/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/safe023_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 14:55:59,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 14:55:59,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 14:55:59,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 14:55:59,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 14:55:59,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 14:55:59,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 14:55:59,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 14:55:59,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 14:55:59,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 14:55:59,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 14:55:59,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 14:55:59,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 14:55:59,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 14:55:59,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 14:55:59,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 14:55:59,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 14:55:59,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 14:55:59,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 14:55:59,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 14:55:59,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 14:55:59,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 14:55:59,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 14:55:59,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 14:55:59,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 14:55:59,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 14:55:59,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 14:55:59,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 14:55:59,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 14:55:59,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 14:55:59,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 14:55:59,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 14:55:59,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 14:55:59,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 14:55:59,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 14:55:59,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 14:55:59,188 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 14:55:59,211 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 14:55:59,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 14:55:59,212 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 14:55:59,213 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 14:55:59,213 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 14:55:59,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 14:55:59,213 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 14:55:59,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 14:55:59,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 14:55:59,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 14:55:59,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 14:55:59,214 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 14:55:59,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 14:55:59,214 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 14:55:59,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 14:55:59,215 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 14:55:59,215 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 14:55:59,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 14:55:59,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 14:55:59,216 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 14:55:59,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 14:55:59,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 14:55:59,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 14:55:59,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 14:55:59,217 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 14:55:59,217 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 14:55:59,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 14:55:59,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 14:55:59,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 14:55:59,218 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 14:55:59,480 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 14:55:59,503 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 14:55:59,506 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 14:55:59,507 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 14:55:59,508 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 14:55:59,509 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i [2019-12-18 14:55:59,582 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32f0322da/10b515d6d1ff4cc88b3fd3c4356b7994/FLAGdcbef7ac4 [2019-12-18 14:56:00,167 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 14:56:00,168 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i [2019-12-18 14:56:00,181 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32f0322da/10b515d6d1ff4cc88b3fd3c4356b7994/FLAGdcbef7ac4 [2019-12-18 14:56:00,403 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32f0322da/10b515d6d1ff4cc88b3fd3c4356b7994 [2019-12-18 14:56:00,412 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 14:56:00,414 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 14:56:00,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 14:56:00,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 14:56:00,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 14:56:00,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:56:00" (1/1) ... [2019-12-18 14:56:00,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@695d6cc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:56:00, skipping insertion in model container [2019-12-18 14:56:00,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:56:00" (1/1) ... [2019-12-18 14:56:00,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 14:56:00,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 14:56:00,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:56:00,954 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 14:56:01,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:56:01,103 INFO L208 MainTranslator]: Completed translation [2019-12-18 14:56:01,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:56:01 WrapperNode [2019-12-18 14:56:01,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 14:56:01,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 14:56:01,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 14:56:01,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 14:56:01,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:56:01" (1/1) ... [2019-12-18 14:56:01,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:56:01" (1/1) ... [2019-12-18 14:56:01,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 14:56:01,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 14:56:01,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 14:56:01,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 14:56:01,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:56:01" (1/1) ... [2019-12-18 14:56:01,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:56:01" (1/1) ... [2019-12-18 14:56:01,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:56:01" (1/1) ... [2019-12-18 14:56:01,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:56:01" (1/1) ... [2019-12-18 14:56:01,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:56:01" (1/1) ... [2019-12-18 14:56:01,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:56:01" (1/1) ... [2019-12-18 14:56:01,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:56:01" (1/1) ... [2019-12-18 14:56:01,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 14:56:01,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 14:56:01,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 14:56:01,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 14:56:01,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:56:01" (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 14:56:01,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 14:56:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 14:56:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 14:56:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 14:56:01,249 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 14:56:01,250 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 14:56:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 14:56:01,252 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 14:56:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 14:56:01,253 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 14:56:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 14:56:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 14:56:01,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 14:56:01,256 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 14:56:01,666 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 14:56:01,666 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 14:56:01,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:56:01 BoogieIcfgContainer [2019-12-18 14:56:01,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 14:56:01,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 14:56:01,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 14:56:01,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 14:56:01,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:56:00" (1/3) ... [2019-12-18 14:56:01,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72835839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:56:01, skipping insertion in model container [2019-12-18 14:56:01,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:56:01" (2/3) ... [2019-12-18 14:56:01,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72835839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:56:01, skipping insertion in model container [2019-12-18 14:56:01,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:56:01" (3/3) ... [2019-12-18 14:56:01,676 INFO L109 eAbstractionObserver]: Analyzing ICFG safe023_tso.opt.i [2019-12-18 14:56:01,685 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 14:56:01,685 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 14:56:01,693 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 14:56:01,694 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 14:56:01,721 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,721 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,721 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,722 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,722 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,722 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,723 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,723 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,723 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,724 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,724 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,724 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,725 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,725 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,725 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,725 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,726 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,726 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,730 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,731 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,731 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,731 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,737 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,738 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,739 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,739 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,742 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,743 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,743 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,743 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:56:01,759 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 14:56:01,777 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 14:56:01,777 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 14:56:01,777 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 14:56:01,778 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 14:56:01,778 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 14:56:01,778 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 14:56:01,778 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 14:56:01,778 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 14:56:01,793 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 14:56:01,796 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 14:56:01,841 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 14:56:01,841 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:56:01,849 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 14:56:01,852 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 14:56:01,870 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 14:56:01,870 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:56:01,871 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 14:56:01,873 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 14:56:01,875 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 14:56:03,255 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-18 14:56:03,488 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-18 14:56:03,488 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-18 14:56:03,491 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 14:56:03,500 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 14:56:03,502 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 14:56:03,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 14:56:03,509 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:56:03,509 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:56:03,510 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:56:03,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:56:03,516 INFO L82 PathProgramCache]: Analyzing trace with hash -53140901, now seen corresponding path program 1 times [2019-12-18 14:56:03,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:56:03,526 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497969119] [2019-12-18 14:56:03,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:56:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:56:03,748 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 14:56:03,749 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497969119] [2019-12-18 14:56:03,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:56:03,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:56:03,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029419953] [2019-12-18 14:56:03,758 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:56:03,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:56:03,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:56:03,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:56:03,776 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 14:56:03,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:56:03,815 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-18 14:56:03,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:56:03,817 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 14:56:03,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:56:03,842 INFO L225 Difference]: With dead ends: 42 [2019-12-18 14:56:03,842 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 14:56:03,845 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 14:56:03,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 14:56:03,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 14:56:03,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 14:56:03,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 14:56:03,889 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 14:56:03,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:56:03,890 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 14:56:03,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:56:03,890 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 14:56:03,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 14:56:03,893 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:56:03,893 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:56:03,893 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:56:03,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:56:03,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1647367954, now seen corresponding path program 1 times [2019-12-18 14:56:03,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:56:03,894 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845184406] [2019-12-18 14:56:03,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:56:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:56:04,003 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 14:56:04,003 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845184406] [2019-12-18 14:56:04,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:56:04,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:56:04,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156131000] [2019-12-18 14:56:04,007 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:56:04,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:56:04,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:56:04,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:56:04,008 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 14:56:04,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:56:04,036 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 14:56:04,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:56:04,037 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 14:56:04,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:56:04,038 INFO L225 Difference]: With dead ends: 36 [2019-12-18 14:56:04,038 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 14:56:04,039 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 14:56:04,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 14:56:04,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 14:56:04,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 14:56:04,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-18 14:56:04,047 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-18 14:56:04,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:56:04,049 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-18 14:56:04,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:56:04,049 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-18 14:56:04,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 14:56:04,051 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:56:04,051 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:56:04,051 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:56:04,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:56:04,052 INFO L82 PathProgramCache]: Analyzing trace with hash 420225671, now seen corresponding path program 1 times [2019-12-18 14:56:04,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:56:04,053 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046636675] [2019-12-18 14:56:04,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:56:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:56:04,115 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 14:56:04,116 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046636675] [2019-12-18 14:56:04,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:56:04,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 14:56:04,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167923893] [2019-12-18 14:56:04,117 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:56:04,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:56:04,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:56:04,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:56:04,118 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 4 states. [2019-12-18 14:56:04,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:56:04,146 INFO L93 Difference]: Finished difference Result 35 states and 52 transitions. [2019-12-18 14:56:04,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 14:56:04,146 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 14:56:04,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:56:04,147 INFO L225 Difference]: With dead ends: 35 [2019-12-18 14:56:04,147 INFO L226 Difference]: Without dead ends: 19 [2019-12-18 14:56:04,148 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 14:56:04,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-18 14:56:04,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-18 14:56:04,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-18 14:56:04,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2019-12-18 14:56:04,151 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 10 [2019-12-18 14:56:04,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:56:04,151 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-12-18 14:56:04,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:56:04,152 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2019-12-18 14:56:04,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 14:56:04,152 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:56:04,152 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:56:04,153 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:56:04,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:56:04,153 INFO L82 PathProgramCache]: Analyzing trace with hash 119747757, now seen corresponding path program 1 times [2019-12-18 14:56:04,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:56:04,153 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332165195] [2019-12-18 14:56:04,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:56:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:56:04,206 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 14:56:04,206 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332165195] [2019-12-18 14:56:04,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:56:04,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 14:56:04,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44634337] [2019-12-18 14:56:04,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:56:04,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:56:04,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:56:04,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:56:04,212 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand 4 states. [2019-12-18 14:56:04,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:56:04,241 INFO L93 Difference]: Finished difference Result 18 states and 24 transitions. [2019-12-18 14:56:04,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:56:04,242 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 14:56:04,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:56:04,243 INFO L225 Difference]: With dead ends: 18 [2019-12-18 14:56:04,243 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 14:56:04,244 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 14:56:04,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 14:56:04,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 14:56:04,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 14:56:04,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 14:56:04,245 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 14:56:04,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:56:04,245 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 14:56:04,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:56:04,245 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 14:56:04,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 14:56:04,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 02:56:04 BasicIcfg [2019-12-18 14:56:04,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 14:56:04,251 INFO L168 Benchmark]: Toolchain (without parser) took 3837.61 ms. Allocated memory was 145.2 MB in the beginning and 247.5 MB in the end (delta: 102.2 MB). Free memory was 99.9 MB in the beginning and 155.1 MB in the end (delta: -55.2 MB). Peak memory consumption was 47.1 MB. Max. memory is 7.1 GB. [2019-12-18 14:56:04,252 INFO L168 Benchmark]: CDTParser took 1.74 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 14:56:04,253 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.15 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 99.7 MB in the beginning and 159.5 MB in the end (delta: -59.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-18 14:56:04,254 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.41 ms. Allocated memory is still 202.9 MB. Free memory was 159.5 MB in the beginning and 157.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 14:56:04,255 INFO L168 Benchmark]: Boogie Preprocessor took 25.69 ms. Allocated memory is still 202.9 MB. Free memory was 157.6 MB in the beginning and 156.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 14:56:04,256 INFO L168 Benchmark]: RCFGBuilder took 484.90 ms. Allocated memory is still 202.9 MB. Free memory was 156.2 MB in the beginning and 135.7 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-18 14:56:04,257 INFO L168 Benchmark]: TraceAbstraction took 2580.78 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 135.0 MB in the beginning and 155.1 MB in the end (delta: -20.1 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2019-12-18 14:56:04,261 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.74 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 689.15 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 99.7 MB in the beginning and 159.5 MB in the end (delta: -59.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.41 ms. Allocated memory is still 202.9 MB. Free memory was 159.5 MB in the beginning and 157.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.69 ms. Allocated memory is still 202.9 MB. Free memory was 157.6 MB in the beginning and 156.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 484.90 ms. Allocated memory is still 202.9 MB. Free memory was 156.2 MB in the beginning and 135.7 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2580.78 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 135.0 MB in the beginning and 155.1 MB in the end (delta: -20.1 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 230 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 12 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 467 CheckedPairsTotal, 44 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 50 SDtfs, 22 SDslu, 46 SDs, 0 SdLazy, 22 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 710 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...