/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/safe035_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 00:18:57,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 00:18:57,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 00:18:57,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 00:18:57,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 00:18:57,610 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 00:18:57,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 00:18:57,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 00:18:57,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 00:18:57,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 00:18:57,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 00:18:57,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 00:18:57,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 00:18:57,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 00:18:57,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 00:18:57,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 00:18:57,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 00:18:57,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 00:18:57,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 00:18:57,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 00:18:57,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 00:18:57,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 00:18:57,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 00:18:57,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 00:18:57,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 00:18:57,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 00:18:57,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 00:18:57,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 00:18:57,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 00:18:57,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 00:18:57,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 00:18:57,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 00:18:57,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 00:18:57,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 00:18:57,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 00:18:57,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 00:18:57,680 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 [2019-12-27 00:18:57,694 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 00:18:57,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 00:18:57,696 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 00:18:57,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 00:18:57,697 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 00:18:57,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 00:18:57,697 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 00:18:57,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 00:18:57,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 00:18:57,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 00:18:57,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 00:18:57,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 00:18:57,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 00:18:57,699 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 00:18:57,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 00:18:57,700 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 00:18:57,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 00:18:57,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 00:18:57,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 00:18:57,701 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 00:18:57,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 00:18:57,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:18:57,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 00:18:57,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 00:18:57,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 00:18:57,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 00:18:57,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 00:18:57,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 00:18:57,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-27 00:18:57,702 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 00:18:57,994 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 00:18:58,012 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 00:18:58,016 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 00:18:58,017 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 00:18:58,017 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 00:18:58,018 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.opt.i [2019-12-27 00:18:58,085 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3262a0051/3f9db34dc7b14993964ae3efc7ea6ee1/FLAG1e3cd357d [2019-12-27 00:18:58,654 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 00:18:58,655 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_tso.opt.i [2019-12-27 00:18:58,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3262a0051/3f9db34dc7b14993964ae3efc7ea6ee1/FLAG1e3cd357d [2019-12-27 00:18:58,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3262a0051/3f9db34dc7b14993964ae3efc7ea6ee1 [2019-12-27 00:18:58,952 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 00:18:58,953 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 00:18:58,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 00:18:58,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 00:18:58,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 00:18:58,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:18:58" (1/1) ... [2019-12-27 00:18:58,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c48b603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:58, skipping insertion in model container [2019-12-27 00:18:58,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:18:58" (1/1) ... [2019-12-27 00:18:58,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 00:18:59,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 00:18:59,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:18:59,480 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 00:18:59,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:18:59,626 INFO L208 MainTranslator]: Completed translation [2019-12-27 00:18:59,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:59 WrapperNode [2019-12-27 00:18:59,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 00:18:59,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 00:18:59,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 00:18:59,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 00:18:59,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:59" (1/1) ... [2019-12-27 00:18:59,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:59" (1/1) ... [2019-12-27 00:18:59,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 00:18:59,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 00:18:59,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 00:18:59,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 00:18:59,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:59" (1/1) ... [2019-12-27 00:18:59,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:59" (1/1) ... [2019-12-27 00:18:59,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:59" (1/1) ... [2019-12-27 00:18:59,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:59" (1/1) ... [2019-12-27 00:18:59,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:59" (1/1) ... [2019-12-27 00:18:59,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:59" (1/1) ... [2019-12-27 00:18:59,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:59" (1/1) ... [2019-12-27 00:18:59,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 00:18:59,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 00:18:59,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 00:18:59,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 00:18:59,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:59" (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 [2019-12-27 00:18:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 00:18:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 00:18:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 00:18:59,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 00:18:59,772 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 00:18:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 00:18:59,772 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 00:18:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 00:18:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 00:18:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 00:18:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 00:18:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 00:18:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 00:18:59,775 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 00:19:00,129 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 00:19:00,130 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 00:19:00,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:19:00 BoogieIcfgContainer [2019-12-27 00:19:00,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 00:19:00,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 00:19:00,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 00:19:00,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 00:19:00,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 12:18:58" (1/3) ... [2019-12-27 00:19:00,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb863eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:19:00, skipping insertion in model container [2019-12-27 00:19:00,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:18:59" (2/3) ... [2019-12-27 00:19:00,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb863eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:19:00, skipping insertion in model container [2019-12-27 00:19:00,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:19:00" (3/3) ... [2019-12-27 00:19:00,140 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_tso.opt.i [2019-12-27 00:19:00,149 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 00:19:00,150 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 00:19:00,157 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 00:19:00,158 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 00:19:00,183 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,184 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,184 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,184 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,185 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,185 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,185 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,185 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,186 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,186 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,186 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,186 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,187 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,189 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,189 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,190 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,191 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,191 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,197 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,197 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,197 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,198 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,207 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,207 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,207 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,208 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,210 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,211 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,211 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,211 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:00,226 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 00:19:00,244 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:19:00,244 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:19:00,245 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:19:00,245 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:19:00,245 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:19:00,245 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:19:00,245 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:19:00,246 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:19:00,260 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 00:19:00,262 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 00:19:00,310 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 00:19:00,312 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:19:00,322 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. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 00:19:00,327 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 00:19:00,354 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 00:19:00,355 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:19:00,356 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. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 00:19:00,357 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 00:19:00,358 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:19:02,047 INFO L206 etLargeBlockEncoding]: Checked pairs total: 429 [2019-12-27 00:19:02,048 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-12-27 00:19:02,052 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 00:19:02,066 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 00:19:02,068 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 00:19:02,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 00:19:02,077 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:19:02,078 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:19:02,078 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:19:02,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:19:02,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1861325362, now seen corresponding path program 1 times [2019-12-27 00:19:02,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:19:02,094 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642909838] [2019-12-27 00:19:02,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:19:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:19:02,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:19:02,423 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642909838] [2019-12-27 00:19:02,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:19:02,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 00:19:02,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820233302] [2019-12-27 00:19:02,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:19:02,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:19:02,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:19:02,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:19:02,450 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 00:19:02,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:19:02,488 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 00:19:02,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:19:02,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 00:19:02,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:19:02,511 INFO L225 Difference]: With dead ends: 42 [2019-12-27 00:19:02,511 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 00:19:02,513 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 [2019-12-27 00:19:02,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 00:19:02,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 00:19:02,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 00:19:02,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 00:19:02,551 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 00:19:02,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:19:02,553 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 00:19:02,553 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:19:02,553 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 00:19:02,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 00:19:02,554 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:19:02,554 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:19:02,554 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:19:02,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:19:02,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1866511351, now seen corresponding path program 1 times [2019-12-27 00:19:02,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:19:02,555 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523958519] [2019-12-27 00:19:02,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:19:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:19:02,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:19:02,633 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523958519] [2019-12-27 00:19:02,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:19:02,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 00:19:02,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722024175] [2019-12-27 00:19:02,636 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:19:02,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:19:02,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:19:02,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:19:02,637 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 00:19:02,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:19:02,661 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 00:19:02,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:19:02,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 00:19:02,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:19:02,662 INFO L225 Difference]: With dead ends: 36 [2019-12-27 00:19:02,662 INFO L226 Difference]: Without dead ends: 22 [2019-12-27 00:19:02,663 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:19:02,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-27 00:19:02,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-27 00:19:02,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 00:19:02,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-27 00:19:02,668 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-27 00:19:02,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:19:02,668 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-27 00:19:02,668 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:19:02,669 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-27 00:19:02,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 00:19:02,669 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:19:02,669 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:19:02,669 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:19:02,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:19:02,670 INFO L82 PathProgramCache]: Analyzing trace with hash 2027276793, now seen corresponding path program 1 times [2019-12-27 00:19:02,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:19:02,670 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624596728] [2019-12-27 00:19:02,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:19:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:19:02,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:19:02,791 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624596728] [2019-12-27 00:19:02,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:19:02,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:19:02,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897697838] [2019-12-27 00:19:02,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:19:02,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:19:02,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:19:02,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:19:02,793 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 5 states. [2019-12-27 00:19:02,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:19:02,834 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-27 00:19:02,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 00:19:02,834 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 00:19:02,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:19:02,835 INFO L225 Difference]: With dead ends: 25 [2019-12-27 00:19:02,835 INFO L226 Difference]: Without dead ends: 19 [2019-12-27 00:19:02,836 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:19:02,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-27 00:19:02,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-27 00:19:02,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-27 00:19:02,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2019-12-27 00:19:02,839 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 10 [2019-12-27 00:19:02,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:19:02,839 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-12-27 00:19:02,839 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:19:02,840 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2019-12-27 00:19:02,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 00:19:02,840 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:19:02,840 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:19:02,841 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:19:02,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:19:02,841 INFO L82 PathProgramCache]: Analyzing trace with hash 2029948683, now seen corresponding path program 2 times [2019-12-27 00:19:02,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:19:02,842 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317455640] [2019-12-27 00:19:02,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:19:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:19:02,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:19:02,951 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317455640] [2019-12-27 00:19:02,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:19:02,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 00:19:02,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821595070] [2019-12-27 00:19:02,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 00:19:02,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:19:02,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 00:19:02,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:19:02,957 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand 6 states. [2019-12-27 00:19:03,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:19:03,041 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2019-12-27 00:19:03,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:19:03,042 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 00:19:03,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:19:03,043 INFO L225 Difference]: With dead ends: 19 [2019-12-27 00:19:03,043 INFO L226 Difference]: Without dead ends: 16 [2019-12-27 00:19:03,044 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-27 00:19:03,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-27 00:19:03,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-27 00:19:03,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-27 00:19:03,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-27 00:19:03,047 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2019-12-27 00:19:03,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:19:03,047 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-27 00:19:03,047 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 00:19:03,048 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-27 00:19:03,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 00:19:03,049 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:19:03,049 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:19:03,050 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:19:03,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:19:03,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1498585343, now seen corresponding path program 1 times [2019-12-27 00:19:03,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:19:03,051 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061928463] [2019-12-27 00:19:03,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:19:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:19:03,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:19:03,125 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061928463] [2019-12-27 00:19:03,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:19:03,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:19:03,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39215164] [2019-12-27 00:19:03,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:19:03,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:19:03,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:19:03,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:19:03,127 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-12-27 00:19:03,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:19:03,149 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-12-27 00:19:03,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:19:03,150 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 00:19:03,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:19:03,151 INFO L225 Difference]: With dead ends: 18 [2019-12-27 00:19:03,151 INFO L226 Difference]: Without dead ends: 12 [2019-12-27 00:19:03,151 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 [2019-12-27 00:19:03,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-27 00:19:03,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-27 00:19:03,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-27 00:19:03,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-27 00:19:03,162 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2019-12-27 00:19:03,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:19:03,163 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-27 00:19:03,163 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:19:03,163 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-27 00:19:03,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 00:19:03,164 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:19:03,164 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:19:03,164 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:19:03,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:19:03,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1496019473, now seen corresponding path program 2 times [2019-12-27 00:19:03,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:19:03,165 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106644338] [2019-12-27 00:19:03,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:19:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:19:03,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:19:03,236 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106644338] [2019-12-27 00:19:03,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:19:03,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:19:03,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111415037] [2019-12-27 00:19:03,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:19:03,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:19:03,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:19:03,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:19:03,238 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 4 states. [2019-12-27 00:19:03,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:19:03,258 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-27 00:19:03,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:19:03,258 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 00:19:03,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:19:03,259 INFO L225 Difference]: With dead ends: 11 [2019-12-27 00:19:03,259 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 00:19:03,259 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 [2019-12-27 00:19:03,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 00:19:03,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 00:19:03,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 00:19:03,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 00:19:03,261 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 00:19:03,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:19:03,261 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 00:19:03,262 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:19:03,262 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 00:19:03,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 00:19:03,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 12:19:03 BasicIcfg [2019-12-27 00:19:03,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 00:19:03,273 INFO L168 Benchmark]: Toolchain (without parser) took 4317.07 ms. Allocated memory was 139.5 MB in the beginning and 247.5 MB in the end (delta: 108.0 MB). Free memory was 102.9 MB in the beginning and 107.7 MB in the end (delta: -4.8 MB). Peak memory consumption was 103.2 MB. Max. memory is 7.1 GB. [2019-12-27 00:19:03,274 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 00:19:03,280 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.78 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.5 MB in the beginning and 160.9 MB in the end (delta: -58.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-12-27 00:19:03,281 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.17 ms. Allocated memory is still 203.9 MB. Free memory was 160.9 MB in the beginning and 158.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 00:19:03,282 INFO L168 Benchmark]: Boogie Preprocessor took 24.48 ms. Allocated memory is still 203.9 MB. Free memory was 158.9 MB in the beginning and 157.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 00:19:03,283 INFO L168 Benchmark]: RCFGBuilder took 431.82 ms. Allocated memory is still 203.9 MB. Free memory was 157.6 MB in the beginning and 137.1 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-27 00:19:03,284 INFO L168 Benchmark]: TraceAbstraction took 3136.09 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 136.4 MB in the beginning and 107.7 MB in the end (delta: 28.7 MB). Peak memory consumption was 72.2 MB. Max. memory is 7.1 GB. [2019-12-27 00:19:03,297 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 672.78 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 102.5 MB in the beginning and 160.9 MB in the end (delta: -58.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.17 ms. Allocated memory is still 203.9 MB. Free memory was 160.9 MB in the beginning and 158.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.48 ms. Allocated memory is still 203.9 MB. Free memory was 158.9 MB in the beginning and 157.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 431.82 ms. Allocated memory is still 203.9 MB. Free memory was 157.6 MB in the beginning and 137.1 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3136.09 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 136.4 MB in the beginning and 107.7 MB in the end (delta: 28.7 MB). Peak memory consumption was 72.2 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, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 223 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 429 CheckedPairsTotal, 46 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: 3.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 35 SDslu, 48 SDs, 0 SdLazy, 52 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1314 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...