./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe025_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d21db94d-7777-4d91-ab4d-df05e18c9b01/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d21db94d-7777-4d91-ab4d-df05e18c9b01/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d21db94d-7777-4d91-ab4d-df05e18c9b01/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d21db94d-7777-4d91-ab4d-df05e18c9b01/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe025_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d21db94d-7777-4d91-ab4d-df05e18c9b01/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d21db94d-7777-4d91-ab4d-df05e18c9b01/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 e582d929204997136f783dc3bbc5b7d5f0ce2f78 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 15:43:56,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:43:56,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:43:56,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:43:56,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:43:56,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:43:56,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:43:56,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:43:56,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:43:56,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:43:56,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:43:56,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:43:56,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:43:56,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:43:56,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:43:56,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:43:56,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:43:56,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:43:56,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:43:56,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:43:56,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:43:56,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:43:56,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:43:56,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:43:56,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:43:56,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:43:56,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:43:56,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:43:56,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:43:56,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:43:56,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:43:56,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:43:56,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:43:56,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:43:56,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:43:56,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:43:56,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:43:56,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:43:56,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:43:56,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:43:56,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:43:56,037 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d21db94d-7777-4d91-ab4d-df05e18c9b01/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 15:43:56,046 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:43:56,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:43:56,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:43:56,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:43:56,047 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:43:56,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:43:56,047 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:43:56,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:43:56,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:43:56,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:43:56,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:43:56,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:43:56,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:43:56,048 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:43:56,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:43:56,048 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:43:56,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:43:56,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:43:56,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:43:56,049 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:43:56,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:43:56,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:43:56,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:43:56,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:43:56,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:43:56,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:43:56,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:43:56,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:43:56,050 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:43:56,050 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/run_dir_d21db94d-7777-4d91-ab4d-df05e18c9b01/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 -> e582d929204997136f783dc3bbc5b7d5f0ce2f78 [2019-12-07 15:43:56,154 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:43:56,165 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:43:56,168 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:43:56,169 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:43:56,169 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:43:56,170 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d21db94d-7777-4d91-ab4d-df05e18c9b01/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe025_tso.opt.i [2019-12-07 15:43:56,217 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d21db94d-7777-4d91-ab4d-df05e18c9b01/bin/uautomizer/data/b2301fc75/13f536647ef64799883c8b974188c761/FLAG1139c434b [2019-12-07 15:43:56,684 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:43:56,684 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d21db94d-7777-4d91-ab4d-df05e18c9b01/sv-benchmarks/c/pthread-wmm/safe025_tso.opt.i [2019-12-07 15:43:56,693 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d21db94d-7777-4d91-ab4d-df05e18c9b01/bin/uautomizer/data/b2301fc75/13f536647ef64799883c8b974188c761/FLAG1139c434b [2019-12-07 15:43:57,192 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d21db94d-7777-4d91-ab4d-df05e18c9b01/bin/uautomizer/data/b2301fc75/13f536647ef64799883c8b974188c761 [2019-12-07 15:43:57,194 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:43:57,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:43:57,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:43:57,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:43:57,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:43:57,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:43:57" (1/1) ... [2019-12-07 15:43:57,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47a25c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:43:57, skipping insertion in model container [2019-12-07 15:43:57,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:43:57" (1/1) ... [2019-12-07 15:43:57,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:43:57,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:43:57,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:43:57,451 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:43:57,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:43:57,526 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:43:57,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:43:57 WrapperNode [2019-12-07 15:43:57,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:43:57,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:43:57,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:43:57,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:43:57,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:43:57" (1/1) ... [2019-12-07 15:43:57,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:43:57" (1/1) ... [2019-12-07 15:43:57,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:43:57,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:43:57,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:43:57,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:43:57,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:43:57" (1/1) ... [2019-12-07 15:43:57,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:43:57" (1/1) ... [2019-12-07 15:43:57,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:43:57" (1/1) ... [2019-12-07 15:43:57,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:43:57" (1/1) ... [2019-12-07 15:43:57,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:43:57" (1/1) ... [2019-12-07 15:43:57,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:43:57" (1/1) ... [2019-12-07 15:43:57,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:43:57" (1/1) ... [2019-12-07 15:43:57,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:43:57,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:43:57,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:43:57,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:43:57,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:43:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d21db94d-7777-4d91-ab4d-df05e18c9b01/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 [2019-12-07 15:43:57,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 15:43:57,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-07 15:43:57,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:43:57,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:43:57,613 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-07 15:43:57,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-07 15:43:57,613 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-07 15:43:57,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-07 15:43:57,613 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-07 15:43:57,613 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-07 15:43:57,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-07 15:43:57,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:43:57,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:43:57,614 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-07 15:43:57,786 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:43:57,786 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 15:43:57,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:43:57 BoogieIcfgContainer [2019-12-07 15:43:57,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:43:57,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:43:57,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:43:57,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:43:57,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:43:57" (1/3) ... [2019-12-07 15:43:57,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a2fd6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:43:57, skipping insertion in model container [2019-12-07 15:43:57,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:43:57" (2/3) ... [2019-12-07 15:43:57,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a2fd6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:43:57, skipping insertion in model container [2019-12-07 15:43:57,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:43:57" (3/3) ... [2019-12-07 15:43:57,791 INFO L109 eAbstractionObserver]: Analyzing ICFG safe025_tso.opt.i [2019-12-07 15:43:57,797 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-07 15:43:57,798 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:43:57,802 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:43:57,802 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-07 15:43:57,819 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:43:57,819 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:43:57,819 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:43:57,819 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:43:57,820 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:43:57,820 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:43:57,820 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:43:57,820 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:43:57,820 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:43:57,820 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:43:57,820 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:43:57,820 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:43:57,821 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:43:57,821 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:43:57,821 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:43:57,821 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:43:57,821 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:43:57,821 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 15:43:57,833 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-07 15:43:57,845 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:43:57,845 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:43:57,845 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:43:57,846 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:43:57,846 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:43:57,846 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:43:57,846 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:43:57,846 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:43:57,854 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-07 15:43:57,855 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-07 15:43:57,881 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-07 15:43:57,881 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 15:43:57,885 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-07 15:43:57,887 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-07 15:43:57,896 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-07 15:43:57,897 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 15:43:57,897 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-07 15:43:57,898 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-07 15:43:57,899 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-07 15:43:58,657 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-07 15:43:58,657 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-07 15:43:58,660 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-07 15:43:58,668 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-07 15:43:58,670 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-07 15:43:58,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 15:43:58,675 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:43:58,675 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:43:58,675 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:43:58,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:43:58,679 INFO L82 PathProgramCache]: Analyzing trace with hash -53140901, now seen corresponding path program 1 times [2019-12-07 15:43:58,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:43:58,685 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537393061] [2019-12-07 15:43:58,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:43:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:43:58,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:43:58,856 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537393061] [2019-12-07 15:43:58,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:43:58,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 15:43:58,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566806641] [2019-12-07 15:43:58,862 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:43:58,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:43:58,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:43:58,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:43:58,877 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-07 15:43:58,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:43:58,906 INFO L93 Difference]: Finished difference Result 61 states and 110 transitions. [2019-12-07 15:43:58,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:43:58,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-07 15:43:58,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:43:58,919 INFO L225 Difference]: With dead ends: 61 [2019-12-07 15:43:58,919 INFO L226 Difference]: Without dead ends: 45 [2019-12-07 15:43:58,920 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:43:58,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-12-07 15:43:58,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2019-12-07 15:43:58,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-12-07 15:43:58,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 75 transitions. [2019-12-07 15:43:58,948 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 75 transitions. Word has length 8 [2019-12-07 15:43:58,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:43:58,948 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 75 transitions. [2019-12-07 15:43:58,949 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:43:58,949 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 75 transitions. [2019-12-07 15:43:58,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 15:43:58,950 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:43:58,950 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:43:58,950 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:43:58,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:43:58,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1649012318, now seen corresponding path program 1 times [2019-12-07 15:43:58,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:43:58,950 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624244606] [2019-12-07 15:43:58,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:43:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:43:59,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:43:59,031 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624244606] [2019-12-07 15:43:59,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:43:59,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 15:43:59,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945343467] [2019-12-07 15:43:59,032 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:43:59,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:43:59,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:43:59,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:43:59,033 INFO L87 Difference]: Start difference. First operand 42 states and 75 transitions. Second operand 5 states. [2019-12-07 15:43:59,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:43:59,070 INFO L93 Difference]: Finished difference Result 46 states and 73 transitions. [2019-12-07 15:43:59,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:43:59,070 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-12-07 15:43:59,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:43:59,071 INFO L225 Difference]: With dead ends: 46 [2019-12-07 15:43:59,071 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 15:43:59,072 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-07 15:43:59,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 15:43:59,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-07 15:43:59,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 15:43:59,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2019-12-07 15:43:59,075 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 9 [2019-12-07 15:43:59,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:43:59,076 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2019-12-07 15:43:59,076 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:43:59,076 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2019-12-07 15:43:59,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 15:43:59,076 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:43:59,076 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:43:59,076 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:43:59,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:43:59,077 INFO L82 PathProgramCache]: Analyzing trace with hash 443642582, now seen corresponding path program 1 times [2019-12-07 15:43:59,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:43:59,077 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061901390] [2019-12-07 15:43:59,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:43:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:43:59,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:43:59,127 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061901390] [2019-12-07 15:43:59,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:43:59,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:43:59,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412095741] [2019-12-07 15:43:59,128 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:43:59,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:43:59,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:43:59,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:43:59,128 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2019-12-07 15:43:59,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:43:59,138 INFO L93 Difference]: Finished difference Result 36 states and 54 transitions. [2019-12-07 15:43:59,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:43:59,139 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-07 15:43:59,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:43:59,140 INFO L225 Difference]: With dead ends: 36 [2019-12-07 15:43:59,140 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 15:43:59,140 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:43:59,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 15:43:59,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2019-12-07 15:43:59,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 15:43:59,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 49 transitions. [2019-12-07 15:43:59,144 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 49 transitions. Word has length 10 [2019-12-07 15:43:59,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:43:59,145 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 49 transitions. [2019-12-07 15:43:59,145 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:43:59,145 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2019-12-07 15:43:59,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 15:43:59,145 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:43:59,145 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:43:59,146 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:43:59,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:43:59,146 INFO L82 PathProgramCache]: Analyzing trace with hash 445376226, now seen corresponding path program 1 times [2019-12-07 15:43:59,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:43:59,146 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273344409] [2019-12-07 15:43:59,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:43:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:43:59,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:43:59,206 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273344409] [2019-12-07 15:43:59,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:43:59,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 15:43:59,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939564890] [2019-12-07 15:43:59,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 15:43:59,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:43:59,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 15:43:59,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 15:43:59,208 INFO L87 Difference]: Start difference. First operand 31 states and 49 transitions. Second operand 6 states. [2019-12-07 15:43:59,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:43:59,250 INFO L93 Difference]: Finished difference Result 30 states and 45 transitions. [2019-12-07 15:43:59,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 15:43:59,250 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-07 15:43:59,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:43:59,251 INFO L225 Difference]: With dead ends: 30 [2019-12-07 15:43:59,251 INFO L226 Difference]: Without dead ends: 24 [2019-12-07 15:43:59,251 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-07 15:43:59,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-07 15:43:59,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2019-12-07 15:43:59,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-12-07 15:43:59,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 35 transitions. [2019-12-07 15:43:59,253 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 35 transitions. Word has length 10 [2019-12-07 15:43:59,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:43:59,253 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 35 transitions. [2019-12-07 15:43:59,254 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 15:43:59,254 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 35 transitions. [2019-12-07 15:43:59,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 15:43:59,254 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:43:59,254 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:43:59,254 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:43:59,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:43:59,254 INFO L82 PathProgramCache]: Analyzing trace with hash 868107411, now seen corresponding path program 1 times [2019-12-07 15:43:59,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:43:59,255 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950653479] [2019-12-07 15:43:59,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:43:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:43:59,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:43:59,295 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950653479] [2019-12-07 15:43:59,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:43:59,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 15:43:59,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496106568] [2019-12-07 15:43:59,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:43:59,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:43:59,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:43:59,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:43:59,296 INFO L87 Difference]: Start difference. First operand 23 states and 35 transitions. Second operand 4 states. [2019-12-07 15:43:59,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:43:59,315 INFO L93 Difference]: Finished difference Result 28 states and 39 transitions. [2019-12-07 15:43:59,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:43:59,316 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-07 15:43:59,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:43:59,316 INFO L225 Difference]: With dead ends: 28 [2019-12-07 15:43:59,316 INFO L226 Difference]: Without dead ends: 17 [2019-12-07 15:43:59,316 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:43:59,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-07 15:43:59,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-07 15:43:59,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 15:43:59,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-07 15:43:59,318 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-12-07 15:43:59,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:43:59,318 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-07 15:43:59,318 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:43:59,319 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-07 15:43:59,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 15:43:59,319 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:43:59,319 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:43:59,319 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:43:59,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:43:59,319 INFO L82 PathProgramCache]: Analyzing trace with hash 921846531, now seen corresponding path program 2 times [2019-12-07 15:43:59,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:43:59,320 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501665780] [2019-12-07 15:43:59,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:43:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:43:59,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:43:59,359 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501665780] [2019-12-07 15:43:59,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:43:59,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 15:43:59,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518671589] [2019-12-07 15:43:59,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:43:59,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:43:59,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:43:59,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:43:59,360 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 5 states. [2019-12-07 15:43:59,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:43:59,384 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2019-12-07 15:43:59,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 15:43:59,384 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-07 15:43:59,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:43:59,385 INFO L225 Difference]: With dead ends: 20 [2019-12-07 15:43:59,385 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 15:43:59,385 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-07 15:43:59,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 15:43:59,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 15:43:59,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 15:43:59,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-07 15:43:59,386 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2019-12-07 15:43:59,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:43:59,387 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-07 15:43:59,387 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:43:59,387 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-07 15:43:59,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 15:43:59,387 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:43:59,387 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:43:59,387 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:43:59,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:43:59,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1810889517, now seen corresponding path program 3 times [2019-12-07 15:43:59,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:43:59,388 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273144503] [2019-12-07 15:43:59,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:43:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:43:59,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:43:59,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273144503] [2019-12-07 15:43:59,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:43:59,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 15:43:59,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107452767] [2019-12-07 15:43:59,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:43:59,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:43:59,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:43:59,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:43:59,426 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 5 states. [2019-12-07 15:43:59,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:43:59,435 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-07 15:43:59,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:43:59,435 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-07 15:43:59,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:43:59,435 INFO L225 Difference]: With dead ends: 11 [2019-12-07 15:43:59,435 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 15:43:59,436 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-07 15:43:59,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 15:43:59,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 15:43:59,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 15:43:59,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 15:43:59,436 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-07 15:43:59,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:43:59,436 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:43:59,436 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:43:59,436 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 15:43:59,436 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 15:43:59,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:43:59 BasicIcfg [2019-12-07 15:43:59,439 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:43:59,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:43:59,440 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:43:59,440 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:43:59,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:43:57" (3/4) ... [2019-12-07 15:43:59,443 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 15:43:59,448 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-12-07 15:43:59,448 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-12-07 15:43:59,449 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-12-07 15:43:59,452 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-12-07 15:43:59,453 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 15:43:59,453 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 15:43:59,484 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d21db94d-7777-4d91-ab4d-df05e18c9b01/bin/uautomizer/witness.graphml [2019-12-07 15:43:59,485 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:43:59,487 INFO L168 Benchmark]: Toolchain (without parser) took 2291.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.5 MB). Free memory was 932.6 MB in the beginning and 975.6 MB in the end (delta: -42.9 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2019-12-07 15:43:59,487 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:43:59,488 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.5 MB). Free memory was 932.6 MB in the beginning and 1.0 GB in the end (delta: -110.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-12-07 15:43:59,488 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.45 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:43:59,488 INFO L168 Benchmark]: Boogie Preprocessor took 16.44 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:43:59,489 INFO L168 Benchmark]: RCFGBuilder took 213.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:43:59,489 INFO L168 Benchmark]: TraceAbstraction took 1651.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 982.4 MB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2019-12-07 15:43:59,489 INFO L168 Benchmark]: Witness Printer took 45.19 ms. Allocated memory is still 1.1 GB. Free memory was 982.4 MB in the beginning and 975.6 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:43:59,491 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 331.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.5 MB). Free memory was 932.6 MB in the beginning and 1.0 GB in the end (delta: -110.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.45 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.44 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 213.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1651.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 982.4 MB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 45.19 ms. Allocated memory is still 1.1 GB. Free memory was 982.4 MB in the beginning and 975.6 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.8s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 230 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 12 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 467 CheckedPairsTotal, 44 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 1.5s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 69 SDtfs, 82 SDslu, 58 SDs, 0 SdLazy, 67 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 3771 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...