/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/safe009_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 18:31:46,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 18:31:46,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 18:31:47,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 18:31:47,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 18:31:47,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 18:31:47,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 18:31:47,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 18:31:47,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 18:31:47,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 18:31:47,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 18:31:47,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 18:31:47,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 18:31:47,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 18:31:47,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 18:31:47,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 18:31:47,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 18:31:47,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 18:31:47,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 18:31:47,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 18:31:47,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 18:31:47,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 18:31:47,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 18:31:47,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 18:31:47,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 18:31:47,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 18:31:47,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 18:31:47,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 18:31:47,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 18:31:47,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 18:31:47,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 18:31:47,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 18:31:47,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 18:31:47,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 18:31:47,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 18:31:47,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 18:31:47,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 18:31:47,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 18:31:47,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 18:31:47,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 18:31:47,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 18:31:47,057 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 18:31:47,070 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 18:31:47,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 18:31:47,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 18:31:47,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 18:31:47,072 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 18:31:47,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 18:31:47,073 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 18:31:47,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 18:31:47,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 18:31:47,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 18:31:47,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 18:31:47,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 18:31:47,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 18:31:47,074 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 18:31:47,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 18:31:47,074 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 18:31:47,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 18:31:47,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 18:31:47,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 18:31:47,075 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 18:31:47,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 18:31:47,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 18:31:47,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 18:31:47,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 18:31:47,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 18:31:47,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 18:31:47,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 18:31:47,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 18:31:47,077 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 18:31:47,360 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 18:31:47,372 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 18:31:47,375 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 18:31:47,377 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 18:31:47,377 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 18:31:47,378 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i [2019-12-18 18:31:47,448 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c8b2037e/d27cc84615104087a2cc7fb1c3c9235b/FLAG0802c2dfa [2019-12-18 18:31:48,004 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 18:31:48,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i [2019-12-18 18:31:48,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c8b2037e/d27cc84615104087a2cc7fb1c3c9235b/FLAG0802c2dfa [2019-12-18 18:31:48,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c8b2037e/d27cc84615104087a2cc7fb1c3c9235b [2019-12-18 18:31:48,303 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 18:31:48,305 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 18:31:48,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 18:31:48,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 18:31:48,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 18:31:48,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:31:48" (1/1) ... [2019-12-18 18:31:48,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@237c4ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:31:48, skipping insertion in model container [2019-12-18 18:31:48,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:31:48" (1/1) ... [2019-12-18 18:31:48,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 18:31:48,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 18:31:48,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:31:48,892 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 18:31:48,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:31:49,020 INFO L208 MainTranslator]: Completed translation [2019-12-18 18:31:49,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:31:49 WrapperNode [2019-12-18 18:31:49,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 18:31:49,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 18:31:49,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 18:31:49,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 18:31:49,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:31:49" (1/1) ... [2019-12-18 18:31:49,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:31:49" (1/1) ... [2019-12-18 18:31:49,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 18:31:49,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 18:31:49,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 18:31:49,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 18:31:49,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:31:49" (1/1) ... [2019-12-18 18:31:49,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:31:49" (1/1) ... [2019-12-18 18:31:49,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:31:49" (1/1) ... [2019-12-18 18:31:49,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:31:49" (1/1) ... [2019-12-18 18:31:49,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:31:49" (1/1) ... [2019-12-18 18:31:49,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:31:49" (1/1) ... [2019-12-18 18:31:49,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:31:49" (1/1) ... [2019-12-18 18:31:49,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 18:31:49,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 18:31:49,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 18:31:49,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 18:31:49,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:31:49" (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 18:31:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 18:31:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 18:31:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 18:31:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 18:31:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 18:31:49,165 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 18:31:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 18:31:49,165 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 18:31:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 18:31:49,166 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 18:31:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 18:31:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 18:31:49,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 18:31:49,168 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 18:31:49,605 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 18:31:49,605 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 18:31:49,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:31:49 BoogieIcfgContainer [2019-12-18 18:31:49,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 18:31:49,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 18:31:49,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 18:31:49,613 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 18:31:49,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 06:31:48" (1/3) ... [2019-12-18 18:31:49,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c545d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:31:49, skipping insertion in model container [2019-12-18 18:31:49,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:31:49" (2/3) ... [2019-12-18 18:31:49,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c545d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:31:49, skipping insertion in model container [2019-12-18 18:31:49,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:31:49" (3/3) ... [2019-12-18 18:31:49,618 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc.i [2019-12-18 18:31:49,628 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 18:31:49,629 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 18:31:49,635 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 18:31:49,636 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 18:31:49,664 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,665 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,665 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,667 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,668 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,668 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,669 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,669 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,669 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,669 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,670 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,670 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,670 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,671 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,671 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,671 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,671 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,671 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,675 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,676 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,676 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,676 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,681 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,681 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,681 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,682 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,685 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,686 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,686 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,686 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:31:49,700 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 18:31:49,717 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 18:31:49,717 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 18:31:49,717 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 18:31:49,717 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 18:31:49,718 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 18:31:49,718 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 18:31:49,718 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 18:31:49,718 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 18:31:49,731 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-18 18:31:49,733 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 18:31:49,771 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 18:31:49,772 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:31:49,780 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 22 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 18:31:49,785 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 18:31:49,803 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 18:31:49,804 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:31:49,805 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 22 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 18:31:49,807 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 18:31:49,809 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 18:31:51,081 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-18 18:31:51,289 INFO L206 etLargeBlockEncoding]: Checked pairs total: 444 [2019-12-18 18:31:51,289 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-18 18:31:51,293 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 18:31:51,302 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 18:31:51,305 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 18:31:51,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 18:31:51,311 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:31:51,312 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:31:51,312 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:31:51,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:31:51,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1049428584, now seen corresponding path program 1 times [2019-12-18 18:31:51,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:31:51,328 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269884748] [2019-12-18 18:31:51,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:31:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:31:51,544 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 18:31:51,545 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269884748] [2019-12-18 18:31:51,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:31:51,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 18:31:51,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392869453] [2019-12-18 18:31:51,555 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:31:51,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:31:51,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:31:51,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:31:51,568 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 18:31:51,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:31:51,602 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-18 18:31:51,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:31:51,603 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 18:31:51,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:31:51,615 INFO L225 Difference]: With dead ends: 44 [2019-12-18 18:31:51,615 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 18:31:51,617 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 18:31:51,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 18:31:51,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-18 18:31:51,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-18 18:31:51,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-18 18:31:51,666 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-18 18:31:51,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:31:51,668 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-18 18:31:51,668 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:31:51,668 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-18 18:31:51,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 18:31:51,670 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:31:51,670 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:31:51,671 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:31:51,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:31:51,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1827452116, now seen corresponding path program 1 times [2019-12-18 18:31:51,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:31:51,672 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417230141] [2019-12-18 18:31:51,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:31:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:31:51,776 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 18:31:51,777 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417230141] [2019-12-18 18:31:51,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:31:51,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 18:31:51,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827331944] [2019-12-18 18:31:51,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:31:51,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:31:51,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:31:51,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:31:51,783 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-18 18:31:51,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:31:51,790 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-18 18:31:51,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:31:51,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 18:31:51,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:31:51,791 INFO L225 Difference]: With dead ends: 34 [2019-12-18 18:31:51,792 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 18:31:51,792 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 18:31:51,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 18:31:51,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 18:31:51,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 18:31:51,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 18:31:51,800 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-18 18:31:51,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:31:51,800 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 18:31:51,800 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:31:51,801 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 18:31:51,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 18:31:51,801 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:31:51,802 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:31:51,802 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:31:51,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:31:51,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1827452178, now seen corresponding path program 1 times [2019-12-18 18:31:51,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:31:51,803 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610740515] [2019-12-18 18:31:51,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:31:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:31:51,880 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 18:31:51,881 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610740515] [2019-12-18 18:31:51,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:31:51,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:31:51,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487364098] [2019-12-18 18:31:51,881 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:31:51,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:31:51,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:31:51,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:31:51,882 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-18 18:31:51,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:31:51,908 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 18:31:51,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:31:51,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 18:31:51,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:31:51,910 INFO L225 Difference]: With dead ends: 36 [2019-12-18 18:31:51,910 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 18:31:51,911 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 18:31:51,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 18:31:51,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 18:31:51,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 18:31:51,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-18 18:31:51,917 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-18 18:31:51,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:31:51,918 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-18 18:31:51,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:31:51,919 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-18 18:31:51,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 18:31:51,919 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:31:51,920 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:31:51,920 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:31:51,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:31:51,920 INFO L82 PathProgramCache]: Analyzing trace with hash 816442522, now seen corresponding path program 1 times [2019-12-18 18:31:51,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:31:51,921 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682475067] [2019-12-18 18:31:51,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:31:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:31:52,024 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 18:31:52,026 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682475067] [2019-12-18 18:31:52,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:31:52,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:31:52,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759834902] [2019-12-18 18:31:52,027 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:31:52,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:31:52,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:31:52,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:31:52,028 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 4 states. [2019-12-18 18:31:52,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:31:52,048 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2019-12-18 18:31:52,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:31:52,048 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 18:31:52,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:31:52,049 INFO L225 Difference]: With dead ends: 33 [2019-12-18 18:31:52,049 INFO L226 Difference]: Without dead ends: 21 [2019-12-18 18:31:52,050 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 18:31:52,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-18 18:31:52,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-18 18:31:52,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-18 18:31:52,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2019-12-18 18:31:52,053 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 10 [2019-12-18 18:31:52,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:31:52,053 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2019-12-18 18:31:52,053 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:31:52,054 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2019-12-18 18:31:52,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 18:31:52,054 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:31:52,054 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:31:52,055 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:31:52,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:31:52,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1244284059, now seen corresponding path program 1 times [2019-12-18 18:31:52,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:31:52,055 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465115618] [2019-12-18 18:31:52,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:31:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:31:52,093 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 18:31:52,093 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465115618] [2019-12-18 18:31:52,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:31:52,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:31:52,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203248868] [2019-12-18 18:31:52,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:31:52,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:31:52,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:31:52,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:31:52,095 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand 4 states. [2019-12-18 18:31:52,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:31:52,109 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2019-12-18 18:31:52,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:31:52,109 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 18:31:52,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:31:52,109 INFO L225 Difference]: With dead ends: 20 [2019-12-18 18:31:52,109 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 18:31:52,110 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 18:31:52,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 18:31:52,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 18:31:52,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 18:31:52,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 18:31:52,111 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 18:31:52,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:31:52,111 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 18:31:52,111 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:31:52,112 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 18:31:52,112 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 18:31:52,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 06:31:52 BasicIcfg [2019-12-18 18:31:52,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 18:31:52,118 INFO L168 Benchmark]: Toolchain (without parser) took 3812.41 ms. Allocated memory was 145.2 MB in the beginning and 246.4 MB in the end (delta: 101.2 MB). Free memory was 100.5 MB in the beginning and 158.3 MB in the end (delta: -57.7 MB). Peak memory consumption was 43.5 MB. Max. memory is 7.1 GB. [2019-12-18 18:31:52,119 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-18 18:31:52,120 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.34 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 100.3 MB in the beginning and 159.6 MB in the end (delta: -59.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-18 18:31:52,120 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.11 ms. Allocated memory is still 202.4 MB. Free memory was 159.6 MB in the beginning and 156.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-18 18:31:52,121 INFO L168 Benchmark]: Boogie Preprocessor took 26.70 ms. Allocated memory is still 202.4 MB. Free memory was 156.9 MB in the beginning and 155.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 18:31:52,122 INFO L168 Benchmark]: RCFGBuilder took 512.55 ms. Allocated memory is still 202.4 MB. Free memory was 155.6 MB in the beginning and 135.1 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-18 18:31:52,123 INFO L168 Benchmark]: TraceAbstraction took 2505.89 ms. Allocated memory was 202.4 MB in the beginning and 246.4 MB in the end (delta: 44.0 MB). Free memory was 135.1 MB in the beginning and 158.3 MB in the end (delta: -23.2 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2019-12-18 18:31:52,127 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 714.34 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 100.3 MB in the beginning and 159.6 MB in the end (delta: -59.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.11 ms. Allocated memory is still 202.4 MB. Free memory was 159.6 MB in the beginning and 156.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.70 ms. Allocated memory is still 202.4 MB. Free memory was 156.9 MB in the beginning and 155.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 512.55 ms. Allocated memory is still 202.4 MB. Free memory was 155.6 MB in the beginning and 135.1 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2505.89 ms. Allocated memory was 202.4 MB in the beginning and 246.4 MB in the end (delta: 44.0 MB). Free memory was 135.1 MB in the beginning and 158.3 MB in the end (delta: -23.2 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 219 VarBasedMoverChecksPositive, 16 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 444 CheckedPairsTotal, 45 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: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 26 SDslu, 29 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 962 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...