./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe012_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe012_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0bd56492ce0265462bf8cebecc0a24e28eb1d15f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 18:28:00,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 18:28:00,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 18:28:00,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 18:28:00,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 18:28:00,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 18:28:00,033 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 18:28:00,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 18:28:00,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 18:28:00,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 18:28:00,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 18:28:00,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 18:28:00,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 18:28:00,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 18:28:00,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 18:28:00,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 18:28:00,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 18:28:00,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 18:28:00,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 18:28:00,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 18:28:00,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 18:28:00,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 18:28:00,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 18:28:00,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 18:28:00,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 18:28:00,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 18:28:00,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 18:28:00,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 18:28:00,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 18:28:00,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 18:28:00,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 18:28:00,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 18:28:00,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 18:28:00,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 18:28:00,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 18:28:00,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 18:28:00,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 18:28:00,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 18:28:00,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 18:28:00,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 18:28:00,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 18:28:00,074 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 18:28:00,089 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 18:28:00,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 18:28:00,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 18:28:00,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 18:28:00,091 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 18:28:00,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 18:28:00,092 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 18:28:00,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 18:28:00,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 18:28:00,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 18:28:00,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 18:28:00,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 18:28:00,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 18:28:00,094 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 18:28:00,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 18:28:00,094 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 18:28:00,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 18:28:00,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 18:28:00,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 18:28:00,095 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 18:28:00,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 18:28:00,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:28:00,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 18:28:00,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 18:28:00,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 18:28:00,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 18:28:00,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 18:28:00,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 18:28:00,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 18:28:00,098 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bd56492ce0265462bf8cebecc0a24e28eb1d15f [2019-11-28 18:28:00,438 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 18:28:00,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 18:28:00,456 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 18:28:00,458 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 18:28:00,458 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 18:28:00,459 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe012_tso.oepc.i [2019-11-28 18:28:00,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee6a10197/d88cd18bdca94a1e9e3991df5039318b/FLAGc86bade2f [2019-11-28 18:28:01,120 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 18:28:01,121 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe012_tso.oepc.i [2019-11-28 18:28:01,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee6a10197/d88cd18bdca94a1e9e3991df5039318b/FLAGc86bade2f [2019-11-28 18:28:01,351 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee6a10197/d88cd18bdca94a1e9e3991df5039318b [2019-11-28 18:28:01,356 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 18:28:01,358 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 18:28:01,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 18:28:01,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 18:28:01,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 18:28:01,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:28:01" (1/1) ... [2019-11-28 18:28:01,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c7f4e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:01, skipping insertion in model container [2019-11-28 18:28:01,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:28:01" (1/1) ... [2019-11-28 18:28:01,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 18:28:01,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 18:28:01,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:28:01,936 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 18:28:02,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:28:02,075 INFO L208 MainTranslator]: Completed translation [2019-11-28 18:28:02,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:02 WrapperNode [2019-11-28 18:28:02,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 18:28:02,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 18:28:02,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 18:28:02,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 18:28:02,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:02" (1/1) ... [2019-11-28 18:28:02,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:02" (1/1) ... [2019-11-28 18:28:02,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 18:28:02,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 18:28:02,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 18:28:02,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 18:28:02,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:02" (1/1) ... [2019-11-28 18:28:02,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:02" (1/1) ... [2019-11-28 18:28:02,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:02" (1/1) ... [2019-11-28 18:28:02,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:02" (1/1) ... [2019-11-28 18:28:02,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:02" (1/1) ... [2019-11-28 18:28:02,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:02" (1/1) ... [2019-11-28 18:28:02,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:02" (1/1) ... [2019-11-28 18:28:02,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 18:28:02,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 18:28:02,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 18:28:02,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 18:28:02,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:28:02,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 18:28:02,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-28 18:28:02,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 18:28:02,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 18:28:02,221 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-28 18:28:02,221 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-28 18:28:02,221 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-28 18:28:02,221 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-28 18:28:02,221 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-28 18:28:02,222 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-28 18:28:02,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-28 18:28:02,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 18:28:02,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 18:28:02,224 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-28 18:28:02,560 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 18:28:02,560 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 18:28:02,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:28:02 BoogieIcfgContainer [2019-11-28 18:28:02,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 18:28:02,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 18:28:02,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 18:28:02,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 18:28:02,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:28:01" (1/3) ... [2019-11-28 18:28:02,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf4be8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:28:02, skipping insertion in model container [2019-11-28 18:28:02,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:02" (2/3) ... [2019-11-28 18:28:02,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf4be8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:28:02, skipping insertion in model container [2019-11-28 18:28:02,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:28:02" (3/3) ... [2019-11-28 18:28:02,571 INFO L109 eAbstractionObserver]: Analyzing ICFG safe012_tso.oepc.i [2019-11-28 18:28:02,581 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 18:28:02,581 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 18:28:02,589 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 18:28:02,590 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 18:28:02,619 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:02,619 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:02,620 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:02,622 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:02,623 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:02,625 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:02,625 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:02,626 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:02,626 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:02,626 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:02,626 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:02,628 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:02,628 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:02,628 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:02,631 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:02,631 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:02,631 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:02,632 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:02,670 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 18:28:02,691 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 18:28:02,691 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 18:28:02,691 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 18:28:02,692 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 18:28:02,692 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 18:28:02,692 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 18:28:02,692 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 18:28:02,692 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 18:28:02,704 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-11-28 18:28:02,706 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-11-28 18:28:02,746 INFO L134 PetriNetUnfolder]: 1/52 cut-off events. [2019-11-28 18:28:02,747 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:28:02,755 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/59 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:28:02,759 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-11-28 18:28:02,781 INFO L134 PetriNetUnfolder]: 1/52 cut-off events. [2019-11-28 18:28:02,782 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:28:02,783 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/59 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:28:02,786 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-11-28 18:28:02,787 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 18:28:04,126 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-11-28 18:28:04,272 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-11-28 18:28:04,273 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-11-28 18:28:04,277 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-11-28 18:28:04,290 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-11-28 18:28:04,293 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-11-28 18:28:04,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 18:28:04,301 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:28:04,302 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:28:04,303 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:28:04,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:28:04,310 INFO L82 PathProgramCache]: Analyzing trace with hash 2019279745, now seen corresponding path program 1 times [2019-11-28 18:28:04,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:28:04,326 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42070206] [2019-11-28 18:28:04,326 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:28:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:28:04,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:28:04,713 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42070206] [2019-11-28 18:28:04,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:28:04,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 18:28:04,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945517941] [2019-11-28 18:28:04,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 18:28:04,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:28:04,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 18:28:04,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 18:28:04,739 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-11-28 18:28:04,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:28:04,771 INFO L93 Difference]: Finished difference Result 50 states and 96 transitions. [2019-11-28 18:28:04,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 18:28:04,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-28 18:28:04,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:28:04,785 INFO L225 Difference]: With dead ends: 50 [2019-11-28 18:28:04,785 INFO L226 Difference]: Without dead ends: 36 [2019-11-28 18:28:04,786 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 [2019-11-28 18:28:04,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-28 18:28:04,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-28 18:28:04,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-28 18:28:04,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-11-28 18:28:04,824 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-11-28 18:28:04,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:28:04,826 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-11-28 18:28:04,826 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 18:28:04,826 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-11-28 18:28:04,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 18:28:04,827 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:28:04,828 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:28:04,828 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:28:04,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:28:04,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1392638966, now seen corresponding path program 1 times [2019-11-28 18:28:04,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:28:04,829 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341983192] [2019-11-28 18:28:04,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:28:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:28:04,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:28:04,914 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341983192] [2019-11-28 18:28:04,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:28:04,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:28:04,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880867252] [2019-11-28 18:28:04,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:28:04,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:28:04,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:28:04,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:28:04,918 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 4 states. [2019-11-28 18:28:04,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:28:04,954 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-11-28 18:28:04,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 18:28:04,955 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-28 18:28:04,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:28:04,956 INFO L225 Difference]: With dead ends: 34 [2019-11-28 18:28:04,956 INFO L226 Difference]: Without dead ends: 34 [2019-11-28 18:28:04,957 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:28:04,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-28 18:28:04,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-28 18:28:04,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-28 18:28:04,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-11-28 18:28:04,963 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-11-28 18:28:04,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:28:04,963 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-11-28 18:28:04,964 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:28:04,964 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-11-28 18:28:04,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 18:28:04,964 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:28:04,965 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:28:04,965 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:28:04,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:28:04,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1826755775, now seen corresponding path program 1 times [2019-11-28 18:28:04,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:28:04,966 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076762938] [2019-11-28 18:28:04,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:28:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:28:05,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:28:05,113 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076762938] [2019-11-28 18:28:05,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:28:05,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:28:05,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155663058] [2019-11-28 18:28:05,115 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:28:05,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:28:05,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:28:05,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:28:05,116 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 5 states. [2019-11-28 18:28:05,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:28:05,191 INFO L93 Difference]: Finished difference Result 37 states and 64 transitions. [2019-11-28 18:28:05,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:28:05,192 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-28 18:28:05,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:28:05,193 INFO L225 Difference]: With dead ends: 37 [2019-11-28 18:28:05,193 INFO L226 Difference]: Without dead ends: 29 [2019-11-28 18:28:05,193 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 [2019-11-28 18:28:05,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-28 18:28:05,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-28 18:28:05,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-28 18:28:05,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 48 transitions. [2019-11-28 18:28:05,198 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 48 transitions. Word has length 9 [2019-11-28 18:28:05,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:28:05,198 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 48 transitions. [2019-11-28 18:28:05,199 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:28:05,199 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2019-11-28 18:28:05,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:28:05,199 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:28:05,199 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:28:05,200 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:28:05,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:28:05,200 INFO L82 PathProgramCache]: Analyzing trace with hash 222216556, now seen corresponding path program 1 times [2019-11-28 18:28:05,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:28:05,201 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000215604] [2019-11-28 18:28:05,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:28:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:28:05,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:28:05,254 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000215604] [2019-11-28 18:28:05,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:28:05,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:28:05,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184815307] [2019-11-28 18:28:05,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:28:05,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:28:05,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:28:05,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:28:05,257 INFO L87 Difference]: Start difference. First operand 29 states and 48 transitions. Second operand 4 states. [2019-11-28 18:28:05,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:28:05,306 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2019-11-28 18:28:05,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:28:05,308 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-28 18:28:05,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:28:05,308 INFO L225 Difference]: With dead ends: 32 [2019-11-28 18:28:05,309 INFO L226 Difference]: Without dead ends: 25 [2019-11-28 18:28:05,309 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:28:05,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-28 18:28:05,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-28 18:28:05,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-28 18:28:05,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 39 transitions. [2019-11-28 18:28:05,315 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 39 transitions. Word has length 10 [2019-11-28 18:28:05,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:28:05,315 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 39 transitions. [2019-11-28 18:28:05,315 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:28:05,318 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 39 transitions. [2019-11-28 18:28:05,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:28:05,318 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:28:05,319 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:28:05,319 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:28:05,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:28:05,319 INFO L82 PathProgramCache]: Analyzing trace with hash -794534279, now seen corresponding path program 1 times [2019-11-28 18:28:05,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:28:05,320 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258777638] [2019-11-28 18:28:05,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:28:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:28:05,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:28:05,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258777638] [2019-11-28 18:28:05,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:28:05,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 18:28:05,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994692683] [2019-11-28 18:28:05,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 18:28:05,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:28:05,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 18:28:05,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 18:28:05,364 INFO L87 Difference]: Start difference. First operand 25 states and 39 transitions. Second operand 3 states. [2019-11-28 18:28:05,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:28:05,370 INFO L93 Difference]: Finished difference Result 24 states and 37 transitions. [2019-11-28 18:28:05,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 18:28:05,371 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-28 18:28:05,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:28:05,372 INFO L225 Difference]: With dead ends: 24 [2019-11-28 18:28:05,372 INFO L226 Difference]: Without dead ends: 24 [2019-11-28 18:28:05,372 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 [2019-11-28 18:28:05,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-28 18:28:05,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-28 18:28:05,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-28 18:28:05,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 37 transitions. [2019-11-28 18:28:05,376 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 37 transitions. Word has length 10 [2019-11-28 18:28:05,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:28:05,377 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 37 transitions. [2019-11-28 18:28:05,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 18:28:05,377 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 37 transitions. [2019-11-28 18:28:05,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:28:05,378 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:28:05,378 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:28:05,378 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:28:05,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:28:05,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1700901458, now seen corresponding path program 1 times [2019-11-28 18:28:05,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:28:05,379 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370073095] [2019-11-28 18:28:05,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:28:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:28:05,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:28:05,428 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370073095] [2019-11-28 18:28:05,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:28:05,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:28:05,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458294555] [2019-11-28 18:28:05,429 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:28:05,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:28:05,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:28:05,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:28:05,430 INFO L87 Difference]: Start difference. First operand 24 states and 37 transitions. Second operand 4 states. [2019-11-28 18:28:05,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:28:05,450 INFO L93 Difference]: Finished difference Result 26 states and 38 transitions. [2019-11-28 18:28:05,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:28:05,450 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 18:28:05,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:28:05,451 INFO L225 Difference]: With dead ends: 26 [2019-11-28 18:28:05,451 INFO L226 Difference]: Without dead ends: 15 [2019-11-28 18:28:05,452 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:28:05,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-28 18:28:05,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-28 18:28:05,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-28 18:28:05,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-11-28 18:28:05,454 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2019-11-28 18:28:05,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:28:05,455 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-11-28 18:28:05,455 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:28:05,455 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-11-28 18:28:05,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:28:05,456 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:28:05,456 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:28:05,456 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:28:05,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:28:05,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1139321736, now seen corresponding path program 2 times [2019-11-28 18:28:05,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:28:05,457 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698710884] [2019-11-28 18:28:05,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:28:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:28:05,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:28:05,531 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698710884] [2019-11-28 18:28:05,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:28:05,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:28:05,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105318376] [2019-11-28 18:28:05,532 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:28:05,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:28:05,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:28:05,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:28:05,534 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2019-11-28 18:28:05,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:28:05,559 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-11-28 18:28:05,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:28:05,560 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 18:28:05,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:28:05,560 INFO L225 Difference]: With dead ends: 14 [2019-11-28 18:28:05,560 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 18:28:05,561 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 [2019-11-28 18:28:05,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 18:28:05,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 18:28:05,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 18:28:05,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 18:28:05,563 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-28 18:28:05,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:28:05,563 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 18:28:05,563 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:28:05,564 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 18:28:05,564 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 18:28:05,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:28:05 BasicIcfg [2019-11-28 18:28:05,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 18:28:05,570 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 18:28:05,570 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 18:28:05,570 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 18:28:05,571 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:28:02" (3/4) ... [2019-11-28 18:28:05,577 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 18:28:05,585 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-28 18:28:05,585 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-28 18:28:05,585 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-28 18:28:05,595 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-28 18:28:05,596 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 18:28:05,596 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 18:28:05,663 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 18:28:05,663 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 18:28:05,666 INFO L168 Benchmark]: Toolchain (without parser) took 4307.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 957.7 MB in the beginning and 802.2 MB in the end (delta: 155.5 MB). Peak memory consumption was 281.8 MB. Max. memory is 11.5 GB. [2019-11-28 18:28:05,673 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:28:05,675 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -142.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-28 18:28:05,678 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.45 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. [2019-11-28 18:28:05,680 INFO L168 Benchmark]: Boogie Preprocessor took 27.56 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. [2019-11-28 18:28:05,681 INFO L168 Benchmark]: RCFGBuilder took 408.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-11-28 18:28:05,681 INFO L168 Benchmark]: TraceAbstraction took 3006.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 806.7 MB in the end (delta: 262.9 MB). Peak memory consumption was 262.9 MB. Max. memory is 11.5 GB. [2019-11-28 18:28:05,682 INFO L168 Benchmark]: Witness Printer took 93.47 ms. Allocated memory is still 1.2 GB. Free memory was 806.7 MB in the beginning and 802.2 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 11.5 GB. [2019-11-28 18:28:05,686 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 714.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -142.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.45 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. * Boogie Preprocessor took 27.56 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 408.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3006.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 806.7 MB in the end (delta: 262.9 MB). Peak memory consumption was 262.9 MB. Max. memory is 11.5 GB. * Witness Printer took 93.47 ms. Allocated memory is still 1.2 GB. Free memory was 806.7 MB in the beginning and 802.2 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 64 ProgramPointsBefore, 21 ProgramPointsAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 228 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 467 CheckedPairsTotal, 47 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, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 72 SDtfs, 61 SDslu, 45 SDs, 0 SdLazy, 39 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 2731 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...