,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 18:17:57,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 18:17:57,056 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 18:17:57,377 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 18:17:57,391 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 18:17:57,394 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 18:17:57,397 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 18:17:57,397 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 18:17:57,398 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2019-12-18 18:17:57,472 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/247a13bd7/80fe850937494d5f8470a0e0c3486f2a/FLAG8709931df [2019-12-18 18:17:58,002 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 18:17:58,004 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2019-12-18 18:17:58,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/247a13bd7/80fe850937494d5f8470a0e0c3486f2a/FLAG8709931df [2019-12-18 18:17:58,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/247a13bd7/80fe850937494d5f8470a0e0c3486f2a [2019-12-18 18:17:58,327 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 18:17:58,329 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 18:17:58,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 18:17:58,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 18:17:58,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 18:17:58,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:17:58" (1/1) ... [2019-12-18 18:17:58,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53f98591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:17:58, skipping insertion in model container [2019-12-18 18:17:58,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:17:58" (1/1) ... [2019-12-18 18:17:58,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 18:17:58,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 18:17:58,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:17:58,835 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 18:17:58,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:17:58,980 INFO L208 MainTranslator]: Completed translation [2019-12-18 18:17:58,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:17:58 WrapperNode [2019-12-18 18:17:58,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 18:17:58,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 18:17:58,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 18:17:58,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 18:17:58,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:17:58" (1/1) ... [2019-12-18 18:17:59,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:17:58" (1/1) ... [2019-12-18 18:17:59,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 18:17:59,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 18:17:59,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 18:17:59,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 18:17:59,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:17:58" (1/1) ... [2019-12-18 18:17:59,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:17:58" (1/1) ... [2019-12-18 18:17:59,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:17:58" (1/1) ... [2019-12-18 18:17:59,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:17:58" (1/1) ... [2019-12-18 18:17:59,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:17:58" (1/1) ... [2019-12-18 18:17:59,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:17:58" (1/1) ... [2019-12-18 18:17:59,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:17:58" (1/1) ... [2019-12-18 18:17:59,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 18:17:59,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 18:17:59,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 18:17:59,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 18:17:59,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:17:58" (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 18:17:59,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 18:17:59,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 18:17:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 18:17:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 18:17:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 18:17:59,139 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 18:17:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 18:17:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 18:17:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 18:17:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 18:17:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 18:17:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 18:17:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 18:17:59,142 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 18:17:59,515 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 18:17:59,516 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 18:17:59,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:17:59 BoogieIcfgContainer [2019-12-18 18:17:59,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 18:17:59,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 18:17:59,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 18:17:59,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 18:17:59,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 06:17:58" (1/3) ... [2019-12-18 18:17:59,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256c4303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:17:59, skipping insertion in model container [2019-12-18 18:17:59,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:17:58" (2/3) ... [2019-12-18 18:17:59,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256c4303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:17:59, skipping insertion in model container [2019-12-18 18:17:59,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:17:59" (3/3) ... [2019-12-18 18:17:59,525 INFO L109 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i [2019-12-18 18:17:59,534 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 18:17:59,535 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 18:17:59,542 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 18:17:59,543 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 18:17:59,571 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,571 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,571 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,572 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,572 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,573 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,573 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,573 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,574 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,574 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,574 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,574 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,575 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,575 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,575 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,576 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,576 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,576 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,580 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,581 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,581 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,581 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,587 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,588 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,588 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,588 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,591 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,592 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,592 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,592 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:17:59,606 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 18:17:59,622 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 18:17:59,623 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 18:17:59,623 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 18:17:59,623 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 18:17:59,623 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 18:17:59,623 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 18:17:59,623 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 18:17:59,624 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 18:17:59,636 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-18 18:17:59,638 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 18:17:59,680 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 18:17:59,681 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:17:59,689 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 18:17:59,694 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 18:17:59,713 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 18:17:59,713 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:17:59,715 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 18:17:59,717 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 18:17:59,718 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 18:18:01,302 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-18 18:18:01,366 INFO L206 etLargeBlockEncoding]: Checked pairs total: 501 [2019-12-18 18:18:01,366 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-18 18:18:01,370 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-18 18:18:01,383 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-18 18:18:01,386 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-18 18:18:01,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 18:18:01,393 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:18:01,394 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:18:01,394 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:18:01,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:18:01,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1273726136, now seen corresponding path program 1 times [2019-12-18 18:18:01,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:18:01,406 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085583943] [2019-12-18 18:18:01,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:18:01,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:18:01,631 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 18:18:01,632 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085583943] [2019-12-18 18:18:01,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:18:01,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 18:18:01,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681107706] [2019-12-18 18:18:01,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:18:01,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:18:01,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:18:01,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:18:01,657 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-18 18:18:01,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:18:01,702 INFO L93 Difference]: Finished difference Result 52 states and 109 transitions. [2019-12-18 18:18:01,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:18:01,704 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 18:18:01,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:18:01,716 INFO L225 Difference]: With dead ends: 52 [2019-12-18 18:18:01,716 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 18:18:01,718 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 18:18:01,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 18:18:01,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-18 18:18:01,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-18 18:18:01,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-18 18:18:01,759 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-18 18:18:01,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:18:01,761 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-18 18:18:01,761 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:18:01,761 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-18 18:18:01,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 18:18:01,762 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:18:01,762 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:18:01,763 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:18:01,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:18:01,763 INFO L82 PathProgramCache]: Analyzing trace with hash 724458, now seen corresponding path program 1 times [2019-12-18 18:18:01,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:18:01,764 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032584013] [2019-12-18 18:18:01,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:18:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:18:01,867 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 18:18:01,869 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032584013] [2019-12-18 18:18:01,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:18:01,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:18:01,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218422333] [2019-12-18 18:18:01,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:18:01,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:18:01,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:18:01,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:18:01,874 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-18 18:18:01,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:18:01,891 INFO L93 Difference]: Finished difference Result 42 states and 71 transitions. [2019-12-18 18:18:01,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:18:01,892 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 18:18:01,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:18:01,893 INFO L225 Difference]: With dead ends: 42 [2019-12-18 18:18:01,893 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 18:18:01,894 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:18:01,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 18:18:01,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2019-12-18 18:18:01,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 18:18:01,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 58 transitions. [2019-12-18 18:18:01,908 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 58 transitions. Word has length 9 [2019-12-18 18:18:01,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:18:01,908 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 58 transitions. [2019-12-18 18:18:01,909 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:18:01,910 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 58 transitions. [2019-12-18 18:18:01,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 18:18:01,911 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:18:01,911 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:18:01,911 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:18:01,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:18:01,912 INFO L82 PathProgramCache]: Analyzing trace with hash 825365607, now seen corresponding path program 1 times [2019-12-18 18:18:01,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:18:01,912 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848068354] [2019-12-18 18:18:01,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:18:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:18:01,982 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 18:18:01,983 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848068354] [2019-12-18 18:18:01,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:18:01,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:18:01,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101877877] [2019-12-18 18:18:01,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:18:01,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:18:01,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:18:01,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:18:01,985 INFO L87 Difference]: Start difference. First operand 34 states and 58 transitions. Second operand 3 states. [2019-12-18 18:18:01,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:18:01,996 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2019-12-18 18:18:01,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:18:01,996 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 18:18:01,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:18:01,997 INFO L225 Difference]: With dead ends: 36 [2019-12-18 18:18:01,997 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 18:18:01,998 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:18:01,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 18:18:02,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 18:18:02,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 18:18:02,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 41 transitions. [2019-12-18 18:18:02,002 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 41 transitions. Word has length 9 [2019-12-18 18:18:02,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:18:02,003 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 41 transitions. [2019-12-18 18:18:02,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:18:02,003 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2019-12-18 18:18:02,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 18:18:02,004 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:18:02,004 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:18:02,004 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:18:02,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:18:02,005 INFO L82 PathProgramCache]: Analyzing trace with hash -183428321, now seen corresponding path program 1 times [2019-12-18 18:18:02,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:18:02,005 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87049567] [2019-12-18 18:18:02,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:18:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:18:02,050 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 18:18:02,051 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87049567] [2019-12-18 18:18:02,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:18:02,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 18:18:02,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747453859] [2019-12-18 18:18:02,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:18:02,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:18:02,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:18:02,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:18:02,053 INFO L87 Difference]: Start difference. First operand 28 states and 41 transitions. Second operand 3 states. [2019-12-18 18:18:02,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:18:02,059 INFO L93 Difference]: Finished difference Result 27 states and 39 transitions. [2019-12-18 18:18:02,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:18:02,059 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 18:18:02,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:18:02,060 INFO L225 Difference]: With dead ends: 27 [2019-12-18 18:18:02,060 INFO L226 Difference]: Without dead ends: 21 [2019-12-18 18:18:02,061 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 18:18:02,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-18 18:18:02,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-18 18:18:02,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-18 18:18:02,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2019-12-18 18:18:02,064 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 10 [2019-12-18 18:18:02,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:18:02,064 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2019-12-18 18:18:02,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:18:02,065 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2019-12-18 18:18:02,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 18:18:02,065 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:18:02,066 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:18:02,066 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:18:02,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:18:02,066 INFO L82 PathProgramCache]: Analyzing trace with hash 527638481, now seen corresponding path program 1 times [2019-12-18 18:18:02,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:18:02,067 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439362585] [2019-12-18 18:18:02,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:18:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:18:02,129 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 18:18:02,130 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439362585] [2019-12-18 18:18:02,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:18:02,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:18:02,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618444184] [2019-12-18 18:18:02,131 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:18:02,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:18:02,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:18:02,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:18:02,132 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand 4 states. [2019-12-18 18:18:02,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:18:02,153 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2019-12-18 18:18:02,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:18:02,154 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 18:18:02,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:18:02,154 INFO L225 Difference]: With dead ends: 20 [2019-12-18 18:18:02,154 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 18:18:02,155 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 18:18:02,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 18:18:02,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 18:18:02,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 18:18:02,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 18:18:02,157 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 18:18:02,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:18:02,157 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 18:18:02,157 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:18:02,158 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 18:18:02,158 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 18:18:02,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 06:18:02 BasicIcfg [2019-12-18 18:18:02,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 18:18:02,164 INFO L168 Benchmark]: Toolchain (without parser) took 3835.11 ms. Allocated memory was 146.3 MB in the beginning and 244.3 MB in the end (delta: 98.0 MB). Free memory was 103.0 MB in the beginning and 135.6 MB in the end (delta: -32.6 MB). Peak memory consumption was 65.4 MB. Max. memory is 7.1 GB. [2019-12-18 18:18:02,165 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 146.3 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-18 18:18:02,166 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.65 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 102.8 MB in the beginning and 159.2 MB in the end (delta: -56.5 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-12-18 18:18:02,167 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.54 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-18 18:18:02,168 INFO L168 Benchmark]: Boogie Preprocessor took 28.03 ms. Allocated memory is still 202.4 MB. Free memory was 157.3 MB in the beginning and 156.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 18:18:02,169 INFO L168 Benchmark]: RCFGBuilder took 449.35 ms. Allocated memory is still 202.4 MB. Free memory was 156.1 MB in the beginning and 135.6 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-18 18:18:02,169 INFO L168 Benchmark]: TraceAbstraction took 2643.25 ms. Allocated memory was 202.4 MB in the beginning and 244.3 MB in the end (delta: 41.9 MB). Free memory was 134.9 MB in the beginning and 135.6 MB in the end (delta: -673.8 kB). Peak memory consumption was 41.3 MB. Max. memory is 7.1 GB. [2019-12-18 18:18:02,174 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 146.3 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 650.65 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 102.8 MB in the beginning and 159.2 MB in the end (delta: -56.5 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.54 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.03 ms. Allocated memory is still 202.4 MB. Free memory was 157.3 MB in the beginning and 156.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 449.35 ms. Allocated memory is still 202.4 MB. Free memory was 156.1 MB in the beginning and 135.6 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2643.25 ms. Allocated memory was 202.4 MB in the beginning and 244.3 MB in the end (delta: 41.9 MB). Free memory was 134.9 MB in the beginning and 135.6 MB in the end (delta: -673.8 kB). Peak memory consumption was 41.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 62 ProgramPointsBefore, 22 ProgramPointsAfterwards, 53 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 253 VarBasedMoverChecksPositive, 15 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 16 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 501 CheckedPairsTotal, 44 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 10 SDslu, 30 SDs, 0 SdLazy, 20 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 978 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...