/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 14:48:07,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 14:48:07,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 14:48:07,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 14:48:07,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 14:48:07,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 14:48:07,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 14:48:07,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 14:48:07,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 14:48:07,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 14:48:07,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 14:48:07,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 14:48:07,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 14:48:07,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 14:48:07,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 14:48:07,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 14:48:07,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 14:48:07,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 14:48:07,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 14:48:07,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 14:48:07,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 14:48:07,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 14:48:07,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 14:48:07,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 14:48:07,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 14:48:07,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 14:48:07,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 14:48:07,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 14:48:07,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 14:48:07,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 14:48:07,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 14:48:07,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 14:48:07,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 14:48:07,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 14:48:07,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 14:48:07,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 14:48:07,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 14:48:07,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 14:48:07,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 14:48:07,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 14:48:07,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 14:48:07,107 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-18 14:48:07,120 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 14:48:07,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 14:48:07,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 14:48:07,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 14:48:07,122 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 14:48:07,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 14:48:07,123 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 14:48:07,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 14:48:07,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 14:48:07,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 14:48:07,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 14:48:07,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 14:48:07,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 14:48:07,124 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 14:48:07,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 14:48:07,125 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 14:48:07,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 14:48:07,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 14:48:07,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 14:48:07,125 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 14:48:07,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 14:48:07,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 14:48:07,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 14:48:07,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 14:48:07,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 14:48:07,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 14:48:07,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 14:48:07,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 14:48:07,127 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 14:48:07,127 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 14:48:07,400 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 14:48:07,420 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 14:48:07,424 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 14:48:07,425 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 14:48:07,426 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 14:48:07,427 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.opt.i [2019-12-18 14:48:07,505 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e2b14e6/b3530da4424e4f59a20492b468d2b95d/FLAGdcf042a0c [2019-12-18 14:48:08,075 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 14:48:08,075 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_tso.opt.i [2019-12-18 14:48:08,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e2b14e6/b3530da4424e4f59a20492b468d2b95d/FLAGdcf042a0c [2019-12-18 14:48:08,411 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e2b14e6/b3530da4424e4f59a20492b468d2b95d [2019-12-18 14:48:08,419 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 14:48:08,421 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 14:48:08,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 14:48:08,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 14:48:08,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 14:48:08,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:48:08" (1/1) ... [2019-12-18 14:48:08,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d65c15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:48:08, skipping insertion in model container [2019-12-18 14:48:08,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:48:08" (1/1) ... [2019-12-18 14:48:08,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 14:48:08,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 14:48:08,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:48:08,995 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 14:48:09,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:48:09,122 INFO L208 MainTranslator]: Completed translation [2019-12-18 14:48:09,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:48:09 WrapperNode [2019-12-18 14:48:09,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 14:48:09,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 14:48:09,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 14:48:09,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 14:48:09,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:48:09" (1/1) ... [2019-12-18 14:48:09,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:48:09" (1/1) ... [2019-12-18 14:48:09,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 14:48:09,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 14:48:09,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 14:48:09,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 14:48:09,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:48:09" (1/1) ... [2019-12-18 14:48:09,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:48:09" (1/1) ... [2019-12-18 14:48:09,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:48:09" (1/1) ... [2019-12-18 14:48:09,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:48:09" (1/1) ... [2019-12-18 14:48:09,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:48:09" (1/1) ... [2019-12-18 14:48:09,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:48:09" (1/1) ... [2019-12-18 14:48:09,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:48:09" (1/1) ... [2019-12-18 14:48:09,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 14:48:09,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 14:48:09,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 14:48:09,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 14:48:09,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:48:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 14:48:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 14:48:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 14:48:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 14:48:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 14:48:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 14:48:09,260 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 14:48:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 14:48:09,260 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 14:48:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 14:48:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 14:48:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 14:48:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 14:48:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 14:48:09,262 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 14:48:09,669 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 14:48:09,669 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 14:48:09,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:48:09 BoogieIcfgContainer [2019-12-18 14:48:09,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 14:48:09,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 14:48:09,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 14:48:09,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 14:48:09,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:48:08" (1/3) ... [2019-12-18 14:48:09,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e687dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:48:09, skipping insertion in model container [2019-12-18 14:48:09,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:48:09" (2/3) ... [2019-12-18 14:48:09,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e687dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:48:09, skipping insertion in model container [2019-12-18 14:48:09,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:48:09" (3/3) ... [2019-12-18 14:48:09,680 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_tso.opt.i [2019-12-18 14:48:09,690 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 14:48:09,691 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 14:48:09,698 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 14:48:09,699 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 14:48:09,725 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,726 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,726 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,726 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,727 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,727 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,728 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,728 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,728 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,728 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,729 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,729 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,729 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,730 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,730 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,730 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,730 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,731 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,735 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,735 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,736 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,736 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,741 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,742 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,742 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,743 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,745 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,746 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,746 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,746 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:48:09,759 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 14:48:09,776 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 14:48:09,776 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 14:48:09,776 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 14:48:09,776 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 14:48:09,777 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 14:48:09,777 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 14:48:09,777 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 14:48:09,777 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 14:48:09,790 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 14:48:09,792 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 14:48:09,833 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 14:48:09,833 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:48:09,841 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:48:09,845 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 14:48:09,866 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 14:48:09,866 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:48:09,868 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:48:09,871 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 14:48:09,872 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 14:48:11,364 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-18 14:48:11,552 INFO L206 etLargeBlockEncoding]: Checked pairs total: 482 [2019-12-18 14:48:11,552 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-18 14:48:11,557 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 14:48:11,574 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 14:48:11,577 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 14:48:11,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 14:48:11,588 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:48:11,589 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:48:11,590 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:48:11,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:48:11,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1824698528, now seen corresponding path program 1 times [2019-12-18 14:48:11,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:48:11,607 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435358675] [2019-12-18 14:48:11,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:48:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:48:11,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:48:11,860 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435358675] [2019-12-18 14:48:11,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:48:11,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:48:11,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312036927] [2019-12-18 14:48:11,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:48:11,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:48:11,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:48:11,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:48:11,887 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 14:48:11,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:48:11,926 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-18 14:48:11,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:48:11,928 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 14:48:11,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:48:11,956 INFO L225 Difference]: With dead ends: 42 [2019-12-18 14:48:11,956 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 14:48:11,960 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:48:11,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 14:48:11,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 14:48:11,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 14:48:11,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 14:48:11,995 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 14:48:11,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:48:11,996 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 14:48:11,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:48:11,996 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 14:48:11,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 14:48:11,997 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:48:11,997 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:48:11,998 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:48:11,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:48:11,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1592223242, now seen corresponding path program 1 times [2019-12-18 14:48:11,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:48:11,999 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715522967] [2019-12-18 14:48:11,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:48:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:48:12,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:48:12,137 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715522967] [2019-12-18 14:48:12,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:48:12,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:48:12,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88619932] [2019-12-18 14:48:12,141 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:48:12,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:48:12,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:48:12,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:48:12,142 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 14:48:12,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:48:12,178 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 14:48:12,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:48:12,178 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 14:48:12,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:48:12,179 INFO L225 Difference]: With dead ends: 36 [2019-12-18 14:48:12,179 INFO L226 Difference]: Without dead ends: 22 [2019-12-18 14:48:12,180 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:48:12,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-18 14:48:12,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-18 14:48:12,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-18 14:48:12,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-18 14:48:12,186 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-18 14:48:12,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:48:12,187 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-18 14:48:12,187 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:48:12,187 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-18 14:48:12,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 14:48:12,188 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:48:12,188 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:48:12,188 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:48:12,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:48:12,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1186765067, now seen corresponding path program 1 times [2019-12-18 14:48:12,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:48:12,189 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736820925] [2019-12-18 14:48:12,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:48:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:48:12,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:48:12,286 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736820925] [2019-12-18 14:48:12,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:48:12,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:48:12,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861857881] [2019-12-18 14:48:12,287 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:48:12,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:48:12,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:48:12,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:48:12,288 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-18 14:48:12,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:48:12,325 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-18 14:48:12,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:48:12,325 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 14:48:12,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:48:12,326 INFO L225 Difference]: With dead ends: 25 [2019-12-18 14:48:12,326 INFO L226 Difference]: Without dead ends: 17 [2019-12-18 14:48:12,327 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:48:12,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-18 14:48:12,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-18 14:48:12,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-18 14:48:12,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-18 14:48:12,331 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-18 14:48:12,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:48:12,332 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-18 14:48:12,332 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:48:12,332 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-18 14:48:12,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 14:48:12,332 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:48:12,332 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:48:12,333 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:48:12,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:48:12,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1690191566, now seen corresponding path program 1 times [2019-12-18 14:48:12,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:48:12,333 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499962969] [2019-12-18 14:48:12,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:48:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:48:12,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:48:12,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499962969] [2019-12-18 14:48:12,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:48:12,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 14:48:12,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460720583] [2019-12-18 14:48:12,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:48:12,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:48:12,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:48:12,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:48:12,427 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-18 14:48:12,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:48:12,443 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-18 14:48:12,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:48:12,443 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 14:48:12,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:48:12,444 INFO L225 Difference]: With dead ends: 16 [2019-12-18 14:48:12,444 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 14:48:12,445 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:48:12,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 14:48:12,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 14:48:12,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 14:48:12,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 14:48:12,446 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 14:48:12,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:48:12,446 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 14:48:12,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:48:12,446 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 14:48:12,447 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 14:48:12,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 02:48:12 BasicIcfg [2019-12-18 14:48:12,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 14:48:12,453 INFO L168 Benchmark]: Toolchain (without parser) took 4031.76 ms. Allocated memory was 145.2 MB in the beginning and 245.9 MB in the end (delta: 100.7 MB). Free memory was 100.6 MB in the beginning and 144.0 MB in the end (delta: -43.4 MB). Peak memory consumption was 57.2 MB. Max. memory is 7.1 GB. [2019-12-18 14:48:12,454 INFO L168 Benchmark]: CDTParser took 1.50 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-18 14:48:12,455 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.31 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 100.4 MB in the beginning and 160.6 MB in the end (delta: -60.2 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2019-12-18 14:48:12,456 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.06 ms. Allocated memory is still 203.4 MB. Free memory was 160.6 MB in the beginning and 158.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 14:48:12,456 INFO L168 Benchmark]: Boogie Preprocessor took 25.71 ms. Allocated memory is still 203.4 MB. Free memory was 158.6 MB in the beginning and 157.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 14:48:12,457 INFO L168 Benchmark]: RCFGBuilder took 472.09 ms. Allocated memory is still 203.4 MB. Free memory was 156.6 MB in the beginning and 136.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-12-18 14:48:12,458 INFO L168 Benchmark]: TraceAbstraction took 2778.11 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 136.1 MB in the beginning and 144.0 MB in the end (delta: -8.0 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2019-12-18 14:48:12,463 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 701.31 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 100.4 MB in the beginning and 160.6 MB in the end (delta: -60.2 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.06 ms. Allocated memory is still 203.4 MB. Free memory was 160.6 MB in the beginning and 158.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.71 ms. Allocated memory is still 203.4 MB. Free memory was 158.6 MB in the beginning and 157.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 472.09 ms. Allocated memory is still 203.4 MB. Free memory was 156.6 MB in the beginning and 136.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2778.11 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 136.1 MB in the beginning and 144.0 MB in the end (delta: -8.0 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 243 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 17 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 482 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 25 SDslu, 34 SDs, 0 SdLazy, 22 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 802 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...