./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe035_rmo.opt_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/pthread-wmm/safe035_rmo.opt_true-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c735c61ed1e63bb3a2a374efde66fab7a9daec6d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 00:58:39,484 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 00:58:39,486 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 00:58:39,503 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 00:58:39,505 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 00:58:39,506 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 00:58:39,511 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 00:58:39,514 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 00:58:39,518 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 00:58:39,520 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 00:58:39,523 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 00:58:39,524 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 00:58:39,526 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 00:58:39,527 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 00:58:39,531 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 00:58:39,537 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 00:58:39,540 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 00:58:39,542 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 00:58:39,548 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 00:58:39,552 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 00:58:39,553 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 00:58:39,555 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 00:58:39,557 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 00:58:39,557 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 00:58:39,557 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 00:58:39,558 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 00:58:39,560 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 00:58:39,560 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 00:58:39,561 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 00:58:39,563 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 00:58:39,563 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 00:58:39,564 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 00:58:39,564 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 00:58:39,564 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 00:58:39,565 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 00:58:39,566 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 00:58:39,567 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-01 00:58:39,582 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 00:58:39,582 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 00:58:39,584 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 00:58:39,584 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 00:58:39,584 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 00:58:39,584 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 00:58:39,584 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 00:58:39,585 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 00:58:39,586 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 00:58:39,586 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 00:58:39,586 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 00:58:39,586 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 00:58:39,586 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 00:58:39,587 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 00:58:39,587 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 00:58:39,588 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 00:58:39,588 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 00:58:39,588 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 00:58:39,588 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 00:58:39,588 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 00:58:39,589 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 00:58:39,589 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 00:58:39,589 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 00:58:39,589 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 00:58:39,589 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 00:58:39,589 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 00:58:39,591 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 00:58:39,591 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 00:58:39,591 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c735c61ed1e63bb3a2a374efde66fab7a9daec6d [2019-01-01 00:58:39,630 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 00:58:39,645 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 00:58:39,650 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 00:58:39,652 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 00:58:39,652 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 00:58:39,655 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe035_rmo.opt_true-unreach-call.i [2019-01-01 00:58:39,720 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31c599f56/33e3229fce85491785e7b757f9f808c2/FLAGe139c6c30 [2019-01-01 00:58:40,289 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 00:58:40,290 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe035_rmo.opt_true-unreach-call.i [2019-01-01 00:58:40,309 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31c599f56/33e3229fce85491785e7b757f9f808c2/FLAGe139c6c30 [2019-01-01 00:58:40,695 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31c599f56/33e3229fce85491785e7b757f9f808c2 [2019-01-01 00:58:40,699 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 00:58:40,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 00:58:40,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 00:58:40,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 00:58:40,706 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 00:58:40,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:58:40" (1/1) ... [2019-01-01 00:58:40,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f915cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:40, skipping insertion in model container [2019-01-01 00:58:40,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:58:40" (1/1) ... [2019-01-01 00:58:40,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 00:58:40,777 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 00:58:41,254 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:58:41,278 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 00:58:41,452 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:58:41,574 INFO L195 MainTranslator]: Completed translation [2019-01-01 00:58:41,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:41 WrapperNode [2019-01-01 00:58:41,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 00:58:41,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 00:58:41,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 00:58:41,577 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 00:58:41,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:41" (1/1) ... [2019-01-01 00:58:41,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:41" (1/1) ... [2019-01-01 00:58:41,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 00:58:41,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 00:58:41,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 00:58:41,651 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 00:58:41,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:41" (1/1) ... [2019-01-01 00:58:41,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:41" (1/1) ... [2019-01-01 00:58:41,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:41" (1/1) ... [2019-01-01 00:58:41,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:41" (1/1) ... [2019-01-01 00:58:41,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:41" (1/1) ... [2019-01-01 00:58:41,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:41" (1/1) ... [2019-01-01 00:58:41,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:41" (1/1) ... [2019-01-01 00:58:41,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 00:58:41,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 00:58:41,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 00:58:41,709 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 00:58:41,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:41" (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 [2019-01-01 00:58:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 00:58:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-01-01 00:58:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 00:58:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 00:58:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-01-01 00:58:41,782 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-01-01 00:58:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-01-01 00:58:41,782 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-01-01 00:58:41,782 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-01-01 00:58:41,783 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-01-01 00:58:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-01-01 00:58:41,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 00:58:41,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 00:58:41,785 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-01-01 00:58:42,264 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 00:58:42,265 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-01 00:58:42,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:58:42 BoogieIcfgContainer [2019-01-01 00:58:42,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 00:58:42,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 00:58:42,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 00:58:42,270 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 00:58:42,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 12:58:40" (1/3) ... [2019-01-01 00:58:42,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384a4f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:58:42, skipping insertion in model container [2019-01-01 00:58:42,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:58:41" (2/3) ... [2019-01-01 00:58:42,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384a4f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:58:42, skipping insertion in model container [2019-01-01 00:58:42,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:58:42" (3/3) ... [2019-01-01 00:58:42,274 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_rmo.opt_true-unreach-call.i [2019-01-01 00:58:42,310 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,311 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,311 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,311 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,311 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,312 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,312 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,312 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,312 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,312 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,313 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,313 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,313 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,313 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,313 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,314 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,314 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,314 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,314 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,314 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,315 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,315 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,315 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,315 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,315 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,316 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,316 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,316 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,316 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,316 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:42,363 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-01 00:58:42,363 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 00:58:42,374 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-01 00:58:42,393 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-01 00:58:42,420 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 00:58:42,421 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 00:58:42,421 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 00:58:42,421 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 00:58:42,421 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 00:58:42,421 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 00:58:42,421 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 00:58:42,422 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 00:58:42,422 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 00:58:42,431 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56places, 53 transitions [2019-01-01 00:58:42,570 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2019-01-01 00:58:42,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2019-01-01 00:58:42,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-01-01 00:58:42,596 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:42,598 INFO L402 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] [2019-01-01 00:58:42,603 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:42,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:42,611 INFO L82 PathProgramCache]: Analyzing trace with hash 926811069, now seen corresponding path program 1 times [2019-01-01 00:58:42,613 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:42,614 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:42,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:42,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:58:42,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:42,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:58:42,937 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:42,937 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-01 00:58:42,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 00:58:42,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 00:58:42,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 00:58:42,964 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2019-01-01 00:58:43,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:43,172 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2019-01-01 00:58:43,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 00:58:43,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-01-01 00:58:43,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:43,227 INFO L225 Difference]: With dead ends: 2493 [2019-01-01 00:58:43,228 INFO L226 Difference]: Without dead ends: 1128 [2019-01-01 00:58:43,230 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 [2019-01-01 00:58:43,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2019-01-01 00:58:43,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2019-01-01 00:58:43,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2019-01-01 00:58:43,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2019-01-01 00:58:43,393 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2019-01-01 00:58:43,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:43,394 INFO L480 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2019-01-01 00:58:43,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 00:58:43,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2019-01-01 00:58:43,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-01 00:58:43,399 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:43,399 INFO L402 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] [2019-01-01 00:58:43,399 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:43,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:43,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1479075055, now seen corresponding path program 1 times [2019-01-01 00:58:43,400 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:43,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:43,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:43,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:58:43,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:43,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:58:43,741 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:43,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 00:58:43,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-01 00:58:43,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 00:58:43,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-01 00:58:43,744 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2019-01-01 00:58:44,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:44,151 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2019-01-01 00:58:44,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 00:58:44,158 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-01-01 00:58:44,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:44,169 INFO L225 Difference]: With dead ends: 1168 [2019-01-01 00:58:44,169 INFO L226 Difference]: Without dead ends: 1044 [2019-01-01 00:58:44,171 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:58:44,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2019-01-01 00:58:44,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2019-01-01 00:58:44,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2019-01-01 00:58:44,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2019-01-01 00:58:44,223 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2019-01-01 00:58:44,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:44,223 INFO L480 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2019-01-01 00:58:44,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-01 00:58:44,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2019-01-01 00:58:44,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-01-01 00:58:44,229 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:44,229 INFO L402 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] [2019-01-01 00:58:44,229 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:44,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:44,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1495948265, now seen corresponding path program 1 times [2019-01-01 00:58:44,231 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:44,231 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:44,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:44,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:58:44,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:44,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:58:44,423 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:44,424 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 00:58:44,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 00:58:44,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 00:58:44,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-01 00:58:44,425 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2019-01-01 00:58:44,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:44,730 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2019-01-01 00:58:44,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:58:44,730 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-01-01 00:58:44,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:44,737 INFO L225 Difference]: With dead ends: 820 [2019-01-01 00:58:44,738 INFO L226 Difference]: Without dead ends: 708 [2019-01-01 00:58:44,738 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 [2019-01-01 00:58:44,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2019-01-01 00:58:44,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2019-01-01 00:58:44,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-01-01 00:58:44,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2019-01-01 00:58:44,765 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2019-01-01 00:58:44,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:44,766 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2019-01-01 00:58:44,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 00:58:44,766 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2019-01-01 00:58:44,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-01 00:58:44,770 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:44,770 INFO L402 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] [2019-01-01 00:58:44,770 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:44,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:44,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1067835993, now seen corresponding path program 1 times [2019-01-01 00:58:44,771 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:44,771 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:44,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:44,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:58:44,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:44,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:58:44,993 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:44,993 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-01-01 00:58:44,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-01 00:58:44,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 00:58:44,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-01-01 00:58:44,995 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 8 states. [2019-01-01 00:58:45,274 WARN L181 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 12 [2019-01-01 00:58:45,567 WARN L181 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2019-01-01 00:58:46,449 WARN L181 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2019-01-01 00:58:46,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:46,610 INFO L93 Difference]: Finished difference Result 2084 states and 6275 transitions. [2019-01-01 00:58:46,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-01-01 00:58:46,610 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-01-01 00:58:46,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:46,620 INFO L225 Difference]: With dead ends: 2084 [2019-01-01 00:58:46,620 INFO L226 Difference]: Without dead ends: 1220 [2019-01-01 00:58:46,621 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2019-01-01 00:58:46,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2019-01-01 00:58:46,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 708. [2019-01-01 00:58:46,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-01-01 00:58:46,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2043 transitions. [2019-01-01 00:58:46,652 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2043 transitions. Word has length 33 [2019-01-01 00:58:46,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:46,652 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2043 transitions. [2019-01-01 00:58:46,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-01 00:58:46,652 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2043 transitions. [2019-01-01 00:58:46,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-01 00:58:46,654 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:46,655 INFO L402 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] [2019-01-01 00:58:46,655 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:46,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:46,655 INFO L82 PathProgramCache]: Analyzing trace with hash -166234795, now seen corresponding path program 2 times [2019-01-01 00:58:46,655 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:46,656 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:46,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:46,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:58:46,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:46,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:58:46,888 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:46,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-01 00:58:46,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 00:58:46,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 00:58:46,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:58:46,889 INFO L87 Difference]: Start difference. First operand 708 states and 2043 transitions. Second operand 7 states. [2019-01-01 00:58:47,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:47,172 INFO L93 Difference]: Finished difference Result 1876 states and 5635 transitions. [2019-01-01 00:58:47,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-01-01 00:58:47,176 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-01-01 00:58:47,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:47,181 INFO L225 Difference]: With dead ends: 1876 [2019-01-01 00:58:47,181 INFO L226 Difference]: Without dead ends: 572 [2019-01-01 00:58:47,182 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2019-01-01 00:58:47,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2019-01-01 00:58:47,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2019-01-01 00:58:47,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2019-01-01 00:58:47,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 1703 transitions. [2019-01-01 00:58:47,201 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 1703 transitions. Word has length 33 [2019-01-01 00:58:47,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:47,201 INFO L480 AbstractCegarLoop]: Abstraction has 572 states and 1703 transitions. [2019-01-01 00:58:47,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 00:58:47,202 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 1703 transitions. [2019-01-01 00:58:47,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-01 00:58:47,203 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:47,203 INFO L402 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] [2019-01-01 00:58:47,204 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:47,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:47,204 INFO L82 PathProgramCache]: Analyzing trace with hash -659065723, now seen corresponding path program 3 times [2019-01-01 00:58:47,204 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:47,205 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:47,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:47,207 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 00:58:47,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:47,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:58:47,527 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:47,527 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-01 00:58:47,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 00:58:47,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 00:58:47,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:58:47,528 INFO L87 Difference]: Start difference. First operand 572 states and 1703 transitions. Second operand 7 states. [2019-01-01 00:58:47,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:47,697 INFO L93 Difference]: Finished difference Result 444 states and 1287 transitions. [2019-01-01 00:58:47,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:58:47,698 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-01-01 00:58:47,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:47,698 INFO L225 Difference]: With dead ends: 444 [2019-01-01 00:58:47,698 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 00:58:47,699 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-01-01 00:58:47,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 00:58:47,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 00:58:47,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 00:58:47,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 00:58:47,700 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-01-01 00:58:47,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:47,700 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 00:58:47,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 00:58:47,700 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 00:58:47,701 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 00:58:47,704 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-01 00:58:47,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 12:58:47 BasicIcfg [2019-01-01 00:58:47,707 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 00:58:47,707 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 00:58:47,707 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 00:58:47,707 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 00:58:47,708 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:58:42" (3/4) ... [2019-01-01 00:58:47,712 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 00:58:47,721 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-01-01 00:58:47,721 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-01-01 00:58:47,721 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-01-01 00:58:47,726 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-01 00:58:47,727 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-01 00:58:47,779 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 00:58:47,779 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 00:58:47,780 INFO L168 Benchmark]: Toolchain (without parser) took 7080.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.2 MB). Free memory was 952.7 MB in the beginning and 1.2 GB in the end (delta: -228.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:58:47,781 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:58:47,782 INFO L168 Benchmark]: CACSL2BoogieTranslator took 874.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -160.7 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2019-01-01 00:58:47,783 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-01-01 00:58:47,783 INFO L168 Benchmark]: Boogie Preprocessor took 57.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:58:47,784 INFO L168 Benchmark]: RCFGBuilder took 557.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2019-01-01 00:58:47,784 INFO L168 Benchmark]: TraceAbstraction took 5440.26 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 77.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -107.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:58:47,787 INFO L168 Benchmark]: Witness Printer took 72.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-01-01 00:58:47,795 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 874.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -160.7 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 557.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5440.26 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 77.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -107.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 72.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 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 7 procedures, 71 locations, 1 error locations. SAFE Result, 5.2s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 410 SDtfs, 535 SDslu, 1219 SDs, 0 SdLazy, 141 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2385occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 512 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 14142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...