./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_183095a3-9934-44cb-93f5-1d818ffa8a46/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_183095a3-9934-44cb-93f5-1d818ffa8a46/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_183095a3-9934-44cb-93f5-1d818ffa8a46/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_183095a3-9934-44cb-93f5-1d818ffa8a46/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_183095a3-9934-44cb-93f5-1d818ffa8a46/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_183095a3-9934-44cb-93f5-1d818ffa8a46/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 eca14b1c5c5e18905aebb27c71c7fb4b781dcc00 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:50:57,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:50:57,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:50:57,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:50:57,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:50:57,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:50:57,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:50:57,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:50:57,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:50:57,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:50:57,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:50:57,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:50:57,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:50:57,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:50:57,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:50:57,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:50:57,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:50:57,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:50:57,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:50:57,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:50:57,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:50:57,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:50:57,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:50:57,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:50:57,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:50:57,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:50:57,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:50:57,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:50:57,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:50:57,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:50:57,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:50:57,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:50:57,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:50:57,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:50:57,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:50:57,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:50:57,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:50:57,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:50:57,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:50:57,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:50:57,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:50:57,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_183095a3-9934-44cb-93f5-1d818ffa8a46/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:50:58,000 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:50:58,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:50:58,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:50:58,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:50:58,001 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:50:58,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:50:58,002 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:50:58,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:50:58,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:50:58,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:50:58,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:50:58,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:50:58,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:50:58,003 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:50:58,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:50:58,003 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:50:58,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:50:58,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:50:58,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:50:58,004 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:50:58,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:50:58,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:50:58,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:50:58,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:50:58,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:50:58,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:50:58,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:50:58,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:50:58,006 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_183095a3-9934-44cb-93f5-1d818ffa8a46/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 -> eca14b1c5c5e18905aebb27c71c7fb4b781dcc00 [2019-11-25 08:50:58,142 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:50:58,153 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:50:58,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:50:58,158 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:50:58,158 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:50:58,159 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_183095a3-9934-44cb-93f5-1d818ffa8a46/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc.i [2019-11-25 08:50:58,208 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_183095a3-9934-44cb-93f5-1d818ffa8a46/bin/uautomizer/data/a2bc9cefc/025b2db8aac44612b7ff1e45511ef398/FLAG37a86317e [2019-11-25 08:50:58,638 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:50:58,638 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_183095a3-9934-44cb-93f5-1d818ffa8a46/sv-benchmarks/c/pthread-wmm/safe019_pso.oepc.i [2019-11-25 08:50:58,652 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_183095a3-9934-44cb-93f5-1d818ffa8a46/bin/uautomizer/data/a2bc9cefc/025b2db8aac44612b7ff1e45511ef398/FLAG37a86317e [2019-11-25 08:50:59,001 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_183095a3-9934-44cb-93f5-1d818ffa8a46/bin/uautomizer/data/a2bc9cefc/025b2db8aac44612b7ff1e45511ef398 [2019-11-25 08:50:59,003 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:50:59,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:50:59,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:50:59,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:50:59,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:50:59,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:59" (1/1) ... [2019-11-25 08:50:59,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35addeec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:59, skipping insertion in model container [2019-11-25 08:50:59,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:59" (1/1) ... [2019-11-25 08:50:59,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:50:59,060 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:50:59,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:50:59,524 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:50:59,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:50:59,633 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:50:59,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:59 WrapperNode [2019-11-25 08:50:59,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:50:59,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:50:59,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:50:59,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:50:59,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:59" (1/1) ... [2019-11-25 08:50:59,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:59" (1/1) ... [2019-11-25 08:50:59,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:50:59,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:50:59,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:50:59,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:50:59,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:59" (1/1) ... [2019-11-25 08:50:59,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:59" (1/1) ... [2019-11-25 08:50:59,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:59" (1/1) ... [2019-11-25 08:50:59,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:59" (1/1) ... [2019-11-25 08:50:59,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:59" (1/1) ... [2019-11-25 08:50:59,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:59" (1/1) ... [2019-11-25 08:50:59,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:59" (1/1) ... [2019-11-25 08:50:59,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:50:59,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:50:59,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:50:59,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:50:59,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_183095a3-9934-44cb-93f5-1d818ffa8a46/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 [2019-11-25 08:50:59,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:50:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-25 08:50:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:50:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:50:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-25 08:50:59,815 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-25 08:50:59,815 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-25 08:50:59,815 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-25 08:50:59,815 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-25 08:50:59,815 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-25 08:50:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-11-25 08:50:59,818 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-11-25 08:50:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-25 08:50:59,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:50:59,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:50:59,820 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-25 08:51:00,141 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:51:00,141 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:51:00,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:00 BoogieIcfgContainer [2019-11-25 08:51:00,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:51:00,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:51:00,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:51:00,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:51:00,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:50:59" (1/3) ... [2019-11-25 08:51:00,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed1828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:00, skipping insertion in model container [2019-11-25 08:51:00,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:59" (2/3) ... [2019-11-25 08:51:00,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed1828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:00, skipping insertion in model container [2019-11-25 08:51:00,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:00" (3/3) ... [2019-11-25 08:51:00,148 INFO L109 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2019-11-25 08:51:00,195 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,196 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,196 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,196 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,196 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,197 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,197 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,197 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,197 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,197 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,198 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,198 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,198 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,198 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,198 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,199 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,199 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,199 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,200 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,200 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,200 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,200 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,201 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,201 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,201 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,201 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,201 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,202 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,202 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,202 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,202 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,202 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,202 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,203 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,203 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,203 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,203 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,204 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,204 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,204 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,204 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,204 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,205 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,205 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,205 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,205 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,205 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,205 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,206 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,206 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,206 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,206 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,207 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,207 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,207 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,207 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,207 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,207 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,217 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,217 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,217 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,218 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,218 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,218 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,218 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,219 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,219 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,219 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,220 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,220 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,221 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,222 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,266 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:51:00,266 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:51:00,273 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:51:00,283 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:51:00,299 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:51:00,300 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:51:00,300 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:51:00,300 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:51:00,300 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:51:00,300 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:51:00,301 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:51:00,301 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:51:00,311 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 120 places, 92 transitions [2019-11-25 08:51:00,913 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5472 states. [2019-11-25 08:51:00,915 INFO L276 IsEmpty]: Start isEmpty. Operand 5472 states. [2019-11-25 08:51:00,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-25 08:51:00,946 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:00,947 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:00,948 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:00,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:00,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1734521025, now seen corresponding path program 1 times [2019-11-25 08:51:00,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:00,962 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538430430] [2019-11-25 08:51:00,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:01,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:01,380 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538430430] [2019-11-25 08:51:01,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:01,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:51:01,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502118211] [2019-11-25 08:51:01,387 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:51:01,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:01,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:51:01,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:51:01,403 INFO L87 Difference]: Start difference. First operand 5472 states. Second operand 4 states. [2019-11-25 08:51:01,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:01,603 INFO L93 Difference]: Finished difference Result 5709 states and 21934 transitions. [2019-11-25 08:51:01,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:51:01,606 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2019-11-25 08:51:01,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:01,661 INFO L225 Difference]: With dead ends: 5709 [2019-11-25 08:51:01,662 INFO L226 Difference]: Without dead ends: 2393 [2019-11-25 08:51:01,663 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:51:01,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2393 states. [2019-11-25 08:51:01,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 2393. [2019-11-25 08:51:01,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2393 states. [2019-11-25 08:51:01,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 8937 transitions. [2019-11-25 08:51:01,880 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 8937 transitions. Word has length 35 [2019-11-25 08:51:01,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:01,883 INFO L462 AbstractCegarLoop]: Abstraction has 2393 states and 8937 transitions. [2019-11-25 08:51:01,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:51:01,883 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 8937 transitions. [2019-11-25 08:51:01,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-25 08:51:01,888 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:01,889 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:01,889 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:01,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:01,891 INFO L82 PathProgramCache]: Analyzing trace with hash -2069628597, now seen corresponding path program 1 times [2019-11-25 08:51:01,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:01,892 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574354928] [2019-11-25 08:51:01,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:02,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:02,075 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574354928] [2019-11-25 08:51:02,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:02,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:51:02,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375007391] [2019-11-25 08:51:02,077 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:51:02,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:02,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:51:02,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:51:02,078 INFO L87 Difference]: Start difference. First operand 2393 states and 8937 transitions. Second operand 5 states. [2019-11-25 08:51:02,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:02,170 INFO L93 Difference]: Finished difference Result 2564 states and 9321 transitions. [2019-11-25 08:51:02,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:51:02,171 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2019-11-25 08:51:02,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:02,193 INFO L225 Difference]: With dead ends: 2564 [2019-11-25 08:51:02,193 INFO L226 Difference]: Without dead ends: 2309 [2019-11-25 08:51:02,194 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:51:02,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2019-11-25 08:51:02,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2309. [2019-11-25 08:51:02,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2309 states. [2019-11-25 08:51:02,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 8545 transitions. [2019-11-25 08:51:02,286 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 8545 transitions. Word has length 36 [2019-11-25 08:51:02,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:02,287 INFO L462 AbstractCegarLoop]: Abstraction has 2309 states and 8545 transitions. [2019-11-25 08:51:02,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:51:02,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 8545 transitions. [2019-11-25 08:51:02,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-25 08:51:02,292 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:02,292 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:02,293 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:02,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:02,293 INFO L82 PathProgramCache]: Analyzing trace with hash -88806324, now seen corresponding path program 1 times [2019-11-25 08:51:02,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:02,293 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781666074] [2019-11-25 08:51:02,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:02,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:02,462 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781666074] [2019-11-25 08:51:02,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:02,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:51:02,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048374930] [2019-11-25 08:51:02,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:51:02,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:02,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:51:02,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:51:02,464 INFO L87 Difference]: Start difference. First operand 2309 states and 8545 transitions. Second operand 6 states. [2019-11-25 08:51:02,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:02,595 INFO L93 Difference]: Finished difference Result 2174 states and 7681 transitions. [2019-11-25 08:51:02,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:51:02,596 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2019-11-25 08:51:02,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:02,614 INFO L225 Difference]: With dead ends: 2174 [2019-11-25 08:51:02,614 INFO L226 Difference]: Without dead ends: 1931 [2019-11-25 08:51:02,614 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:51:02,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1931 states. [2019-11-25 08:51:02,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1931 to 1931. [2019-11-25 08:51:02,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1931 states. [2019-11-25 08:51:02,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 6907 transitions. [2019-11-25 08:51:02,688 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 6907 transitions. Word has length 37 [2019-11-25 08:51:02,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:02,688 INFO L462 AbstractCegarLoop]: Abstraction has 1931 states and 6907 transitions. [2019-11-25 08:51:02,689 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:51:02,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 6907 transitions. [2019-11-25 08:51:02,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-25 08:51:02,697 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:02,697 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:02,698 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:02,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:02,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1981057076, now seen corresponding path program 1 times [2019-11-25 08:51:02,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:02,699 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464374213] [2019-11-25 08:51:02,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:02,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:02,847 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464374213] [2019-11-25 08:51:02,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:02,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:51:02,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819080453] [2019-11-25 08:51:02,848 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:51:02,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:02,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:51:02,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:51:02,849 INFO L87 Difference]: Start difference. First operand 1931 states and 6907 transitions. Second operand 7 states. [2019-11-25 08:51:02,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:02,981 INFO L93 Difference]: Finished difference Result 1364 states and 4531 transitions. [2019-11-25 08:51:02,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:51:02,982 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-11-25 08:51:02,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:02,993 INFO L225 Difference]: With dead ends: 1364 [2019-11-25 08:51:02,993 INFO L226 Difference]: Without dead ends: 1175 [2019-11-25 08:51:02,994 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:51:03,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2019-11-25 08:51:03,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1175. [2019-11-25 08:51:03,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1175 states. [2019-11-25 08:51:03,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 3883 transitions. [2019-11-25 08:51:03,031 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 3883 transitions. Word has length 38 [2019-11-25 08:51:03,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:03,031 INFO L462 AbstractCegarLoop]: Abstraction has 1175 states and 3883 transitions. [2019-11-25 08:51:03,032 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:51:03,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 3883 transitions. [2019-11-25 08:51:03,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-25 08:51:03,035 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:03,035 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:03,036 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:03,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:03,036 INFO L82 PathProgramCache]: Analyzing trace with hash -646003633, now seen corresponding path program 1 times [2019-11-25 08:51:03,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:03,036 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486618318] [2019-11-25 08:51:03,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:03,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:03,154 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486618318] [2019-11-25 08:51:03,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:03,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:51:03,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876322075] [2019-11-25 08:51:03,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:51:03,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:03,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:51:03,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:51:03,156 INFO L87 Difference]: Start difference. First operand 1175 states and 3883 transitions. Second operand 7 states. [2019-11-25 08:51:03,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:03,285 INFO L93 Difference]: Finished difference Result 1904 states and 6331 transitions. [2019-11-25 08:51:03,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:51:03,286 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2019-11-25 08:51:03,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:03,296 INFO L225 Difference]: With dead ends: 1904 [2019-11-25 08:51:03,296 INFO L226 Difference]: Without dead ends: 1055 [2019-11-25 08:51:03,296 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:51:03,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2019-11-25 08:51:03,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 1055. [2019-11-25 08:51:03,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1055 states. [2019-11-25 08:51:03,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 3502 transitions. [2019-11-25 08:51:03,397 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 3502 transitions. Word has length 39 [2019-11-25 08:51:03,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:03,397 INFO L462 AbstractCegarLoop]: Abstraction has 1055 states and 3502 transitions. [2019-11-25 08:51:03,397 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:51:03,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 3502 transitions. [2019-11-25 08:51:03,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-25 08:51:03,401 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:03,401 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:03,402 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:03,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:03,402 INFO L82 PathProgramCache]: Analyzing trace with hash -571248129, now seen corresponding path program 2 times [2019-11-25 08:51:03,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:03,402 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571657492] [2019-11-25 08:51:03,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:03,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:03,565 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571657492] [2019-11-25 08:51:03,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:03,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:51:03,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694480526] [2019-11-25 08:51:03,566 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:51:03,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:03,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:51:03,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:51:03,567 INFO L87 Difference]: Start difference. First operand 1055 states and 3502 transitions. Second operand 8 states. [2019-11-25 08:51:03,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:03,828 INFO L93 Difference]: Finished difference Result 2252 states and 7582 transitions. [2019-11-25 08:51:03,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-25 08:51:03,828 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2019-11-25 08:51:03,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:03,836 INFO L225 Difference]: With dead ends: 2252 [2019-11-25 08:51:03,836 INFO L226 Difference]: Without dead ends: 920 [2019-11-25 08:51:03,837 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2019-11-25 08:51:03,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2019-11-25 08:51:03,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 911. [2019-11-25 08:51:03,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 911 states. [2019-11-25 08:51:03,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 3031 transitions. [2019-11-25 08:51:03,865 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 3031 transitions. Word has length 39 [2019-11-25 08:51:03,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:03,866 INFO L462 AbstractCegarLoop]: Abstraction has 911 states and 3031 transitions. [2019-11-25 08:51:03,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:51:03,866 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 3031 transitions. [2019-11-25 08:51:03,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-25 08:51:03,869 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:03,870 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:03,870 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:03,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:03,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1972568161, now seen corresponding path program 3 times [2019-11-25 08:51:03,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:03,871 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524041824] [2019-11-25 08:51:03,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:04,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:04,034 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524041824] [2019-11-25 08:51:04,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:04,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:51:04,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711488039] [2019-11-25 08:51:04,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:51:04,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:04,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:51:04,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:51:04,036 INFO L87 Difference]: Start difference. First operand 911 states and 3031 transitions. Second operand 8 states. [2019-11-25 08:51:04,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:04,153 INFO L93 Difference]: Finished difference Result 749 states and 2437 transitions. [2019-11-25 08:51:04,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:51:04,153 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2019-11-25 08:51:04,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:04,154 INFO L225 Difference]: With dead ends: 749 [2019-11-25 08:51:04,154 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:51:04,154 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:51:04,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:51:04,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:51:04,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:51:04,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:51:04,155 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2019-11-25 08:51:04,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:04,155 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:51:04,155 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:51:04,155 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:51:04,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:51:04,159 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:51:04,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:51:04 BasicIcfg [2019-11-25 08:51:04,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:51:04,162 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:51:04,162 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:51:04,162 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:51:04,165 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:00" (3/4) ... [2019-11-25 08:51:04,170 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:51:04,190 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-25 08:51:04,196 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-25 08:51:04,197 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-25 08:51:04,197 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2019-11-25 08:51:04,201 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-25 08:51:04,202 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:51:04,204 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:51:04,254 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_183095a3-9934-44cb-93f5-1d818ffa8a46/bin/uautomizer/witness.graphml [2019-11-25 08:51:04,254 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:51:04,257 INFO L168 Benchmark]: Toolchain (without parser) took 5251.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 214.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -129.2 MB). Peak memory consumption was 85.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:04,259 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:04,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -159.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:04,264 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.85 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. [2019-11-25 08:51:04,265 INFO L168 Benchmark]: Boogie Preprocessor took 35.70 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:04,265 INFO L168 Benchmark]: RCFGBuilder took 402.58 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:04,265 INFO L168 Benchmark]: TraceAbstraction took 4018.60 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 80.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 155.0 kB). Peak memory consumption was 80.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:04,266 INFO L168 Benchmark]: Witness Printer took 92.14 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: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:04,268 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 629.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -159.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 68.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.70 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 402.58 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4018.60 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 80.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 155.0 kB). Peak memory consumption was 80.9 MB. Max. memory is 11.5 GB. * Witness Printer took 92.14 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: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 17 procedures, 112 locations, 1 error locations. Result: SAFE, OverallTime: 3.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 406 SDtfs, 704 SDslu, 1190 SDs, 0 SdLazy, 170 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5472occurred 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: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 263 NumberOfCodeBlocks, 263 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 256 ConstructedInterpolants, 0 QuantifiedInterpolants, 28670 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...