./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe037_rmo.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/safe037_rmo.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 670b5a25645501a08fec90d42e7c353d05a2efba .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 18:34:16,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 18:34:16,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 18:34:16,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 18:34:16,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 18:34:16,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 18:34:16,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 18:34:16,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 18:34:16,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 18:34:16,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 18:34:16,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 18:34:16,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 18:34:16,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 18:34:16,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 18:34:16,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 18:34:16,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 18:34:16,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 18:34:16,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 18:34:16,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 18:34:16,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 18:34:16,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 18:34:16,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 18:34:16,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 18:34:16,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 18:34:16,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 18:34:16,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 18:34:16,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 18:34:16,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 18:34:16,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 18:34:16,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 18:34:16,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 18:34:16,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 18:34:16,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 18:34:16,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 18:34:16,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 18:34:16,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 18:34:16,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 18:34:16,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 18:34:16,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 18:34:16,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 18:34:16,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 18:34:16,749 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 18:34:16,765 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 18:34:16,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 18:34:16,767 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 18:34:16,767 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 18:34:16,768 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 18:34:16,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 18:34:16,768 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 18:34:16,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 18:34:16,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 18:34:16,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 18:34:16,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 18:34:16,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 18:34:16,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 18:34:16,770 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 18:34:16,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 18:34:16,771 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 18:34:16,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 18:34:16,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 18:34:16,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 18:34:16,772 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 18:34:16,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 18:34:16,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:34:16,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 18:34:16,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 18:34:16,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 18:34:16,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 18:34:16,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 18:34:16,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 18:34:16,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 18:34:16,775 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 -> 670b5a25645501a08fec90d42e7c353d05a2efba [2019-11-28 18:34:17,098 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 18:34:17,112 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 18:34:17,116 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 18:34:17,118 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 18:34:17,118 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 18:34:17,119 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe037_rmo.oepc.i [2019-11-28 18:34:17,184 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cde5f2c5a/b9ac2ded354c4da28cdbb52f005696c7/FLAG1b5921ab8 [2019-11-28 18:34:17,708 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 18:34:17,709 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe037_rmo.oepc.i [2019-11-28 18:34:17,733 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cde5f2c5a/b9ac2ded354c4da28cdbb52f005696c7/FLAG1b5921ab8 [2019-11-28 18:34:17,991 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cde5f2c5a/b9ac2ded354c4da28cdbb52f005696c7 [2019-11-28 18:34:17,995 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 18:34:17,997 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 18:34:17,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 18:34:17,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 18:34:18,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 18:34:18,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:34:17" (1/1) ... [2019-11-28 18:34:18,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29271dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:18, skipping insertion in model container [2019-11-28 18:34:18,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:34:17" (1/1) ... [2019-11-28 18:34:18,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 18:34:18,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 18:34:18,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:34:18,513 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 18:34:18,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:34:18,645 INFO L208 MainTranslator]: Completed translation [2019-11-28 18:34:18,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:18 WrapperNode [2019-11-28 18:34:18,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 18:34:18,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 18:34:18,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 18:34:18,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 18:34:18,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:18" (1/1) ... [2019-11-28 18:34:18,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:18" (1/1) ... [2019-11-28 18:34:18,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 18:34:18,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 18:34:18,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 18:34:18,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 18:34:18,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:18" (1/1) ... [2019-11-28 18:34:18,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:18" (1/1) ... [2019-11-28 18:34:18,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:18" (1/1) ... [2019-11-28 18:34:18,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:18" (1/1) ... [2019-11-28 18:34:18,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:18" (1/1) ... [2019-11-28 18:34:18,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:18" (1/1) ... [2019-11-28 18:34:18,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:18" (1/1) ... [2019-11-28 18:34:18,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 18:34:18,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 18:34:18,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 18:34:18,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 18:34:18,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:18" (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 18:34:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 18:34:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-28 18:34:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 18:34:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 18:34:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-28 18:34:18,806 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-28 18:34:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-28 18:34:18,806 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-28 18:34:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-28 18:34:18,808 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-28 18:34:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-28 18:34:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 18:34:18,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 18:34:18,810 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 18:34:19,168 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 18:34:19,168 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 18:34:19,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:34:19 BoogieIcfgContainer [2019-11-28 18:34:19,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 18:34:19,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 18:34:19,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 18:34:19,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 18:34:19,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:34:17" (1/3) ... [2019-11-28 18:34:19,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f347ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:34:19, skipping insertion in model container [2019-11-28 18:34:19,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:34:18" (2/3) ... [2019-11-28 18:34:19,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f347ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:34:19, skipping insertion in model container [2019-11-28 18:34:19,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:34:19" (3/3) ... [2019-11-28 18:34:19,179 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_rmo.oepc.i [2019-11-28 18:34:19,189 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 18:34:19,189 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 18:34:19,197 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 18:34:19,198 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 18:34:19,230 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:19,230 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:19,231 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:19,231 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:19,234 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:19,234 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:19,235 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:19,235 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:19,235 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:19,235 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:19,236 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:19,236 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:19,237 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:19,237 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:19,237 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:19,237 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:19,238 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:19,238 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:34:19,276 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 18:34:19,298 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 18:34:19,299 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 18:34:19,300 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 18:34:19,300 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 18:34:19,300 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 18:34:19,301 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 18:34:19,301 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 18:34:19,302 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 18:34:19,314 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-11-28 18:34:19,316 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-11-28 18:34:19,357 INFO L134 PetriNetUnfolder]: 1/52 cut-off events. [2019-11-28 18:34:19,358 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:34:19,369 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 18:34:19,371 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-11-28 18:34:19,388 INFO L134 PetriNetUnfolder]: 1/52 cut-off events. [2019-11-28 18:34:19,388 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:34:19,389 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 18:34:19,391 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-11-28 18:34:19,392 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 18:34:20,729 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-11-28 18:34:20,815 INFO L206 etLargeBlockEncoding]: Checked pairs total: 425 [2019-11-28 18:34:20,815 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-11-28 18:34:20,819 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-11-28 18:34:20,832 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-11-28 18:34:20,834 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-11-28 18:34:20,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 18:34:20,841 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:20,842 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:20,843 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:20,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:20,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1086085239, now seen corresponding path program 1 times [2019-11-28 18:34:20,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:20,861 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630879695] [2019-11-28 18:34:20,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:21,252 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 18:34:21,253 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630879695] [2019-11-28 18:34:21,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:21,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:34:21,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998356163] [2019-11-28 18:34:21,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:34:21,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:21,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:34:21,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:34:21,282 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 4 states. [2019-11-28 18:34:21,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:21,369 INFO L93 Difference]: Finished difference Result 58 states and 113 transitions. [2019-11-28 18:34:21,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:34:21,371 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-28 18:34:21,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:21,386 INFO L225 Difference]: With dead ends: 58 [2019-11-28 18:34:21,387 INFO L226 Difference]: Without dead ends: 36 [2019-11-28 18:34:21,388 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 18:34:21,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-28 18:34:21,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-28 18:34:21,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-28 18:34:21,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 68 transitions. [2019-11-28 18:34:21,423 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 68 transitions. Word has length 8 [2019-11-28 18:34:21,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:21,423 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 68 transitions. [2019-11-28 18:34:21,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:34:21,424 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 68 transitions. [2019-11-28 18:34:21,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 18:34:21,424 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:21,425 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:21,425 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:21,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:21,426 INFO L82 PathProgramCache]: Analyzing trace with hash -744608244, now seen corresponding path program 1 times [2019-11-28 18:34:21,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:21,426 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103172544] [2019-11-28 18:34:21,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:21,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:21,565 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 18:34:21,565 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103172544] [2019-11-28 18:34:21,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:21,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:34:21,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689731330] [2019-11-28 18:34:21,572 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:34:21,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:21,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:34:21,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:34:21,574 INFO L87 Difference]: Start difference. First operand 36 states and 68 transitions. Second operand 5 states. [2019-11-28 18:34:21,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:21,644 INFO L93 Difference]: Finished difference Result 37 states and 62 transitions. [2019-11-28 18:34:21,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:34:21,646 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-28 18:34:21,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:21,647 INFO L225 Difference]: With dead ends: 37 [2019-11-28 18:34:21,647 INFO L226 Difference]: Without dead ends: 30 [2019-11-28 18:34:21,649 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 18:34:21,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-28 18:34:21,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-28 18:34:21,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-28 18:34:21,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 50 transitions. [2019-11-28 18:34:21,661 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 50 transitions. Word has length 9 [2019-11-28 18:34:21,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:21,662 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 50 transitions. [2019-11-28 18:34:21,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:34:21,662 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 50 transitions. [2019-11-28 18:34:21,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:34:21,664 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:21,664 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:21,664 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:21,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:21,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1607968112, now seen corresponding path program 1 times [2019-11-28 18:34:21,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:21,666 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499236341] [2019-11-28 18:34:21,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:21,760 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 18:34:21,761 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499236341] [2019-11-28 18:34:21,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:21,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 18:34:21,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493910809] [2019-11-28 18:34:21,762 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 18:34:21,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:21,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 18:34:21,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:34:21,763 INFO L87 Difference]: Start difference. First operand 30 states and 50 transitions. Second operand 6 states. [2019-11-28 18:34:21,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:21,845 INFO L93 Difference]: Finished difference Result 28 states and 44 transitions. [2019-11-28 18:34:21,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 18:34:21,845 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-28 18:34:21,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:21,846 INFO L225 Difference]: With dead ends: 28 [2019-11-28 18:34:21,846 INFO L226 Difference]: Without dead ends: 24 [2019-11-28 18:34:21,847 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-28 18:34:21,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-28 18:34:21,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-28 18:34:21,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-28 18:34:21,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 38 transitions. [2019-11-28 18:34:21,852 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 38 transitions. Word has length 10 [2019-11-28 18:34:21,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:21,852 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 38 transitions. [2019-11-28 18:34:21,852 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 18:34:21,853 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2019-11-28 18:34:21,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:34:21,853 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:21,854 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:21,854 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:21,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:21,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1692653779, now seen corresponding path program 1 times [2019-11-28 18:34:21,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:21,855 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211803251] [2019-11-28 18:34:21,855 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:21,966 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 18:34:21,968 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211803251] [2019-11-28 18:34:21,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:21,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:34:21,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827195014] [2019-11-28 18:34:21,969 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:34:21,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:21,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:34:21,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:34:21,971 INFO L87 Difference]: Start difference. First operand 24 states and 38 transitions. Second operand 4 states. [2019-11-28 18:34:22,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:22,015 INFO L93 Difference]: Finished difference Result 27 states and 40 transitions. [2019-11-28 18:34:22,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:34:22,016 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 18:34:22,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:22,017 INFO L225 Difference]: With dead ends: 27 [2019-11-28 18:34:22,017 INFO L226 Difference]: Without dead ends: 24 [2019-11-28 18:34:22,017 INFO L630 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 [2019-11-28 18:34:22,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-28 18:34:22,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2019-11-28 18:34:22,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-28 18:34:22,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 35 transitions. [2019-11-28 18:34:22,024 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 35 transitions. Word has length 11 [2019-11-28 18:34:22,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:22,024 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 35 transitions. [2019-11-28 18:34:22,024 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:34:22,025 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 35 transitions. [2019-11-28 18:34:22,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:34:22,026 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:22,026 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:22,026 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:22,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:22,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1692855589, now seen corresponding path program 2 times [2019-11-28 18:34:22,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:22,027 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099691415] [2019-11-28 18:34:22,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:22,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:34:22,145 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099691415] [2019-11-28 18:34:22,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:22,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:34:22,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854055186] [2019-11-28 18:34:22,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:34:22,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:22,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:34:22,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:34:22,150 INFO L87 Difference]: Start difference. First operand 23 states and 35 transitions. Second operand 4 states. [2019-11-28 18:34:22,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:22,174 INFO L93 Difference]: Finished difference Result 25 states and 36 transitions. [2019-11-28 18:34:22,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:34:22,174 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 18:34:22,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:22,175 INFO L225 Difference]: With dead ends: 25 [2019-11-28 18:34:22,175 INFO L226 Difference]: Without dead ends: 15 [2019-11-28 18:34:22,175 INFO L630 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 [2019-11-28 18:34:22,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-28 18:34:22,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-28 18:34:22,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-28 18:34:22,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-11-28 18:34:22,178 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2019-11-28 18:34:22,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:22,178 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-11-28 18:34:22,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:34:22,179 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-11-28 18:34:22,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:34:22,179 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:34:22,179 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:34:22,180 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:34:22,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:34:22,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1627540897, now seen corresponding path program 3 times [2019-11-28 18:34:22,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:34:22,181 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572120640] [2019-11-28 18:34:22,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:34:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:34:22,261 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 18:34:22,262 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572120640] [2019-11-28 18:34:22,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:34:22,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:34:22,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050095141] [2019-11-28 18:34:22,263 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:34:22,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:34:22,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:34:22,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:34:22,264 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2019-11-28 18:34:22,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:34:22,306 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-11-28 18:34:22,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:34:22,307 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 18:34:22,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:34:22,307 INFO L225 Difference]: With dead ends: 14 [2019-11-28 18:34:22,307 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 18:34:22,308 INFO L630 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 [2019-11-28 18:34:22,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 18:34:22,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 18:34:22,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 18:34:22,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 18:34:22,309 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-28 18:34:22,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:34:22,310 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 18:34:22,310 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:34:22,310 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 18:34:22,310 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 18:34:22,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:34:22 BasicIcfg [2019-11-28 18:34:22,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 18:34:22,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 18:34:22,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 18:34:22,316 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 18:34:22,316 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:34:19" (3/4) ... [2019-11-28 18:34:22,320 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 18:34:22,328 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-28 18:34:22,328 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-28 18:34:22,329 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-28 18:34:22,334 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-28 18:34:22,335 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 18:34:22,335 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 18:34:22,384 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 18:34:22,384 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 18:34:22,386 INFO L168 Benchmark]: Toolchain (without parser) took 4389.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 949.6 MB in the beginning and 776.4 MB in the end (delta: 173.2 MB). Peak memory consumption was 281.2 MB. Max. memory is 11.5 GB. [2019-11-28 18:34:22,387 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:34:22,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -113.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-28 18:34:22,388 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:34:22,388 INFO L168 Benchmark]: Boogie Preprocessor took 28.95 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:34:22,389 INFO L168 Benchmark]: RCFGBuilder took 439.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2019-11-28 18:34:22,390 INFO L168 Benchmark]: TraceAbstraction took 3143.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 776.4 MB in the end (delta: 261.7 MB). Peak memory consumption was 261.7 MB. Max. memory is 11.5 GB. [2019-11-28 18:34:22,390 INFO L168 Benchmark]: Witness Printer took 69.17 ms. Allocated memory is still 1.1 GB. Free memory is still 776.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:34:22,393 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 648.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -113.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.95 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 439.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3143.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 776.4 MB in the end (delta: 261.7 MB). Peak memory consumption was 261.7 MB. Max. memory is 11.5 GB. * Witness Printer took 69.17 ms. Allocated memory is still 1.1 GB. Free memory is still 776.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 64 ProgramPointsBefore, 22 ProgramPointsAfterwards, 55 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 236 VarBasedMoverChecksPositive, 9 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 10 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 425 CheckedPairsTotal, 45 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: 3.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 67 SDslu, 75 SDs, 0 SdLazy, 65 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 1754 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...