./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/17_szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bbb3a994-acaa-41a6-93ac-bfa71a0acd35/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bbb3a994-acaa-41a6-93ac-bfa71a0acd35/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bbb3a994-acaa-41a6-93ac-bfa71a0acd35/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bbb3a994-acaa-41a6-93ac-bfa71a0acd35/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/17_szymanski.i -s /tmp/vcloud-vcloud-master/worker/working_dir_bbb3a994-acaa-41a6-93ac-bfa71a0acd35/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bbb3a994-acaa-41a6-93ac-bfa71a0acd35/bin/uautomizer --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 163d317c9aa89a15ed49ae50938a3120a9d146c8 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:54:20,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:20,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:20,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:20,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:20,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:20,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:20,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:20,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:20,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:20,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:20,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:20,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:20,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:20,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:20,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:20,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:20,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:20,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:20,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:20,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:20,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:20,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:20,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:20,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:20,886 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:20,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:20,887 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:20,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:20,888 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:20,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:20,889 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:20,890 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:20,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:20,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:20,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:20,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:20,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:20,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:20,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:20,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:20,894 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bbb3a994-acaa-41a6-93ac-bfa71a0acd35/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:54:20,905 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:20,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:20,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:20,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:20,907 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:20,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:20,907 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:20,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:20,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:20,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:20,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:20,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:20,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:20,909 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:20,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:20,909 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:20,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:20,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:20,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:20,910 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:20,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:20,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:20,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:20,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:20,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:20,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:54:20,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:54:20,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:20,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_bbb3a994-acaa-41a6-93ac-bfa71a0acd35/bin/uautomizer 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 -> 163d317c9aa89a15ed49ae50938a3120a9d146c8 [2019-10-22 08:54:20,946 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:20,961 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:20,964 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:20,966 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:20,966 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:20,967 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bbb3a994-acaa-41a6-93ac-bfa71a0acd35/bin/uautomizer/../../sv-benchmarks/c/pthread-ext/17_szymanski.i [2019-10-22 08:54:21,013 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bbb3a994-acaa-41a6-93ac-bfa71a0acd35/bin/uautomizer/data/9cb2cb27f/dba6db09f5e345e0ac2be04642972445/FLAG5435e66fd [2019-10-22 08:54:21,462 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:21,462 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bbb3a994-acaa-41a6-93ac-bfa71a0acd35/sv-benchmarks/c/pthread-ext/17_szymanski.i [2019-10-22 08:54:21,478 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bbb3a994-acaa-41a6-93ac-bfa71a0acd35/bin/uautomizer/data/9cb2cb27f/dba6db09f5e345e0ac2be04642972445/FLAG5435e66fd [2019-10-22 08:54:21,494 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bbb3a994-acaa-41a6-93ac-bfa71a0acd35/bin/uautomizer/data/9cb2cb27f/dba6db09f5e345e0ac2be04642972445 [2019-10-22 08:54:21,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:21,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:21,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:21,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:21,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:21,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:21" (1/1) ... [2019-10-22 08:54:21,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4deedcda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:21, skipping insertion in model container [2019-10-22 08:54:21,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:21" (1/1) ... [2019-10-22 08:54:21,515 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:21,556 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:21,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:21,953 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:22,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:22,084 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:22,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:22 WrapperNode [2019-10-22 08:54:22,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:22,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:22,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:22,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:22,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:22" (1/1) ... [2019-10-22 08:54:22,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:22" (1/1) ... [2019-10-22 08:54:22,129 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:22,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:22,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:22,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:22,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:22" (1/1) ... [2019-10-22 08:54:22,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:22" (1/1) ... [2019-10-22 08:54:22,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:22" (1/1) ... [2019-10-22 08:54:22,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:22" (1/1) ... [2019-10-22 08:54:22,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:22" (1/1) ... [2019-10-22 08:54:22,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:22" (1/1) ... [2019-10-22 08:54:22,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:22" (1/1) ... [2019-10-22 08:54:22,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:22,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:22,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:22,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:22,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bbb3a994-acaa-41a6-93ac-bfa71a0acd35/bin/uautomizer/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 [2019-10-22 08:54:22,224 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-10-22 08:54:22,225 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-10-22 08:54:22,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:54:22,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:54:22,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:54:22,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:22,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:22,228 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 08:54:22,629 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:22,629 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-10-22 08:54:22,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:22 BoogieIcfgContainer [2019-10-22 08:54:22,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:22,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:22,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:22,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:22,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:21" (1/3) ... [2019-10-22 08:54:22,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a18ebb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:22, skipping insertion in model container [2019-10-22 08:54:22,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:22" (2/3) ... [2019-10-22 08:54:22,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a18ebb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:22, skipping insertion in model container [2019-10-22 08:54:22,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:22" (3/3) ... [2019-10-22 08:54:22,641 INFO L109 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2019-10-22 08:54:22,677 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:22,678 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:22,678 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:22,679 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:22,679 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:22,679 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:54:22,689 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:54:22,690 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:22,698 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 08:54:22,708 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 08:54:22,725 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:22,725 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:54:22,725 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:22,725 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:22,726 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:22,726 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:22,726 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:22,726 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:22,735 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 80 transitions [2019-10-22 08:54:22,774 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 561 states. [2019-10-22 08:54:22,781 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states. [2019-10-22 08:54:22,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 08:54:22,791 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:22,792 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:22,793 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:22,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:22,799 INFO L82 PathProgramCache]: Analyzing trace with hash 817076615, now seen corresponding path program 1 times [2019-10-22 08:54:22,807 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:22,808 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33977067] [2019-10-22 08:54:22,808 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:22,808 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:22,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:22,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:22,941 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33977067] [2019-10-22 08:54:22,941 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:22,942 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:54:22,942 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907046844] [2019-10-22 08:54:22,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:54:22,946 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:22,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:54:22,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:54:22,958 INFO L87 Difference]: Start difference. First operand 561 states. Second operand 2 states. [2019-10-22 08:54:22,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:22,987 INFO L93 Difference]: Finished difference Result 330 states and 830 transitions. [2019-10-22 08:54:22,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:54:22,989 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2019-10-22 08:54:22,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:23,010 INFO L225 Difference]: With dead ends: 330 [2019-10-22 08:54:23,010 INFO L226 Difference]: Without dead ends: 330 [2019-10-22 08:54:23,012 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:54:23,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-10-22 08:54:23,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2019-10-22 08:54:23,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2019-10-22 08:54:23,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 830 transitions. [2019-10-22 08:54:23,083 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 830 transitions. Word has length 21 [2019-10-22 08:54:23,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:23,083 INFO L462 AbstractCegarLoop]: Abstraction has 330 states and 830 transitions. [2019-10-22 08:54:23,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:54:23,084 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 830 transitions. [2019-10-22 08:54:23,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 08:54:23,085 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:23,085 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:23,085 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:23,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:23,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1735080346, now seen corresponding path program 1 times [2019-10-22 08:54:23,086 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:23,086 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87718382] [2019-10-22 08:54:23,086 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:23,086 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:23,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:23,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:23,145 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87718382] [2019-10-22 08:54:23,145 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:23,145 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:23,145 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977322652] [2019-10-22 08:54:23,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:23,147 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:23,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:23,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:23,148 INFO L87 Difference]: Start difference. First operand 330 states and 830 transitions. Second operand 3 states. [2019-10-22 08:54:23,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:23,180 INFO L93 Difference]: Finished difference Result 525 states and 1351 transitions. [2019-10-22 08:54:23,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:23,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-10-22 08:54:23,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:23,185 INFO L225 Difference]: With dead ends: 525 [2019-10-22 08:54:23,185 INFO L226 Difference]: Without dead ends: 525 [2019-10-22 08:54:23,186 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:23,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2019-10-22 08:54:23,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 347. [2019-10-22 08:54:23,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-10-22 08:54:23,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 873 transitions. [2019-10-22 08:54:23,214 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 873 transitions. Word has length 21 [2019-10-22 08:54:23,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:23,214 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 873 transitions. [2019-10-22 08:54:23,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:23,215 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 873 transitions. [2019-10-22 08:54:23,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 08:54:23,217 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:23,217 INFO L380 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] [2019-10-22 08:54:23,218 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:23,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:23,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1644350855, now seen corresponding path program 1 times [2019-10-22 08:54:23,218 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:23,218 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076307055] [2019-10-22 08:54:23,219 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:23,219 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:23,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:23,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:23,292 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076307055] [2019-10-22 08:54:23,292 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:23,292 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:23,292 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040187772] [2019-10-22 08:54:23,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:23,293 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:23,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:23,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:23,293 INFO L87 Difference]: Start difference. First operand 347 states and 873 transitions. Second operand 3 states. [2019-10-22 08:54:23,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:23,317 INFO L93 Difference]: Finished difference Result 493 states and 1264 transitions. [2019-10-22 08:54:23,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:23,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-22 08:54:23,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:23,321 INFO L225 Difference]: With dead ends: 493 [2019-10-22 08:54:23,321 INFO L226 Difference]: Without dead ends: 493 [2019-10-22 08:54:23,322 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:23,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2019-10-22 08:54:23,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 339. [2019-10-22 08:54:23,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2019-10-22 08:54:23,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 832 transitions. [2019-10-22 08:54:23,361 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 832 transitions. Word has length 25 [2019-10-22 08:54:23,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:23,362 INFO L462 AbstractCegarLoop]: Abstraction has 339 states and 832 transitions. [2019-10-22 08:54:23,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:23,362 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 832 transitions. [2019-10-22 08:54:23,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 08:54:23,364 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:23,364 INFO L380 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] [2019-10-22 08:54:23,364 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:23,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:23,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1094022729, now seen corresponding path program 1 times [2019-10-22 08:54:23,365 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:23,365 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837442333] [2019-10-22 08:54:23,365 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:23,365 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:23,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:23,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:23,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837442333] [2019-10-22 08:54:23,424 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:23,424 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:23,424 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964947516] [2019-10-22 08:54:23,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:23,424 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:23,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:23,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:23,425 INFO L87 Difference]: Start difference. First operand 339 states and 832 transitions. Second operand 3 states. [2019-10-22 08:54:23,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:23,490 INFO L93 Difference]: Finished difference Result 361 states and 866 transitions. [2019-10-22 08:54:23,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:23,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-10-22 08:54:23,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:23,492 INFO L225 Difference]: With dead ends: 361 [2019-10-22 08:54:23,493 INFO L226 Difference]: Without dead ends: 361 [2019-10-22 08:54:23,493 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:23,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2019-10-22 08:54:23,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2019-10-22 08:54:23,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2019-10-22 08:54:23,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 866 transitions. [2019-10-22 08:54:23,513 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 866 transitions. Word has length 34 [2019-10-22 08:54:23,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:23,513 INFO L462 AbstractCegarLoop]: Abstraction has 361 states and 866 transitions. [2019-10-22 08:54:23,513 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:23,513 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 866 transitions. [2019-10-22 08:54:23,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 08:54:23,515 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:23,515 INFO L380 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] [2019-10-22 08:54:23,515 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:23,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:23,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1259630975, now seen corresponding path program 2 times [2019-10-22 08:54:23,516 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:23,516 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496129271] [2019-10-22 08:54:23,516 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:23,516 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:23,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:23,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:23,570 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496129271] [2019-10-22 08:54:23,570 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:23,570 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:23,570 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30976139] [2019-10-22 08:54:23,571 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:23,571 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:23,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:23,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:23,571 INFO L87 Difference]: Start difference. First operand 361 states and 866 transitions. Second operand 3 states. [2019-10-22 08:54:23,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:23,649 INFO L93 Difference]: Finished difference Result 366 states and 853 transitions. [2019-10-22 08:54:23,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:23,650 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-10-22 08:54:23,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:23,652 INFO L225 Difference]: With dead ends: 366 [2019-10-22 08:54:23,652 INFO L226 Difference]: Without dead ends: 365 [2019-10-22 08:54:23,652 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:23,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2019-10-22 08:54:23,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 363. [2019-10-22 08:54:23,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2019-10-22 08:54:23,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 845 transitions. [2019-10-22 08:54:23,668 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 845 transitions. Word has length 34 [2019-10-22 08:54:23,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:23,669 INFO L462 AbstractCegarLoop]: Abstraction has 363 states and 845 transitions. [2019-10-22 08:54:23,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:23,669 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 845 transitions. [2019-10-22 08:54:23,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 08:54:23,670 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:23,670 INFO L380 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] [2019-10-22 08:54:23,671 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:23,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:23,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1104223524, now seen corresponding path program 1 times [2019-10-22 08:54:23,671 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:23,672 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90185494] [2019-10-22 08:54:23,672 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:23,672 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:23,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:23,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:23,696 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90185494] [2019-10-22 08:54:23,697 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:23,697 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:23,697 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889468801] [2019-10-22 08:54:23,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:23,698 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:23,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:23,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:23,698 INFO L87 Difference]: Start difference. First operand 363 states and 845 transitions. Second operand 3 states. [2019-10-22 08:54:23,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:23,745 INFO L93 Difference]: Finished difference Result 363 states and 833 transitions. [2019-10-22 08:54:23,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:23,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-10-22 08:54:23,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:23,748 INFO L225 Difference]: With dead ends: 363 [2019-10-22 08:54:23,748 INFO L226 Difference]: Without dead ends: 363 [2019-10-22 08:54:23,748 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:23,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2019-10-22 08:54:23,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2019-10-22 08:54:23,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2019-10-22 08:54:23,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 833 transitions. [2019-10-22 08:54:23,760 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 833 transitions. Word has length 34 [2019-10-22 08:54:23,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:23,760 INFO L462 AbstractCegarLoop]: Abstraction has 363 states and 833 transitions. [2019-10-22 08:54:23,760 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:23,760 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 833 transitions. [2019-10-22 08:54:23,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 08:54:23,762 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:23,762 INFO L380 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] [2019-10-22 08:54:23,762 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:23,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:23,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1998179650, now seen corresponding path program 2 times [2019-10-22 08:54:23,763 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:23,763 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65765437] [2019-10-22 08:54:23,763 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:23,763 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:23,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:23,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:23,799 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65765437] [2019-10-22 08:54:23,799 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:23,799 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:54:23,800 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789614053] [2019-10-22 08:54:23,800 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:54:23,800 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:54:23,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:54:23,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:23,801 INFO L87 Difference]: Start difference. First operand 363 states and 833 transitions. Second operand 3 states. [2019-10-22 08:54:23,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:23,862 INFO L93 Difference]: Finished difference Result 289 states and 653 transitions. [2019-10-22 08:54:23,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:23,862 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-10-22 08:54:23,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:23,863 INFO L225 Difference]: With dead ends: 289 [2019-10-22 08:54:23,863 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:54:23,863 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:54:23,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:54:23,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:54:23,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:54:23,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:54:23,864 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-10-22 08:54:23,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:23,864 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:54:23,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:54:23,864 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:54:23,865 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:54:23,868 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:54:23,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:54:23 BasicIcfg [2019-10-22 08:54:23,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:54:23,871 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:54:23,871 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:54:23,872 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:54:23,872 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:22" (3/4) ... [2019-10-22 08:54:23,876 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:54:23,882 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2019-10-22 08:54:23,888 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-10-22 08:54:23,890 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:54:23,937 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bbb3a994-acaa-41a6-93ac-bfa71a0acd35/bin/uautomizer/witness.graphml [2019-10-22 08:54:23,938 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:54:23,940 INFO L168 Benchmark]: Toolchain (without parser) took 2441.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 939.3 MB in the beginning and 965.0 MB in the end (delta: -25.8 MB). Peak memory consumption was 118.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:23,940 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:23,941 INFO L168 Benchmark]: CACSL2BoogieTranslator took 586.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -177.1 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:23,941 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.71 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:23,942 INFO L168 Benchmark]: Boogie Preprocessor took 26.21 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. [2019-10-22 08:54:23,942 INFO L168 Benchmark]: RCFGBuilder took 474.70 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:23,942 INFO L168 Benchmark]: TraceAbstraction took 1239.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.4 MB in the end (delta: 112.8 MB). Peak memory consumption was 112.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:23,943 INFO L168 Benchmark]: Witness Printer took 66.37 ms. Allocated memory is still 1.2 GB. Free memory was 970.4 MB in the beginning and 965.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:23,945 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 586.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -177.1 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.71 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.21 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 474.70 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1239.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.4 MB in the end (delta: 112.8 MB). Peak memory consumption was 112.8 MB. Max. memory is 11.5 GB. * Witness Printer took 66.37 ms. Allocated memory is still 1.2 GB. Free memory was 970.4 MB in the beginning and 965.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 705]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 77 locations, 3 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 509 SDtfs, 199 SDslu, 221 SDs, 0 SdLazy, 96 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=561occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 334 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 203 NumberOfCodeBlocks, 203 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 6744 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...