./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/triangular-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/triangular-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5f3104f8866991317081f2a037cd413a142d8b2f .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:16:59,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:16:59,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:16:59,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:16:59,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:16:59,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:16:59,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:16:59,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:16:59,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:16:59,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:16:59,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:16:59,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:16:59,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:16:59,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:16:59,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:16:59,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:16:59,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:16:59,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:16:59,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:16:59,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:16:59,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:16:59,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:16:59,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:16:59,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:16:59,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:16:59,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:16:59,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:16:59,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:16:59,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:16:59,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:16:59,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:16:59,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:16:59,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:16:59,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:16:59,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:16:59,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:16:59,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:16:59,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:16:59,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:16:59,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:16:59,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:16:59,749 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:16:59,762 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:16:59,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:16:59,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:16:59,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:16:59,768 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:16:59,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:16:59,768 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:16:59,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:16:59,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:16:59,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:16:59,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:16:59,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:16:59,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:16:59,770 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:16:59,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:16:59,770 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:16:59,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:16:59,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:16:59,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:16:59,771 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:16:59,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:16:59,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:16:59,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:16:59,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:16:59,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:16:59,773 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:16:59,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:16:59,773 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:16:59,773 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f3104f8866991317081f2a037cd413a142d8b2f [2019-11-16 00:16:59,798 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:16:59,808 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:16:59,811 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:16:59,812 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:16:59,813 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:16:59,813 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/../../sv-benchmarks/c/pthread/triangular-2.i [2019-11-16 00:16:59,863 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/data/c2c886b17/9895784734454975be362c29afb4c2d7/FLAGea05c5550 [2019-11-16 00:17:00,270 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:17:00,271 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/sv-benchmarks/c/pthread/triangular-2.i [2019-11-16 00:17:00,286 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/data/c2c886b17/9895784734454975be362c29afb4c2d7/FLAGea05c5550 [2019-11-16 00:17:00,596 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/data/c2c886b17/9895784734454975be362c29afb4c2d7 [2019-11-16 00:17:00,598 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:17:00,599 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:17:00,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:17:00,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:17:00,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:17:00,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:17:00" (1/1) ... [2019-11-16 00:17:00,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d3c0c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:00, skipping insertion in model container [2019-11-16 00:17:00,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:17:00" (1/1) ... [2019-11-16 00:17:00,610 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:17:00,669 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:17:01,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:17:01,121 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:17:01,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:17:01,221 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:17:01,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01 WrapperNode [2019-11-16 00:17:01,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:17:01,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:17:01,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:17:01,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:17:01,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:17:01,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:17:01,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:17:01,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:17:01,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... [2019-11-16 00:17:01,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:17:01,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:17:01,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:17:01,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:17:01,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:17:01,354 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2019-11-16 00:17:01,354 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2019-11-16 00:17:01,354 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2019-11-16 00:17:01,354 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2019-11-16 00:17:01,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:17:01,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-16 00:17:01,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:17:01,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:17:01,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-16 00:17:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:17:01,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:17:01,357 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-16 00:17:01,672 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:17:01,673 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-16 00:17:01,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:17:01 BoogieIcfgContainer [2019-11-16 00:17:01,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:17:01,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:17:01,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:17:01,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:17:01,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:17:00" (1/3) ... [2019-11-16 00:17:01,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380b96b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:17:01, skipping insertion in model container [2019-11-16 00:17:01,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:01" (2/3) ... [2019-11-16 00:17:01,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380b96b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:17:01, skipping insertion in model container [2019-11-16 00:17:01,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:17:01" (3/3) ... [2019-11-16 00:17:01,680 INFO L109 eAbstractionObserver]: Analyzing ICFG triangular-2.i [2019-11-16 00:17:01,711 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,712 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,712 WARN L315 ript$VariableManager]: TermVariabe Thread1_t1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,712 WARN L315 ript$VariableManager]: TermVariabe Thread1_t1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,712 WARN L315 ript$VariableManager]: TermVariabe Thread1_t1_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,713 WARN L315 ript$VariableManager]: TermVariabe Thread1_t1_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,713 WARN L315 ript$VariableManager]: TermVariabe Thread1_t1_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,713 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,713 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,713 WARN L315 ript$VariableManager]: TermVariabe Thread1_t1_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,713 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,714 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,714 WARN L315 ript$VariableManager]: TermVariabe Thread1_t1_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,714 WARN L315 ript$VariableManager]: TermVariabe |Thread1_t1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,714 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,715 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,715 WARN L315 ript$VariableManager]: TermVariabe Thread0_t2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,715 WARN L315 ript$VariableManager]: TermVariabe Thread0_t2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,715 WARN L315 ript$VariableManager]: TermVariabe Thread0_t2_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,715 WARN L315 ript$VariableManager]: TermVariabe Thread0_t2_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,716 WARN L315 ript$VariableManager]: TermVariabe Thread0_t2_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,716 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,716 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,716 WARN L315 ript$VariableManager]: TermVariabe Thread0_t2_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,716 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,717 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,717 WARN L315 ript$VariableManager]: TermVariabe Thread0_t2_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,717 WARN L315 ript$VariableManager]: TermVariabe |Thread0_t2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:17:01,733 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-16 00:17:01,734 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:17:01,740 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:17:01,749 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:17:01,766 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:17:01,766 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:17:01,767 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:17:01,767 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:17:01,767 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:17:01,767 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:17:01,767 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:17:01,767 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:17:01,775 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 48 transitions [2019-11-16 00:17:01,859 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1012 states. [2019-11-16 00:17:01,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states. [2019-11-16 00:17:01,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-16 00:17:01,871 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:17:01,872 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:17:01,875 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:17:01,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:17:01,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1918718107, now seen corresponding path program 1 times [2019-11-16 00:17:01,888 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:17:01,888 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320032665] [2019-11-16 00:17:01,889 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:01,889 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:01,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:17:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:17:02,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:02,224 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320032665] [2019-11-16 00:17:02,225 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:17:02,225 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-16 00:17:02,226 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153918329] [2019-11-16 00:17:02,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-16 00:17:02,230 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:17:02,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-16 00:17:02,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:17:02,246 INFO L87 Difference]: Start difference. First operand 1012 states. Second operand 5 states. [2019-11-16 00:17:02,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:17:02,406 INFO L93 Difference]: Finished difference Result 2036 states and 5889 transitions. [2019-11-16 00:17:02,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-16 00:17:02,408 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-11-16 00:17:02,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:17:02,427 INFO L225 Difference]: With dead ends: 2036 [2019-11-16 00:17:02,428 INFO L226 Difference]: Without dead ends: 515 [2019-11-16 00:17:02,429 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-16 00:17:02,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2019-11-16 00:17:02,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 319. [2019-11-16 00:17:02,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2019-11-16 00:17:02,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 814 transitions. [2019-11-16 00:17:02,497 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 814 transitions. Word has length 19 [2019-11-16 00:17:02,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:17:02,498 INFO L462 AbstractCegarLoop]: Abstraction has 319 states and 814 transitions. [2019-11-16 00:17:02,498 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-16 00:17:02,498 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 814 transitions. [2019-11-16 00:17:02,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-16 00:17:02,499 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:17:02,500 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:17:02,500 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:17:02,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:17:02,500 INFO L82 PathProgramCache]: Analyzing trace with hash -509840719, now seen corresponding path program 1 times [2019-11-16 00:17:02,500 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:17:02,501 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746550877] [2019-11-16 00:17:02,501 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:02,501 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:02,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:17:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:17:02,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:02,629 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746550877] [2019-11-16 00:17:02,629 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:17:02,630 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-16 00:17:02,630 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330789378] [2019-11-16 00:17:02,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-16 00:17:02,631 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:17:02,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-16 00:17:02,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:17:02,632 INFO L87 Difference]: Start difference. First operand 319 states and 814 transitions. Second operand 5 states. [2019-11-16 00:17:02,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:17:02,745 INFO L93 Difference]: Finished difference Result 518 states and 1261 transitions. [2019-11-16 00:17:02,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-16 00:17:02,745 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-16 00:17:02,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:17:02,749 INFO L225 Difference]: With dead ends: 518 [2019-11-16 00:17:02,749 INFO L226 Difference]: Without dead ends: 309 [2019-11-16 00:17:02,750 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-16 00:17:02,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2019-11-16 00:17:02,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 299. [2019-11-16 00:17:02,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2019-11-16 00:17:02,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 732 transitions. [2019-11-16 00:17:02,770 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 732 transitions. Word has length 22 [2019-11-16 00:17:02,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:17:02,771 INFO L462 AbstractCegarLoop]: Abstraction has 299 states and 732 transitions. [2019-11-16 00:17:02,771 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-16 00:17:02,771 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 732 transitions. [2019-11-16 00:17:02,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-16 00:17:02,772 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:17:02,773 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:17:02,773 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:17:02,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:17:02,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1020173103, now seen corresponding path program 1 times [2019-11-16 00:17:02,773 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:17:02,774 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114368164] [2019-11-16 00:17:02,774 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:02,774 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:02,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:17:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:17:02,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:02,895 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114368164] [2019-11-16 00:17:02,896 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:17:02,896 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-16 00:17:02,896 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946115839] [2019-11-16 00:17:02,896 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-16 00:17:02,897 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:17:02,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-16 00:17:02,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:17:02,897 INFO L87 Difference]: Start difference. First operand 299 states and 732 transitions. Second operand 6 states. [2019-11-16 00:17:03,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:17:03,007 INFO L93 Difference]: Finished difference Result 456 states and 1095 transitions. [2019-11-16 00:17:03,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-16 00:17:03,008 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-11-16 00:17:03,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:17:03,011 INFO L225 Difference]: With dead ends: 456 [2019-11-16 00:17:03,011 INFO L226 Difference]: Without dead ends: 319 [2019-11-16 00:17:03,011 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-11-16 00:17:03,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2019-11-16 00:17:03,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2019-11-16 00:17:03,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2019-11-16 00:17:03,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 772 transitions. [2019-11-16 00:17:03,025 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 772 transitions. Word has length 25 [2019-11-16 00:17:03,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:17:03,025 INFO L462 AbstractCegarLoop]: Abstraction has 319 states and 772 transitions. [2019-11-16 00:17:03,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-16 00:17:03,026 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 772 transitions. [2019-11-16 00:17:03,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-16 00:17:03,027 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:17:03,028 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:17:03,028 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:17:03,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:17:03,028 INFO L82 PathProgramCache]: Analyzing trace with hash -2074375186, now seen corresponding path program 1 times [2019-11-16 00:17:03,028 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:17:03,028 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722773485] [2019-11-16 00:17:03,029 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:03,029 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:03,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:17:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:17:03,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:03,167 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722773485] [2019-11-16 00:17:03,167 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472535137] [2019-11-16 00:17:03,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:17:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:17:03,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-16 00:17:03,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:17:03,286 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:17:03,288 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:17:03,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:03,294 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:17:03,294 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2019-11-16 00:17:03,295 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245925514] [2019-11-16 00:17:03,295 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-16 00:17:03,295 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:17:03,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-16 00:17:03,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-16 00:17:03,296 INFO L87 Difference]: Start difference. First operand 319 states and 772 transitions. Second operand 8 states. [2019-11-16 00:17:03,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:17:03,442 INFO L93 Difference]: Finished difference Result 564 states and 1360 transitions. [2019-11-16 00:17:03,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-16 00:17:03,443 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2019-11-16 00:17:03,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:17:03,446 INFO L225 Difference]: With dead ends: 564 [2019-11-16 00:17:03,446 INFO L226 Difference]: Without dead ends: 375 [2019-11-16 00:17:03,447 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2019-11-16 00:17:03,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2019-11-16 00:17:03,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 363. [2019-11-16 00:17:03,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2019-11-16 00:17:03,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 864 transitions. [2019-11-16 00:17:03,461 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 864 transitions. Word has length 29 [2019-11-16 00:17:03,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:17:03,462 INFO L462 AbstractCegarLoop]: Abstraction has 363 states and 864 transitions. [2019-11-16 00:17:03,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-16 00:17:03,462 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 864 transitions. [2019-11-16 00:17:03,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-16 00:17:03,464 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:17:03,464 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:17:03,668 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:17:03,669 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:17:03,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:17:03,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1553903636, now seen corresponding path program 1 times [2019-11-16 00:17:03,669 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:17:03,670 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619674190] [2019-11-16 00:17:03,670 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:03,670 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:03,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:17:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:17:03,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:03,760 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619674190] [2019-11-16 00:17:03,760 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881134585] [2019-11-16 00:17:03,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:17:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:17:03,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-16 00:17:03,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:17:03,849 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:17:03,850 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:17:03,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:17:03,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:03,856 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:17:03,856 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2019-11-16 00:17:03,856 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781788503] [2019-11-16 00:17:03,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-16 00:17:03,857 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:17:03,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-16 00:17:03,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-16 00:17:03,858 INFO L87 Difference]: Start difference. First operand 363 states and 864 transitions. Second operand 8 states. [2019-11-16 00:17:03,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:17:03,985 INFO L93 Difference]: Finished difference Result 648 states and 1528 transitions. [2019-11-16 00:17:03,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-16 00:17:03,991 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2019-11-16 00:17:03,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:17:03,994 INFO L225 Difference]: With dead ends: 648 [2019-11-16 00:17:03,994 INFO L226 Difference]: Without dead ends: 459 [2019-11-16 00:17:03,995 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-16 00:17:03,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2019-11-16 00:17:04,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 391. [2019-11-16 00:17:04,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2019-11-16 00:17:04,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 916 transitions. [2019-11-16 00:17:04,008 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 916 transitions. Word has length 29 [2019-11-16 00:17:04,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:17:04,009 INFO L462 AbstractCegarLoop]: Abstraction has 391 states and 916 transitions. [2019-11-16 00:17:04,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-16 00:17:04,009 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 916 transitions. [2019-11-16 00:17:04,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-16 00:17:04,013 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:17:04,013 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:17:04,216 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:17:04,216 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:17:04,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:17:04,217 INFO L82 PathProgramCache]: Analyzing trace with hash 762173390, now seen corresponding path program 1 times [2019-11-16 00:17:04,217 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:17:04,217 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186118495] [2019-11-16 00:17:04,217 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:04,217 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:04,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:17:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:17:04,383 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:04,383 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186118495] [2019-11-16 00:17:04,384 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944597385] [2019-11-16 00:17:04,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:17:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:17:04,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-16 00:17:04,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:17:04,480 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:17:04,481 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:17:04,486 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:04,486 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:17:04,487 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2019-11-16 00:17:04,487 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494666968] [2019-11-16 00:17:04,487 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-16 00:17:04,487 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:17:04,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-16 00:17:04,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-16 00:17:04,488 INFO L87 Difference]: Start difference. First operand 391 states and 916 transitions. Second operand 10 states. [2019-11-16 00:17:04,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:17:04,750 INFO L93 Difference]: Finished difference Result 774 states and 1829 transitions. [2019-11-16 00:17:04,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-16 00:17:04,751 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2019-11-16 00:17:04,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:17:04,754 INFO L225 Difference]: With dead ends: 774 [2019-11-16 00:17:04,754 INFO L226 Difference]: Without dead ends: 455 [2019-11-16 00:17:04,754 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2019-11-16 00:17:04,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2019-11-16 00:17:04,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 427. [2019-11-16 00:17:04,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2019-11-16 00:17:04,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 992 transitions. [2019-11-16 00:17:04,768 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 992 transitions. Word has length 37 [2019-11-16 00:17:04,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:17:04,768 INFO L462 AbstractCegarLoop]: Abstraction has 427 states and 992 transitions. [2019-11-16 00:17:04,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-16 00:17:04,768 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 992 transitions. [2019-11-16 00:17:04,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-16 00:17:04,769 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:17:04,769 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:17:04,973 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:17:04,974 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:17:04,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:17:04,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1927296628, now seen corresponding path program 2 times [2019-11-16 00:17:04,974 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:17:04,974 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592535270] [2019-11-16 00:17:04,975 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:04,975 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:04,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:17:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:17:05,110 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-16 00:17:05,111 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592535270] [2019-11-16 00:17:05,111 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016549520] [2019-11-16 00:17:05,111 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:17:05,177 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-16 00:17:05,177 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-16 00:17:05,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-16 00:17:05,182 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:17:05,206 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:17:05,207 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:17:05,211 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-16 00:17:05,211 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:17:05,211 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2019-11-16 00:17:05,211 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97420191] [2019-11-16 00:17:05,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-16 00:17:05,212 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:17:05,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-16 00:17:05,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-16 00:17:05,212 INFO L87 Difference]: Start difference. First operand 427 states and 992 transitions. Second operand 9 states. [2019-11-16 00:17:05,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:17:05,368 INFO L93 Difference]: Finished difference Result 684 states and 1600 transitions. [2019-11-16 00:17:05,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-16 00:17:05,368 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2019-11-16 00:17:05,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:17:05,371 INFO L225 Difference]: With dead ends: 684 [2019-11-16 00:17:05,371 INFO L226 Difference]: Without dead ends: 447 [2019-11-16 00:17:05,372 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2019-11-16 00:17:05,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-11-16 00:17:05,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 348. [2019-11-16 00:17:05,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-16 00:17:05,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 830 transitions. [2019-11-16 00:17:05,385 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 830 transitions. Word has length 37 [2019-11-16 00:17:05,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:17:05,385 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 830 transitions. [2019-11-16 00:17:05,385 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-16 00:17:05,385 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 830 transitions. [2019-11-16 00:17:05,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-16 00:17:05,386 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:17:05,386 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:17:05,590 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:17:05,590 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:17:05,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:17:05,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1001125521, now seen corresponding path program 3 times [2019-11-16 00:17:05,591 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:17:05,591 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34530665] [2019-11-16 00:17:05,591 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:05,591 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:05,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:17:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:17:05,743 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:05,744 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34530665] [2019-11-16 00:17:05,744 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964002983] [2019-11-16 00:17:05,744 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:17:05,817 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-16 00:17:05,817 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-16 00:17:05,818 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-16 00:17:05,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:17:05,851 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:17:05,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:17:05,855 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:05,856 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:17:05,856 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2019-11-16 00:17:05,856 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979628458] [2019-11-16 00:17:05,856 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-16 00:17:05,856 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:17:05,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-16 00:17:05,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-11-16 00:17:05,857 INFO L87 Difference]: Start difference. First operand 348 states and 830 transitions. Second operand 11 states. [2019-11-16 00:17:06,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:17:06,092 INFO L93 Difference]: Finished difference Result 676 states and 1584 transitions. [2019-11-16 00:17:06,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-16 00:17:06,093 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2019-11-16 00:17:06,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:17:06,096 INFO L225 Difference]: With dead ends: 676 [2019-11-16 00:17:06,096 INFO L226 Difference]: Without dead ends: 463 [2019-11-16 00:17:06,097 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2019-11-16 00:17:06,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2019-11-16 00:17:06,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 361. [2019-11-16 00:17:06,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2019-11-16 00:17:06,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 856 transitions. [2019-11-16 00:17:06,109 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 856 transitions. Word has length 41 [2019-11-16 00:17:06,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:17:06,109 INFO L462 AbstractCegarLoop]: Abstraction has 361 states and 856 transitions. [2019-11-16 00:17:06,109 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-16 00:17:06,109 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 856 transitions. [2019-11-16 00:17:06,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-16 00:17:06,110 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:17:06,111 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:17:06,314 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:17:06,314 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:17:06,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:17:06,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1827029934, now seen corresponding path program 4 times [2019-11-16 00:17:06,315 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:17:06,315 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450183876] [2019-11-16 00:17:06,315 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:06,315 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:06,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:17:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:17:06,459 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:06,459 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450183876] [2019-11-16 00:17:06,460 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009794019] [2019-11-16 00:17:06,460 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:17:06,529 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-16 00:17:06,529 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-16 00:17:06,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-16 00:17:06,534 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:17:06,570 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:17:06,571 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:17:06,577 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:06,577 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:17:06,577 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2019-11-16 00:17:06,578 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058420523] [2019-11-16 00:17:06,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-16 00:17:06,578 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:17:06,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-16 00:17:06,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2019-11-16 00:17:06,579 INFO L87 Difference]: Start difference. First operand 361 states and 856 transitions. Second operand 12 states. [2019-11-16 00:17:06,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:17:06,818 INFO L93 Difference]: Finished difference Result 708 states and 1648 transitions. [2019-11-16 00:17:06,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-16 00:17:06,819 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 45 [2019-11-16 00:17:06,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:17:06,822 INFO L225 Difference]: With dead ends: 708 [2019-11-16 00:17:06,822 INFO L226 Difference]: Without dead ends: 495 [2019-11-16 00:17:06,823 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2019-11-16 00:17:06,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2019-11-16 00:17:06,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 380. [2019-11-16 00:17:06,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2019-11-16 00:17:06,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 894 transitions. [2019-11-16 00:17:06,836 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 894 transitions. Word has length 45 [2019-11-16 00:17:06,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:17:06,837 INFO L462 AbstractCegarLoop]: Abstraction has 380 states and 894 transitions. [2019-11-16 00:17:06,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-16 00:17:06,837 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 894 transitions. [2019-11-16 00:17:06,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-16 00:17:06,838 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:17:06,838 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:17:07,042 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:17:07,042 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:17:07,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:17:07,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1380380529, now seen corresponding path program 5 times [2019-11-16 00:17:07,043 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:17:07,043 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241196782] [2019-11-16 00:17:07,043 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:07,043 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:07,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:17:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:17:07,187 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:07,187 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241196782] [2019-11-16 00:17:07,187 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767314889] [2019-11-16 00:17:07,188 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:17:07,267 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2019-11-16 00:17:07,268 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-16 00:17:07,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-16 00:17:07,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:17:07,313 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:17:07,315 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:17:07,318 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:07,318 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:17:07,319 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2019-11-16 00:17:07,319 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027863911] [2019-11-16 00:17:07,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-16 00:17:07,321 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:17:07,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-16 00:17:07,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2019-11-16 00:17:07,321 INFO L87 Difference]: Start difference. First operand 380 states and 894 transitions. Second operand 13 states. [2019-11-16 00:17:07,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:17:07,592 INFO L93 Difference]: Finished difference Result 740 states and 1712 transitions. [2019-11-16 00:17:07,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-16 00:17:07,593 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 49 [2019-11-16 00:17:07,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:17:07,596 INFO L225 Difference]: With dead ends: 740 [2019-11-16 00:17:07,597 INFO L226 Difference]: Without dead ends: 527 [2019-11-16 00:17:07,597 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2019-11-16 00:17:07,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2019-11-16 00:17:07,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 393. [2019-11-16 00:17:07,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2019-11-16 00:17:07,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 920 transitions. [2019-11-16 00:17:07,609 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 920 transitions. Word has length 49 [2019-11-16 00:17:07,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:17:07,609 INFO L462 AbstractCegarLoop]: Abstraction has 393 states and 920 transitions. [2019-11-16 00:17:07,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-16 00:17:07,609 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 920 transitions. [2019-11-16 00:17:07,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-16 00:17:07,610 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:17:07,610 INFO L380 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:17:07,821 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:17:07,822 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:17:07,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:17:07,822 INFO L82 PathProgramCache]: Analyzing trace with hash 178573198, now seen corresponding path program 6 times [2019-11-16 00:17:07,822 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:17:07,822 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664621310] [2019-11-16 00:17:07,822 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:07,822 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:07,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:17:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:17:07,963 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:07,963 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664621310] [2019-11-16 00:17:07,963 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720881976] [2019-11-16 00:17:07,964 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:17:08,041 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2019-11-16 00:17:08,042 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-16 00:17:08,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-16 00:17:08,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:17:08,101 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:17:08,102 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:17:08,108 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:17:08,108 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:17:08,108 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2019-11-16 00:17:08,108 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738386925] [2019-11-16 00:17:08,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-16 00:17:08,109 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:17:08,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-16 00:17:08,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2019-11-16 00:17:08,110 INFO L87 Difference]: Start difference. First operand 393 states and 920 transitions. Second operand 14 states. [2019-11-16 00:17:08,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:17:08,395 INFO L93 Difference]: Finished difference Result 788 states and 1808 transitions. [2019-11-16 00:17:08,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-16 00:17:08,396 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 53 [2019-11-16 00:17:08,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:17:08,400 INFO L225 Difference]: With dead ends: 788 [2019-11-16 00:17:08,400 INFO L226 Difference]: Without dead ends: 599 [2019-11-16 00:17:08,400 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=430, Unknown=0, NotChecked=0, Total=600 [2019-11-16 00:17:08,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2019-11-16 00:17:08,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 571. [2019-11-16 00:17:08,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2019-11-16 00:17:08,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 1280 transitions. [2019-11-16 00:17:08,433 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 1280 transitions. Word has length 53 [2019-11-16 00:17:08,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:17:08,433 INFO L462 AbstractCegarLoop]: Abstraction has 571 states and 1280 transitions. [2019-11-16 00:17:08,433 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-16 00:17:08,433 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 1280 transitions. [2019-11-16 00:17:08,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-16 00:17:08,434 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:17:08,434 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:17:08,638 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:17:08,638 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:17:08,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:17:08,639 INFO L82 PathProgramCache]: Analyzing trace with hash 910886993, now seen corresponding path program 7 times [2019-11-16 00:17:08,640 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:17:08,640 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158441465] [2019-11-16 00:17:08,640 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:08,640 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:17:08,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:17:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:17:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:17:08,728 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:17:08,729 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:17:08,811 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-16 00:17:08,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:17:08 BasicIcfg [2019-11-16 00:17:08,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:17:08,813 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:17:08,814 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:17:08,814 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:17:08,814 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:17:01" (3/4) ... [2019-11-16 00:17:08,816 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-16 00:17:08,891 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_38ad140a-26f9-4575-b245-84ef8e3ec0d3/bin/uautomizer/witness.graphml [2019-11-16 00:17:08,891 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:17:08,893 INFO L168 Benchmark]: Toolchain (without parser) took 8293.52 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 331.4 MB). Free memory was 942.5 MB in the beginning and 1.3 GB in the end (delta: -344.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:17:08,893 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 965.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:17:08,894 INFO L168 Benchmark]: CACSL2BoogieTranslator took 622.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:17:08,894 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:17:08,895 INFO L168 Benchmark]: Boogie Preprocessor took 25.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:17:08,895 INFO L168 Benchmark]: RCFGBuilder took 384.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:17:08,896 INFO L168 Benchmark]: TraceAbstraction took 7138.56 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 178.8 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -211.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:17:08,896 INFO L168 Benchmark]: Witness Printer took 77.50 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:17:08,899 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 965.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 622.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 384.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7138.56 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 178.8 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -211.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 77.50 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 703]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L675] 0 int i = 3, j = 6; VAL [i=3, j=6] [L693] 0 pthread_t id1, id2; VAL [i=3, j=6] [L694] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arg={0:0}, i=3, j=6] [L677] 1 int k = 0; VAL [arg={0:0}, arg={0:0}, i=3, j=6, k=0] [L695] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0] [L685] 2 int k = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0, k=0] [L677] COND TRUE 1 k < 5 [L679] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=0] [L685] COND TRUE 2 k < 5 [L687] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=0, k=0] [L685] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=0, k=1] [L677] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=1] [L677] COND TRUE 1 k < 5 [L679] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=1] [L685] COND TRUE 2 k < 5 [L687] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=1, k=1] [L685] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=1] [L677] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=2] [L677] COND TRUE 1 k < 5 [L679] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=2] [L685] COND TRUE 2 k < 5 [L687] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=2, k=2] [L685] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=2] [L677] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=3] [L677] COND TRUE 1 k < 5 [L679] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=3] [L685] COND TRUE 2 k < 5 [L687] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=3, k=3] [L685] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=3] [L677] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=4] [L677] COND TRUE 1 k < 5 [L679] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=4] [L685] COND TRUE 2 k < 5 [L687] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=4, k=4] [L697] 0 int condI = i >= (2*5 +6); [L700] 0 int condJ = j >= (2*5 +6); VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=4, k=4] [L702] COND TRUE 0 condI || condJ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=4, k=4] [L703] 0 __VERIFIER_error() VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=4, k=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 64 locations, 1 error locations. Result: UNSAFE, OverallTime: 7.0s, OverallIterations: 12, TraceHistogramMax: 5, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 602 SDtfs, 1986 SDslu, 2613 SDs, 0 SdLazy, 539 SolverSat, 223 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 474 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1012occurred 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: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 792 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 763 NumberOfCodeBlocks, 763 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 687 ConstructedInterpolants, 0 QuantifiedInterpolants, 82453 SizeOfPredicates, 69 NumberOfNonLiveVariables, 880 ConjunctsInSsa, 93 ConjunctsInUnsatCore, 19 InterpolantComputations, 3 PerfectInterpolantSequences, 2/244 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 incorrect! Received shutdown request...