/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 13:53:07,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 13:53:07,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 13:53:07,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 13:53:07,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 13:53:07,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 13:53:07,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 13:53:07,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 13:53:07,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 13:53:07,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 13:53:07,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 13:53:07,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 13:53:07,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 13:53:07,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 13:53:07,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 13:53:07,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 13:53:07,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 13:53:07,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 13:53:07,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 13:53:07,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 13:53:07,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 13:53:07,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 13:53:07,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 13:53:07,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 13:53:07,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 13:53:07,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 13:53:07,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 13:53:07,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 13:53:07,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 13:53:07,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 13:53:07,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 13:53:07,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 13:53:07,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 13:53:07,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 13:53:07,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 13:53:07,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 13:53:07,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 13:53:07,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 13:53:07,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 13:53:07,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 13:53:07,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 13:53:07,693 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-27 13:53:07,716 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 13:53:07,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 13:53:07,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 13:53:07,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 13:53:07,719 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 13:53:07,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 13:53:07,719 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 13:53:07,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 13:53:07,719 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 13:53:07,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 13:53:07,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 13:53:07,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 13:53:07,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 13:53:07,722 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 13:53:07,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 13:53:07,722 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 13:53:07,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 13:53:07,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 13:53:07,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 13:53:07,723 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 13:53:07,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 13:53:07,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 13:53:07,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 13:53:07,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 13:53:07,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 13:53:07,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 13:53:07,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 13:53:07,725 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 13:53:07,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 13:53:07,725 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 13:53:07,992 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 13:53:08,009 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 13:53:08,012 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 13:53:08,014 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 13:53:08,014 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 13:53:08,015 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i [2019-12-27 13:53:08,090 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f64e876bd/8f418d3db70e4253aeff6b8b8a4ca53d/FLAGa5fdc3628 [2019-12-27 13:53:08,650 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 13:53:08,651 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i [2019-12-27 13:53:08,664 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f64e876bd/8f418d3db70e4253aeff6b8b8a4ca53d/FLAGa5fdc3628 [2019-12-27 13:53:08,918 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f64e876bd/8f418d3db70e4253aeff6b8b8a4ca53d [2019-12-27 13:53:08,926 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 13:53:08,928 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 13:53:08,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 13:53:08,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 13:53:08,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 13:53:08,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 01:53:08" (1/1) ... [2019-12-27 13:53:08,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d35bc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:53:08, skipping insertion in model container [2019-12-27 13:53:08,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 01:53:08" (1/1) ... [2019-12-27 13:53:08,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 13:53:08,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 13:53:09,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 13:53:09,434 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 13:53:09,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 13:53:09,572 INFO L208 MainTranslator]: Completed translation [2019-12-27 13:53:09,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:53:09 WrapperNode [2019-12-27 13:53:09,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 13:53:09,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 13:53:09,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 13:53:09,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 13:53:09,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:53:09" (1/1) ... [2019-12-27 13:53:09,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:53:09" (1/1) ... [2019-12-27 13:53:09,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 13:53:09,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 13:53:09,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 13:53:09,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 13:53:09,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:53:09" (1/1) ... [2019-12-27 13:53:09,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:53:09" (1/1) ... [2019-12-27 13:53:09,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:53:09" (1/1) ... [2019-12-27 13:53:09,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:53:09" (1/1) ... [2019-12-27 13:53:09,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:53:09" (1/1) ... [2019-12-27 13:53:09,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:53:09" (1/1) ... [2019-12-27 13:53:09,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:53:09" (1/1) ... [2019-12-27 13:53:09,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 13:53:09,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 13:53:09,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 13:53:09,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 13:53:09,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:53:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 13:53:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 13:53:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 13:53:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 13:53:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 13:53:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 13:53:09,734 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 13:53:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 13:53:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 13:53:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 13:53:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 13:53:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-27 13:53:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-27 13:53:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 13:53:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 13:53:09,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 13:53:09,738 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 13:53:10,090 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 13:53:10,091 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 13:53:10,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 01:53:10 BoogieIcfgContainer [2019-12-27 13:53:10,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 13:53:10,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 13:53:10,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 13:53:10,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 13:53:10,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 01:53:08" (1/3) ... [2019-12-27 13:53:10,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d3275c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 01:53:10, skipping insertion in model container [2019-12-27 13:53:10,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:53:09" (2/3) ... [2019-12-27 13:53:10,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d3275c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 01:53:10, skipping insertion in model container [2019-12-27 13:53:10,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 01:53:10" (3/3) ... [2019-12-27 13:53:10,101 INFO L109 eAbstractionObserver]: Analyzing ICFG safe016_tso.opt.i [2019-12-27 13:53:10,111 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 13:53:10,112 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 13:53:10,119 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 13:53:10,120 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 13:53:10,168 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,168 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,169 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,169 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,169 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,170 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,171 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,171 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,171 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,171 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,173 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,173 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,174 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,174 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,174 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,174 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,175 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,175 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,175 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,175 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,176 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,176 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,176 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,177 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,180 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,181 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,181 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,181 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,186 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,186 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,187 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,187 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,189 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,189 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,189 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,189 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,192 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,192 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,192 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,193 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:53:10,220 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 13:53:10,236 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 13:53:10,236 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 13:53:10,237 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 13:53:10,237 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 13:53:10,237 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 13:53:10,237 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 13:53:10,237 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 13:53:10,237 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 13:53:10,249 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 63 transitions [2019-12-27 13:53:10,601 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5471 states. [2019-12-27 13:53:10,605 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states. [2019-12-27 13:53:10,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 13:53:10,637 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:53:10,638 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 13:53:10,638 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:53:10,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:53:10,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1464482597, now seen corresponding path program 1 times [2019-12-27 13:53:10,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:53:10,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093993291] [2019-12-27 13:53:10,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:53:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:53:11,060 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 13:53:11,061 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093993291] [2019-12-27 13:53:11,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:53:11,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 13:53:11,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107902533] [2019-12-27 13:53:11,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 13:53:11,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:53:11,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 13:53:11,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 13:53:11,084 INFO L87 Difference]: Start difference. First operand 5471 states. Second operand 4 states. [2019-12-27 13:53:11,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:53:11,290 INFO L93 Difference]: Finished difference Result 5708 states and 21933 transitions. [2019-12-27 13:53:11,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 13:53:11,295 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2019-12-27 13:53:11,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:53:11,348 INFO L225 Difference]: With dead ends: 5708 [2019-12-27 13:53:11,349 INFO L226 Difference]: Without dead ends: 2392 [2019-12-27 13:53:11,353 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 13:53:11,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2019-12-27 13:53:11,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2392. [2019-12-27 13:53:11,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2392 states. [2019-12-27 13:53:11,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 8936 transitions. [2019-12-27 13:53:11,576 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 8936 transitions. Word has length 34 [2019-12-27 13:53:11,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:53:11,578 INFO L462 AbstractCegarLoop]: Abstraction has 2392 states and 8936 transitions. [2019-12-27 13:53:11,578 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 13:53:11,579 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 8936 transitions. [2019-12-27 13:53:11,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-27 13:53:11,585 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:53:11,585 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 13:53:11,585 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:53:11,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:53:11,586 INFO L82 PathProgramCache]: Analyzing trace with hash -652001662, now seen corresponding path program 1 times [2019-12-27 13:53:11,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:53:11,587 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162838523] [2019-12-27 13:53:11,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:53:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:53:11,843 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 13:53:11,843 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162838523] [2019-12-27 13:53:11,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:53:11,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 13:53:11,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745542060] [2019-12-27 13:53:11,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 13:53:11,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:53:11,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 13:53:11,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 13:53:11,850 INFO L87 Difference]: Start difference. First operand 2392 states and 8936 transitions. Second operand 5 states. [2019-12-27 13:53:11,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:53:11,986 INFO L93 Difference]: Finished difference Result 2563 states and 9320 transitions. [2019-12-27 13:53:11,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 13:53:11,987 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-12-27 13:53:11,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:53:12,008 INFO L225 Difference]: With dead ends: 2563 [2019-12-27 13:53:12,009 INFO L226 Difference]: Without dead ends: 2308 [2019-12-27 13:53:12,011 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 13:53:12,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2019-12-27 13:53:12,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 2308. [2019-12-27 13:53:12,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2308 states. [2019-12-27 13:53:12,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2308 states to 2308 states and 8544 transitions. [2019-12-27 13:53:12,146 INFO L78 Accepts]: Start accepts. Automaton has 2308 states and 8544 transitions. Word has length 35 [2019-12-27 13:53:12,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:53:12,147 INFO L462 AbstractCegarLoop]: Abstraction has 2308 states and 8544 transitions. [2019-12-27 13:53:12,147 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 13:53:12,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2308 states and 8544 transitions. [2019-12-27 13:53:12,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-27 13:53:12,155 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:53:12,155 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 13:53:12,155 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:53:12,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:53:12,156 INFO L82 PathProgramCache]: Analyzing trace with hash 2093307712, now seen corresponding path program 1 times [2019-12-27 13:53:12,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:53:12,158 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124983548] [2019-12-27 13:53:12,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:53:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:53:12,401 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 13:53:12,401 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124983548] [2019-12-27 13:53:12,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:53:12,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 13:53:12,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461326647] [2019-12-27 13:53:12,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 13:53:12,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:53:12,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 13:53:12,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 13:53:12,404 INFO L87 Difference]: Start difference. First operand 2308 states and 8544 transitions. Second operand 6 states. [2019-12-27 13:53:12,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:53:12,553 INFO L93 Difference]: Finished difference Result 2173 states and 7680 transitions. [2019-12-27 13:53:12,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 13:53:12,553 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2019-12-27 13:53:12,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:53:12,570 INFO L225 Difference]: With dead ends: 2173 [2019-12-27 13:53:12,570 INFO L226 Difference]: Without dead ends: 1930 [2019-12-27 13:53:12,571 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 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 13:53:12,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2019-12-27 13:53:12,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1930. [2019-12-27 13:53:12,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1930 states. [2019-12-27 13:53:12,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1930 states to 1930 states and 6906 transitions. [2019-12-27 13:53:12,641 INFO L78 Accepts]: Start accepts. Automaton has 1930 states and 6906 transitions. Word has length 36 [2019-12-27 13:53:12,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:53:12,642 INFO L462 AbstractCegarLoop]: Abstraction has 1930 states and 6906 transitions. [2019-12-27 13:53:12,642 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 13:53:12,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1930 states and 6906 transitions. [2019-12-27 13:53:12,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-12-27 13:53:12,647 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:53:12,647 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 13:53:12,647 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:53:12,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:53:12,648 INFO L82 PathProgramCache]: Analyzing trace with hash 413695457, now seen corresponding path program 1 times [2019-12-27 13:53:12,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:53:12,648 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959688326] [2019-12-27 13:53:12,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:53:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:53:12,875 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 13:53:12,876 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959688326] [2019-12-27 13:53:12,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:53:12,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 13:53:12,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881489880] [2019-12-27 13:53:12,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 13:53:12,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:53:12,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 13:53:12,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-27 13:53:12,879 INFO L87 Difference]: Start difference. First operand 1930 states and 6906 transitions. Second operand 7 states. [2019-12-27 13:53:13,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:53:13,038 INFO L93 Difference]: Finished difference Result 1363 states and 4530 transitions. [2019-12-27 13:53:13,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 13:53:13,039 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2019-12-27 13:53:13,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:53:13,049 INFO L225 Difference]: With dead ends: 1363 [2019-12-27 13:53:13,049 INFO L226 Difference]: Without dead ends: 1174 [2019-12-27 13:53:13,050 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-12-27 13:53:13,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2019-12-27 13:53:13,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1174. [2019-12-27 13:53:13,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2019-12-27 13:53:13,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 3882 transitions. [2019-12-27 13:53:13,090 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 3882 transitions. Word has length 37 [2019-12-27 13:53:13,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:53:13,091 INFO L462 AbstractCegarLoop]: Abstraction has 1174 states and 3882 transitions. [2019-12-27 13:53:13,091 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 13:53:13,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 3882 transitions. [2019-12-27 13:53:13,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-27 13:53:13,095 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:53:13,095 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 13:53:13,095 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:53:13,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:53:13,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1379899273, now seen corresponding path program 1 times [2019-12-27 13:53:13,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:53:13,096 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320202375] [2019-12-27 13:53:13,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:53:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:53:13,194 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 13:53:13,194 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320202375] [2019-12-27 13:53:13,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:53:13,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 13:53:13,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768740034] [2019-12-27 13:53:13,196 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 13:53:13,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:53:13,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 13:53:13,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-27 13:53:13,197 INFO L87 Difference]: Start difference. First operand 1174 states and 3882 transitions. Second operand 6 states. [2019-12-27 13:53:13,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:53:13,305 INFO L93 Difference]: Finished difference Result 1903 states and 6303 transitions. [2019-12-27 13:53:13,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 13:53:13,306 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-12-27 13:53:13,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:53:13,315 INFO L225 Difference]: With dead ends: 1903 [2019-12-27 13:53:13,316 INFO L226 Difference]: Without dead ends: 1066 [2019-12-27 13:53:13,316 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-27 13:53:13,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2019-12-27 13:53:13,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2019-12-27 13:53:13,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2019-12-27 13:53:13,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3498 transitions. [2019-12-27 13:53:13,354 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3498 transitions. Word has length 38 [2019-12-27 13:53:13,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:53:13,354 INFO L462 AbstractCegarLoop]: Abstraction has 1066 states and 3498 transitions. [2019-12-27 13:53:13,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 13:53:13,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3498 transitions. [2019-12-27 13:53:13,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-27 13:53:13,358 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:53:13,358 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 13:53:13,358 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:53:13,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:53:13,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1718693025, now seen corresponding path program 2 times [2019-12-27 13:53:13,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:53:13,359 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799189884] [2019-12-27 13:53:13,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:53:13,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:53:13,529 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 13:53:13,530 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799189884] [2019-12-27 13:53:13,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:53:13,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 13:53:13,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283868988] [2019-12-27 13:53:13,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 13:53:13,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:53:13,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 13:53:13,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-27 13:53:13,532 INFO L87 Difference]: Start difference. First operand 1066 states and 3498 transitions. Second operand 8 states. [2019-12-27 13:53:13,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:53:13,788 INFO L93 Difference]: Finished difference Result 2407 states and 8022 transitions. [2019-12-27 13:53:13,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-27 13:53:13,789 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2019-12-27 13:53:13,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:53:13,798 INFO L225 Difference]: With dead ends: 2407 [2019-12-27 13:53:13,799 INFO L226 Difference]: Without dead ends: 1177 [2019-12-27 13:53:13,799 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-12-27 13:53:13,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2019-12-27 13:53:13,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1015. [2019-12-27 13:53:13,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2019-12-27 13:53:13,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 3330 transitions. [2019-12-27 13:53:13,834 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 3330 transitions. Word has length 38 [2019-12-27 13:53:13,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:53:13,834 INFO L462 AbstractCegarLoop]: Abstraction has 1015 states and 3330 transitions. [2019-12-27 13:53:13,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 13:53:13,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 3330 transitions. [2019-12-27 13:53:13,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-27 13:53:13,837 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:53:13,837 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 13:53:13,838 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:53:13,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:53:13,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1325953903, now seen corresponding path program 3 times [2019-12-27 13:53:13,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:53:13,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295060806] [2019-12-27 13:53:13,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:53:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:53:14,006 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 13:53:14,007 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295060806] [2019-12-27 13:53:14,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:53:14,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 13:53:14,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719316224] [2019-12-27 13:53:14,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 13:53:14,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:53:14,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 13:53:14,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-27 13:53:14,009 INFO L87 Difference]: Start difference. First operand 1015 states and 3330 transitions. Second operand 7 states. [2019-12-27 13:53:14,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:53:14,142 INFO L93 Difference]: Finished difference Result 1537 states and 5133 transitions. [2019-12-27 13:53:14,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 13:53:14,143 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-12-27 13:53:14,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:53:14,151 INFO L225 Difference]: With dead ends: 1537 [2019-12-27 13:53:14,152 INFO L226 Difference]: Without dead ends: 1003 [2019-12-27 13:53:14,152 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-12-27 13:53:14,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2019-12-27 13:53:14,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2019-12-27 13:53:14,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1003 states. [2019-12-27 13:53:14,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 3300 transitions. [2019-12-27 13:53:14,194 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 3300 transitions. Word has length 38 [2019-12-27 13:53:14,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:53:14,195 INFO L462 AbstractCegarLoop]: Abstraction has 1003 states and 3300 transitions. [2019-12-27 13:53:14,195 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 13:53:14,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 3300 transitions. [2019-12-27 13:53:14,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-27 13:53:14,199 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:53:14,199 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 13:53:14,199 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:53:14,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:53:14,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1055873953, now seen corresponding path program 4 times [2019-12-27 13:53:14,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:53:14,201 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120615143] [2019-12-27 13:53:14,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:53:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:53:14,344 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 13:53:14,345 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120615143] [2019-12-27 13:53:14,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:53:14,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 13:53:14,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828458653] [2019-12-27 13:53:14,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 13:53:14,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:53:14,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 13:53:14,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 13:53:14,347 INFO L87 Difference]: Start difference. First operand 1003 states and 3300 transitions. Second operand 7 states. [2019-12-27 13:53:14,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:53:14,432 INFO L93 Difference]: Finished difference Result 841 states and 2706 transitions. [2019-12-27 13:53:14,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 13:53:14,433 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-12-27 13:53:14,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:53:14,433 INFO L225 Difference]: With dead ends: 841 [2019-12-27 13:53:14,433 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 13:53:14,434 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-27 13:53:14,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 13:53:14,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 13:53:14,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 13:53:14,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 13:53:14,435 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2019-12-27 13:53:14,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:53:14,435 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 13:53:14,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 13:53:14,435 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 13:53:14,435 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 13:53:14,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 01:53:14 BasicIcfg [2019-12-27 13:53:14,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 13:53:14,443 INFO L168 Benchmark]: Toolchain (without parser) took 5515.46 ms. Allocated memory was 138.4 MB in the beginning and 317.7 MB in the end (delta: 179.3 MB). Free memory was 99.8 MB in the beginning and 164.1 MB in the end (delta: -64.3 MB). Peak memory consumption was 115.0 MB. Max. memory is 7.1 GB. [2019-12-27 13:53:14,444 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-27 13:53:14,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.88 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 99.4 MB in the beginning and 158.5 MB in the end (delta: -59.1 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2019-12-27 13:53:14,446 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.63 ms. Allocated memory is still 201.9 MB. Free memory was 158.5 MB in the beginning and 155.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-27 13:53:14,447 INFO L168 Benchmark]: Boogie Preprocessor took 25.27 ms. Allocated memory is still 201.9 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 13:53:14,447 INFO L168 Benchmark]: RCFGBuilder took 428.82 ms. Allocated memory is still 201.9 MB. Free memory was 154.5 MB in the beginning and 132.3 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2019-12-27 13:53:14,448 INFO L168 Benchmark]: TraceAbstraction took 4347.86 ms. Allocated memory was 201.9 MB in the beginning and 317.7 MB in the end (delta: 115.9 MB). Free memory was 132.3 MB in the beginning and 164.1 MB in the end (delta: -31.8 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2019-12-27 13:53:14,453 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 645.88 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 99.4 MB in the beginning and 158.5 MB in the end (delta: -59.1 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 62.63 ms. Allocated memory is still 201.9 MB. Free memory was 158.5 MB in the beginning and 155.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.27 ms. Allocated memory is still 201.9 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 428.82 ms. Allocated memory is still 201.9 MB. Free memory was 154.5 MB in the beginning and 132.3 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4347.86 ms. Allocated memory was 201.9 MB in the beginning and 317.7 MB in the end (delta: 115.9 MB). Free memory was 132.3 MB in the beginning and 164.1 MB in the end (delta: -31.8 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 5 procedures, 63 locations, 1 error locations. Result: SAFE, OverallTime: 4.2s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 472 SDtfs, 786 SDslu, 1322 SDs, 0 SdLazy, 180 SolverSat, 89 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5471occurred 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: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 162 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 294 NumberOfCodeBlocks, 294 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 29326 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...