./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe036_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/safe036_power.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b7679b93c90de704915c51ce912c58e2ab0edd1e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 03:08:36,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 03:08:36,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 03:08:36,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 03:08:36,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 03:08:36,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 03:08:36,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 03:08:36,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 03:08:36,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 03:08:36,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 03:08:36,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 03:08:36,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 03:08:36,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 03:08:36,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 03:08:36,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 03:08:36,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 03:08:36,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 03:08:36,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 03:08:36,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 03:08:36,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 03:08:36,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 03:08:36,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 03:08:36,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 03:08:36,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 03:08:36,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 03:08:36,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 03:08:36,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 03:08:36,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 03:08:36,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 03:08:36,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 03:08:36,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 03:08:36,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 03:08:36,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 03:08:36,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 03:08:36,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 03:08:36,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 03:08:36,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 03:08:36,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 03:08:36,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 03:08:36,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 03:08:36,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 03:08:36,772 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 03:08:36,816 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 03:08:36,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 03:08:36,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 03:08:36,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 03:08:36,818 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 03:08:36,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 03:08:36,819 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 03:08:36,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 03:08:36,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 03:08:36,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 03:08:36,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 03:08:36,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 03:08:36,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 03:08:36,822 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 03:08:36,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 03:08:36,822 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 03:08:36,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 03:08:36,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 03:08:36,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 03:08:36,823 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 03:08:36,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 03:08:36,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 03:08:36,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 03:08:36,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 03:08:36,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 03:08:36,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 03:08:36,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 03:08:36,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 03:08:36,824 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 03:08:36,824 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(reach_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 -> b7679b93c90de704915c51ce912c58e2ab0edd1e [2020-10-20 03:08:37,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 03:08:37,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 03:08:37,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 03:08:37,062 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 03:08:37,062 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 03:08:37,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe036_power.oepc.i [2020-10-20 03:08:37,130 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d148298e6/a26d87433aa24e25a325f17588056cbf/FLAG59c0d4131 [2020-10-20 03:08:37,629 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 03:08:37,630 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe036_power.oepc.i [2020-10-20 03:08:37,643 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d148298e6/a26d87433aa24e25a325f17588056cbf/FLAG59c0d4131 [2020-10-20 03:08:37,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d148298e6/a26d87433aa24e25a325f17588056cbf [2020-10-20 03:08:37,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 03:08:37,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 03:08:37,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 03:08:37,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 03:08:37,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 03:08:37,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:08:37" (1/1) ... [2020-10-20 03:08:37,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13f3d1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:37, skipping insertion in model container [2020-10-20 03:08:37,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 03:08:37" (1/1) ... [2020-10-20 03:08:37,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 03:08:38,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 03:08:38,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:08:38,576 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 03:08:38,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 03:08:38,716 INFO L208 MainTranslator]: Completed translation [2020-10-20 03:08:38,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:38 WrapperNode [2020-10-20 03:08:38,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 03:08:38,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 03:08:38,718 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 03:08:38,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 03:08:38,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:38" (1/1) ... [2020-10-20 03:08:38,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:38" (1/1) ... [2020-10-20 03:08:38,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 03:08:38,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 03:08:38,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 03:08:38,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 03:08:38,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:38" (1/1) ... [2020-10-20 03:08:38,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:38" (1/1) ... [2020-10-20 03:08:38,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:38" (1/1) ... [2020-10-20 03:08:38,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:38" (1/1) ... [2020-10-20 03:08:38,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:38" (1/1) ... [2020-10-20 03:08:38,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:38" (1/1) ... [2020-10-20 03:08:38,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:38" (1/1) ... [2020-10-20 03:08:38,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 03:08:38,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 03:08:38,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 03:08:38,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 03:08:38,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:38" (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 [2020-10-20 03:08:38,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 03:08:38,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-20 03:08:38,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 03:08:38,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 03:08:38,865 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-20 03:08:38,865 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-20 03:08:38,865 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-20 03:08:38,865 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-20 03:08:38,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 03:08:38,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-20 03:08:38,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 03:08:38,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 03:08:38,868 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-20 03:08:39,240 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 03:08:39,240 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-20 03:08:39,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:08:39 BoogieIcfgContainer [2020-10-20 03:08:39,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 03:08:39,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 03:08:39,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 03:08:39,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 03:08:39,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 03:08:37" (1/3) ... [2020-10-20 03:08:39,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bafce66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:08:39, skipping insertion in model container [2020-10-20 03:08:39,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 03:08:38" (2/3) ... [2020-10-20 03:08:39,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bafce66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 03:08:39, skipping insertion in model container [2020-10-20 03:08:39,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:08:39" (3/3) ... [2020-10-20 03:08:39,253 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_power.oepc.i [2020-10-20 03:08:39,264 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 03:08:39,264 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 03:08:39,272 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 03:08:39,273 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 03:08:39,300 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,301 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,301 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,303 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,303 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,308 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,308 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,308 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,308 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,319 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,319 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,319 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,319 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 03:08:39,322 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-20 03:08:39,340 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 03:08:39,361 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 03:08:39,361 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 03:08:39,362 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 03:08:39,362 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 03:08:39,362 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 03:08:39,362 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 03:08:39,362 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 03:08:39,362 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 03:08:39,376 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 03:08:39,379 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-20 03:08:39,381 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-20 03:08:39,383 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 140 flow [2020-10-20 03:08:39,446 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2020-10-20 03:08:39,446 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-20 03:08:39,451 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-10-20 03:08:39,454 INFO L117 LiptonReduction]: Number of co-enabled transitions 792 [2020-10-20 03:08:41,015 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-20 03:08:41,129 INFO L132 LiptonReduction]: Checked pairs total: 1418 [2020-10-20 03:08:41,129 INFO L134 LiptonReduction]: Total number of compositions: 63 [2020-10-20 03:08:41,137 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-10-20 03:08:41,169 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-10-20 03:08:41,171 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-10-20 03:08:41,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-20 03:08:41,179 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:41,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-20 03:08:41,181 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:41,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:41,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1338798449, now seen corresponding path program 1 times [2020-10-20 03:08:41,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:41,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671110218] [2020-10-20 03:08:41,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:41,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:41,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671110218] [2020-10-20 03:08:41,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:41,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 03:08:41,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390940017] [2020-10-20 03:08:41,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 03:08:41,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:41,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 03:08:41,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 03:08:41,406 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-10-20 03:08:41,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:41,426 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-10-20 03:08:41,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 03:08:41,428 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-10-20 03:08:41,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:41,444 INFO L225 Difference]: With dead ends: 90 [2020-10-20 03:08:41,444 INFO L226 Difference]: Without dead ends: 74 [2020-10-20 03:08:41,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 03:08:41,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-20 03:08:41,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-20 03:08:41,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-20 03:08:41,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-10-20 03:08:41,492 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-10-20 03:08:41,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:41,493 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-10-20 03:08:41,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 03:08:41,493 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-10-20 03:08:41,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 03:08:41,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:41,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:41,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 03:08:41,495 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:41,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:41,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1446900907, now seen corresponding path program 1 times [2020-10-20 03:08:41,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:41,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638488696] [2020-10-20 03:08:41,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:41,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:41,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638488696] [2020-10-20 03:08:41,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:41,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 03:08:41,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851300170] [2020-10-20 03:08:41,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 03:08:41,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:41,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 03:08:41,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 03:08:41,614 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2020-10-20 03:08:41,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:41,653 INFO L93 Difference]: Finished difference Result 63 states and 112 transitions. [2020-10-20 03:08:41,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:08:41,653 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 03:08:41,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:41,654 INFO L225 Difference]: With dead ends: 63 [2020-10-20 03:08:41,654 INFO L226 Difference]: Without dead ends: 47 [2020-10-20 03:08:41,655 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:08:41,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-20 03:08:41,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-20 03:08:41,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-20 03:08:41,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 79 transitions. [2020-10-20 03:08:41,666 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 79 transitions. Word has length 7 [2020-10-20 03:08:41,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:41,667 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 79 transitions. [2020-10-20 03:08:41,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 03:08:41,667 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 79 transitions. [2020-10-20 03:08:41,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 03:08:41,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:41,669 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:41,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 03:08:41,669 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:41,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:41,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1074461755, now seen corresponding path program 1 times [2020-10-20 03:08:41,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:41,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693424525] [2020-10-20 03:08:41,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:41,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:41,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693424525] [2020-10-20 03:08:41,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:41,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:08:41,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58565057] [2020-10-20 03:08:41,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:08:41,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:41,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:08:41,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:08:41,829 INFO L87 Difference]: Start difference. First operand 47 states and 79 transitions. Second operand 5 states. [2020-10-20 03:08:41,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:41,882 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2020-10-20 03:08:41,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 03:08:41,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-20 03:08:41,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:41,884 INFO L225 Difference]: With dead ends: 36 [2020-10-20 03:08:41,884 INFO L226 Difference]: Without dead ends: 29 [2020-10-20 03:08:41,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 03:08:41,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-20 03:08:41,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-20 03:08:41,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-20 03:08:41,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-10-20 03:08:41,889 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 10 [2020-10-20 03:08:41,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:41,889 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-10-20 03:08:41,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:08:41,890 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-10-20 03:08:41,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 03:08:41,891 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:41,891 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:41,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 03:08:41,891 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:41,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:41,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1774648449, now seen corresponding path program 1 times [2020-10-20 03:08:41,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:41,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568414187] [2020-10-20 03:08:41,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:41,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:41,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:41,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568414187] [2020-10-20 03:08:41,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:41,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:08:41,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602878341] [2020-10-20 03:08:41,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:08:41,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:41,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:08:41,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:08:41,953 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 5 states. [2020-10-20 03:08:41,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:41,984 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions. [2020-10-20 03:08:41,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:08:41,985 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-20 03:08:41,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:41,985 INFO L225 Difference]: With dead ends: 37 [2020-10-20 03:08:41,986 INFO L226 Difference]: Without dead ends: 17 [2020-10-20 03:08:41,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:08:41,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-20 03:08:41,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-10-20 03:08:41,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-20 03:08:41,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2020-10-20 03:08:41,989 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 13 [2020-10-20 03:08:41,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:41,989 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2020-10-20 03:08:41,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:08:41,990 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-10-20 03:08:41,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 03:08:41,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 03:08:41,990 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 03:08:41,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 03:08:41,991 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 03:08:41,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 03:08:41,992 INFO L82 PathProgramCache]: Analyzing trace with hash 290614237, now seen corresponding path program 2 times [2020-10-20 03:08:41,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 03:08:41,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523516589] [2020-10-20 03:08:41,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 03:08:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 03:08:42,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 03:08:42,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523516589] [2020-10-20 03:08:42,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 03:08:42,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 03:08:42,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887579023] [2020-10-20 03:08:42,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 03:08:42,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 03:08:42,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 03:08:42,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 03:08:42,060 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 5 states. [2020-10-20 03:08:42,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 03:08:42,085 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2020-10-20 03:08:42,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 03:08:42,085 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-20 03:08:42,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 03:08:42,085 INFO L225 Difference]: With dead ends: 16 [2020-10-20 03:08:42,085 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 03:08:42,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 03:08:42,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 03:08:42,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 03:08:42,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 03:08:42,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 03:08:42,087 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-20 03:08:42,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 03:08:42,087 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 03:08:42,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 03:08:42,088 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 03:08:42,088 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 03:08:42,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 03:08:42,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 03:08:42 BasicIcfg [2020-10-20 03:08:42,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 03:08:42,093 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 03:08:42,093 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 03:08:42,093 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 03:08:42,094 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 03:08:39" (3/4) ... [2020-10-20 03:08:42,098 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 03:08:42,106 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-10-20 03:08:42,121 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-10-20 03:08:42,127 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-10-20 03:08:42,127 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 03:08:42,127 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:08:42,128 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 03:08:42,176 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 03:08:42,176 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 03:08:42,178 INFO L168 Benchmark]: Toolchain (without parser) took 4260.10 ms. Allocated memory was 34.6 MB in the beginning and 67.6 MB in the end (delta: 33.0 MB). Free memory was 15.6 MB in the beginning and 43.3 MB in the end (delta: -27.8 MB). Peak memory consumption was 38.7 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:42,178 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 33.6 MB. Free memory was 11.5 MB in the beginning and 11.5 MB in the end (delta: 45.8 kB). Peak memory consumption was 45.8 kB. Max. memory is 14.3 GB. [2020-10-20 03:08:42,179 INFO L168 Benchmark]: CACSL2BoogieTranslator took 794.44 ms. Allocated memory was 34.6 MB in the beginning and 45.6 MB in the end (delta: 11.0 MB). Free memory was 14.7 MB in the beginning and 17.1 MB in the end (delta: -2.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:42,180 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.21 ms. Allocated memory is still 45.6 MB. Free memory was 16.9 MB in the beginning and 14.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:42,180 INFO L168 Benchmark]: Boogie Preprocessor took 27.28 ms. Allocated memory is still 45.6 MB. Free memory was 14.8 MB in the beginning and 13.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:42,181 INFO L168 Benchmark]: RCFGBuilder took 447.21 ms. Allocated memory was 45.6 MB in the beginning and 46.7 MB in the end (delta: 1.0 MB). Free memory was 13.3 MB in the beginning and 21.7 MB in the end (delta: -8.3 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:42,182 INFO L168 Benchmark]: TraceAbstraction took 2848.38 ms. Allocated memory was 46.7 MB in the beginning and 61.9 MB in the end (delta: 15.2 MB). Free memory was 21.1 MB in the beginning and 6.6 MB in the end (delta: 14.5 MB). Peak memory consumption was 29.7 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:42,182 INFO L168 Benchmark]: Witness Printer took 83.05 ms. Allocated memory was 61.9 MB in the beginning and 67.6 MB in the end (delta: 5.8 MB). Free memory was 6.6 MB in the beginning and 43.3 MB in the end (delta: -36.8 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 03:08:42,187 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 33.6 MB. Free memory was 11.5 MB in the beginning and 11.5 MB in the end (delta: 45.8 kB). Peak memory consumption was 45.8 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 794.44 ms. Allocated memory was 34.6 MB in the beginning and 45.6 MB in the end (delta: 11.0 MB). Free memory was 14.7 MB in the beginning and 17.1 MB in the end (delta: -2.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 50.21 ms. Allocated memory is still 45.6 MB. Free memory was 16.9 MB in the beginning and 14.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 27.28 ms. Allocated memory is still 45.6 MB. Free memory was 14.8 MB in the beginning and 13.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 447.21 ms. Allocated memory was 45.6 MB in the beginning and 46.7 MB in the end (delta: 1.0 MB). Free memory was 13.3 MB in the beginning and 21.7 MB in the end (delta: -8.3 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * TraceAbstraction took 2848.38 ms. Allocated memory was 46.7 MB in the beginning and 61.9 MB in the end (delta: 15.2 MB). Free memory was 21.1 MB in the beginning and 6.6 MB in the end (delta: 14.5 MB). Peak memory consumption was 29.7 MB. Max. memory is 14.3 GB. * Witness Printer took 83.05 ms. Allocated memory was 61.9 MB in the beginning and 67.6 MB in the end (delta: 5.8 MB). Free memory was 6.6 MB in the beginning and 43.3 MB in the end (delta: -36.8 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 525 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 5 SemBasedMoverChecksPositive, 17 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 36 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 69 PlacesBefore, 23 PlacesAfterwards, 65 TransitionsBefore, 17 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 63 TotalNumberOfCompositions, 1418 MoverChecksTotal - PositiveResult [Line: 17]: 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 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 71 SDtfs, 48 SDslu, 99 SDs, 0 SdLazy, 50 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1126 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...