./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe020_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_db5b5669-1594-4a79-87a3-e253056fe582/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_db5b5669-1594-4a79-87a3-e253056fe582/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_db5b5669-1594-4a79-87a3-e253056fe582/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_db5b5669-1594-4a79-87a3-e253056fe582/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe020_pso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_db5b5669-1594-4a79-87a3-e253056fe582/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_db5b5669-1594-4a79-87a3-e253056fe582/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 3f4304ec15814f90b0e0d70e4496f4f9ddce1a76 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 02:22:12,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:22:12,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:22:12,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:22:12,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:22:12,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:22:12,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:22:12,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:22:12,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:22:12,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:22:12,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:22:12,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:22:12,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:22:12,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:22:12,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:22:12,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:22:12,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:22:12,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:22:12,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:22:12,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:22:12,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:22:12,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:22:12,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:22:12,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:22:12,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:22:12,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:22:12,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:22:12,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:22:12,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:22:12,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:22:12,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:22:12,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:22:12,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:22:12,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:22:12,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:22:12,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:22:12,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:22:12,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:22:12,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:22:12,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:22:12,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:22:12,843 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_db5b5669-1594-4a79-87a3-e253056fe582/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 02:22:12,872 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:22:12,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:22:12,884 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:22:12,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:22:12,885 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:22:12,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:22:12,886 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 02:22:12,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:22:12,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 02:22:12,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:22:12,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 02:22:12,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 02:22:12,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 02:22:12,887 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 02:22:12,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 02:22:12,888 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:22:12,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 02:22:12,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:22:12,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:22:12,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 02:22:12,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 02:22:12,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 02:22:12,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:22:12,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 02:22:12,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 02:22:12,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 02:22:12,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 02:22:12,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 02:22:12,891 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_db5b5669-1594-4a79-87a3-e253056fe582/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 -> 3f4304ec15814f90b0e0d70e4496f4f9ddce1a76 [2019-11-20 02:22:13,101 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:22:13,122 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:22:13,125 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:22:13,127 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:22:13,128 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:22:13,129 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_db5b5669-1594-4a79-87a3-e253056fe582/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe020_pso.oepc.i [2019-11-20 02:22:13,198 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_db5b5669-1594-4a79-87a3-e253056fe582/bin/uautomizer/data/ee035f94c/cd262d2d5dd042238d0b8a68144e4b80/FLAG2f1b7ab42 [2019-11-20 02:22:13,643 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:22:13,643 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_db5b5669-1594-4a79-87a3-e253056fe582/sv-benchmarks/c/pthread-wmm/safe020_pso.oepc.i [2019-11-20 02:22:13,662 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_db5b5669-1594-4a79-87a3-e253056fe582/bin/uautomizer/data/ee035f94c/cd262d2d5dd042238d0b8a68144e4b80/FLAG2f1b7ab42 [2019-11-20 02:22:13,677 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_db5b5669-1594-4a79-87a3-e253056fe582/bin/uautomizer/data/ee035f94c/cd262d2d5dd042238d0b8a68144e4b80 [2019-11-20 02:22:13,680 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:22:13,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 02:22:13,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:22:13,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:22:13,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:22:13,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:22:13" (1/1) ... [2019-11-20 02:22:13,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11b2fcb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:22:13, skipping insertion in model container [2019-11-20 02:22:13,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:22:13" (1/1) ... [2019-11-20 02:22:13,698 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:22:13,761 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:22:14,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:22:14,211 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:22:14,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:22:14,359 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:22:14,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:22:14 WrapperNode [2019-11-20 02:22:14,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:22:14,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 02:22:14,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 02:22:14,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 02:22:14,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:22:14" (1/1) ... [2019-11-20 02:22:14,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:22:14" (1/1) ... [2019-11-20 02:22:14,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 02:22:14,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:22:14,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:22:14,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:22:14,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:22:14" (1/1) ... [2019-11-20 02:22:14,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:22:14" (1/1) ... [2019-11-20 02:22:14,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:22:14" (1/1) ... [2019-11-20 02:22:14,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:22:14" (1/1) ... [2019-11-20 02:22:14,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:22:14" (1/1) ... [2019-11-20 02:22:14,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:22:14" (1/1) ... [2019-11-20 02:22:14,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:22:14" (1/1) ... [2019-11-20 02:22:14,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:22:14,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:22:14,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:22:14,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:22:14,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:22:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_db5b5669-1594-4a79-87a3-e253056fe582/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 [2019-11-20 02:22:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 02:22:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-20 02:22:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 02:22:14,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 02:22:14,572 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-20 02:22:14,572 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-20 02:22:14,572 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-20 02:22:14,573 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-20 02:22:14,573 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-20 02:22:14,573 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-20 02:22:14,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-20 02:22:14,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:22:14,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:22:14,578 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-20 02:22:15,008 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:22:15,008 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 02:22:15,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:22:15 BoogieIcfgContainer [2019-11-20 02:22:15,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:22:15,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 02:22:15,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 02:22:15,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 02:22:15,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:22:13" (1/3) ... [2019-11-20 02:22:15,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4050df7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:22:15, skipping insertion in model container [2019-11-20 02:22:15,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:22:14" (2/3) ... [2019-11-20 02:22:15,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4050df7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:22:15, skipping insertion in model container [2019-11-20 02:22:15,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:22:15" (3/3) ... [2019-11-20 02:22:15,024 INFO L109 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc.i [2019-11-20 02:22:15,112 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,113 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,113 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,113 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,113 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,114 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,114 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,114 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,114 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,114 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,115 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,115 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,115 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,116 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,116 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,116 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,116 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,116 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,117 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,117 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,117 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,117 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,118 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,118 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,118 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,118 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,119 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,119 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,119 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,119 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,120 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,120 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,120 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,120 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,121 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,121 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,121 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,121 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,122 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,122 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,122 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,122 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,123 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,123 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,123 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,123 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,126 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,126 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,126 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,126 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,127 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,127 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,127 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,127 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 02:22:15,173 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 02:22:15,173 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 02:22:15,182 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 02:22:15,194 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 02:22:15,213 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 02:22:15,213 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 02:22:15,214 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 02:22:15,214 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:22:15,214 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:22:15,214 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 02:22:15,214 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:22:15,214 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 02:22:15,234 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 74 transitions [2019-11-20 02:22:18,667 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 31743 states. [2019-11-20 02:22:18,669 INFO L276 IsEmpty]: Start isEmpty. Operand 31743 states. [2019-11-20 02:22:18,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-20 02:22:18,725 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:22:18,726 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] [2019-11-20 02:22:18,727 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:22:18,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:22:18,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1289340457, now seen corresponding path program 1 times [2019-11-20 02:22:18,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:22:18,740 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052525361] [2019-11-20 02:22:18,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:22:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:22:19,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:22:19,038 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052525361] [2019-11-20 02:22:19,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:22:19,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 02:22:19,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622985433] [2019-11-20 02:22:19,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 02:22:19,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:22:19,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 02:22:19,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 02:22:19,060 INFO L87 Difference]: Start difference. First operand 31743 states. Second operand 4 states. [2019-11-20 02:22:19,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:22:19,784 INFO L93 Difference]: Finished difference Result 33012 states and 103292 transitions. [2019-11-20 02:22:19,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 02:22:19,786 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-20 02:22:19,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:22:19,937 INFO L225 Difference]: With dead ends: 33012 [2019-11-20 02:22:19,938 INFO L226 Difference]: Without dead ends: 14274 [2019-11-20 02:22:19,939 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 [2019-11-20 02:22:20,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14274 states. [2019-11-20 02:22:20,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14274 to 14274. [2019-11-20 02:22:20,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14274 states. [2019-11-20 02:22:20,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14274 states to 14274 states and 44297 transitions. [2019-11-20 02:22:20,678 INFO L78 Accepts]: Start accepts. Automaton has 14274 states and 44297 transitions. Word has length 30 [2019-11-20 02:22:20,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:22:20,679 INFO L462 AbstractCegarLoop]: Abstraction has 14274 states and 44297 transitions. [2019-11-20 02:22:20,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 02:22:20,680 INFO L276 IsEmpty]: Start isEmpty. Operand 14274 states and 44297 transitions. [2019-11-20 02:22:20,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 02:22:20,706 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:22:20,707 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] [2019-11-20 02:22:20,707 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:22:20,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:22:20,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1842768317, now seen corresponding path program 1 times [2019-11-20 02:22:20,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:22:20,716 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717854970] [2019-11-20 02:22:20,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:22:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:22:20,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:22:20,861 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717854970] [2019-11-20 02:22:20,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:22:20,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 02:22:20,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784280327] [2019-11-20 02:22:20,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 02:22:20,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:22:20,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 02:22:20,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 02:22:20,864 INFO L87 Difference]: Start difference. First operand 14274 states and 44297 transitions. Second operand 5 states. [2019-11-20 02:22:21,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:22:21,271 INFO L93 Difference]: Finished difference Result 14274 states and 42110 transitions. [2019-11-20 02:22:21,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 02:22:21,272 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-20 02:22:21,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:22:21,333 INFO L225 Difference]: With dead ends: 14274 [2019-11-20 02:22:21,333 INFO L226 Difference]: Without dead ends: 12573 [2019-11-20 02:22:21,334 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 [2019-11-20 02:22:21,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12573 states. [2019-11-20 02:22:21,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12573 to 12573. [2019-11-20 02:22:21,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12573 states. [2019-11-20 02:22:21,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12573 states to 12573 states and 38060 transitions. [2019-11-20 02:22:21,825 INFO L78 Accepts]: Start accepts. Automaton has 12573 states and 38060 transitions. Word has length 31 [2019-11-20 02:22:21,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:22:21,826 INFO L462 AbstractCegarLoop]: Abstraction has 12573 states and 38060 transitions. [2019-11-20 02:22:21,826 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 02:22:21,826 INFO L276 IsEmpty]: Start isEmpty. Operand 12573 states and 38060 transitions. [2019-11-20 02:22:21,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 02:22:21,861 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:22:21,862 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] [2019-11-20 02:22:21,862 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:22:21,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:22:21,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1714545392, now seen corresponding path program 1 times [2019-11-20 02:22:21,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:22:21,863 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113336101] [2019-11-20 02:22:21,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:22:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:22:22,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:22:22,030 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113336101] [2019-11-20 02:22:22,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:22:22,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 02:22:22,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141853499] [2019-11-20 02:22:22,032 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 02:22:22,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:22:22,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 02:22:22,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 02:22:22,032 INFO L87 Difference]: Start difference. First operand 12573 states and 38060 transitions. Second operand 6 states. [2019-11-20 02:22:22,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:22:22,229 INFO L93 Difference]: Finished difference Result 8928 states and 24938 transitions. [2019-11-20 02:22:22,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 02:22:22,230 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-20 02:22:22,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:22:22,256 INFO L225 Difference]: With dead ends: 8928 [2019-11-20 02:22:22,257 INFO L226 Difference]: Without dead ends: 7470 [2019-11-20 02:22:22,257 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 [2019-11-20 02:22:22,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7470 states. [2019-11-20 02:22:22,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7470 to 7470. [2019-11-20 02:22:22,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7470 states. [2019-11-20 02:22:22,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7470 states to 7470 states and 21050 transitions. [2019-11-20 02:22:22,674 INFO L78 Accepts]: Start accepts. Automaton has 7470 states and 21050 transitions. Word has length 32 [2019-11-20 02:22:22,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:22:22,675 INFO L462 AbstractCegarLoop]: Abstraction has 7470 states and 21050 transitions. [2019-11-20 02:22:22,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 02:22:22,675 INFO L276 IsEmpty]: Start isEmpty. Operand 7470 states and 21050 transitions. [2019-11-20 02:22:22,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 02:22:22,693 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:22:22,693 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] [2019-11-20 02:22:22,694 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:22:22,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:22:22,694 INFO L82 PathProgramCache]: Analyzing trace with hash -211341853, now seen corresponding path program 1 times [2019-11-20 02:22:22,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:22:22,695 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201093647] [2019-11-20 02:22:22,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:22:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:22:22,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:22:22,817 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201093647] [2019-11-20 02:22:22,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:22:22,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 02:22:22,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567077488] [2019-11-20 02:22:22,818 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 02:22:22,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:22:22,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 02:22:22,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-20 02:22:22,819 INFO L87 Difference]: Start difference. First operand 7470 states and 21050 transitions. Second operand 6 states. [2019-11-20 02:22:22,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:22:22,978 INFO L93 Difference]: Finished difference Result 12087 states and 34010 transitions. [2019-11-20 02:22:22,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 02:22:22,979 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-20 02:22:22,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:22:23,001 INFO L225 Difference]: With dead ends: 12087 [2019-11-20 02:22:23,002 INFO L226 Difference]: Without dead ends: 6678 [2019-11-20 02:22:23,002 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-20 02:22:23,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6678 states. [2019-11-20 02:22:23,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6678 to 6678. [2019-11-20 02:22:23,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6678 states. [2019-11-20 02:22:23,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6678 states to 6678 states and 18665 transitions. [2019-11-20 02:22:23,182 INFO L78 Accepts]: Start accepts. Automaton has 6678 states and 18665 transitions. Word has length 33 [2019-11-20 02:22:23,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:22:23,182 INFO L462 AbstractCegarLoop]: Abstraction has 6678 states and 18665 transitions. [2019-11-20 02:22:23,182 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 02:22:23,183 INFO L276 IsEmpty]: Start isEmpty. Operand 6678 states and 18665 transitions. [2019-11-20 02:22:23,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 02:22:23,195 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:22:23,195 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] [2019-11-20 02:22:23,195 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:22:23,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:22:23,196 INFO L82 PathProgramCache]: Analyzing trace with hash -11055855, now seen corresponding path program 2 times [2019-11-20 02:22:23,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:22:23,196 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446292783] [2019-11-20 02:22:23,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:22:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:22:23,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:22:23,408 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446292783] [2019-11-20 02:22:23,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:22:23,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 02:22:23,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836508977] [2019-11-20 02:22:23,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 02:22:23,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:22:23,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 02:22:23,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 02:22:23,410 INFO L87 Difference]: Start difference. First operand 6678 states and 18665 transitions. Second operand 7 states. [2019-11-20 02:22:23,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:22:23,684 INFO L93 Difference]: Finished difference Result 11052 states and 31058 transitions. [2019-11-20 02:22:23,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 02:22:23,685 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-20 02:22:23,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:22:23,705 INFO L225 Difference]: With dead ends: 11052 [2019-11-20 02:22:23,705 INFO L226 Difference]: Without dead ends: 6246 [2019-11-20 02:22:23,705 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-20 02:22:23,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6246 states. [2019-11-20 02:22:23,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6246 to 6246. [2019-11-20 02:22:23,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6246 states. [2019-11-20 02:22:23,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6246 states to 6246 states and 17585 transitions. [2019-11-20 02:22:23,872 INFO L78 Accepts]: Start accepts. Automaton has 6246 states and 17585 transitions. Word has length 33 [2019-11-20 02:22:23,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:22:23,872 INFO L462 AbstractCegarLoop]: Abstraction has 6246 states and 17585 transitions. [2019-11-20 02:22:23,872 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 02:22:23,873 INFO L276 IsEmpty]: Start isEmpty. Operand 6246 states and 17585 transitions. [2019-11-20 02:22:23,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 02:22:23,881 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 02:22:23,882 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] [2019-11-20 02:22:23,882 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 02:22:23,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:22:23,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1897530323, now seen corresponding path program 3 times [2019-11-20 02:22:23,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:22:23,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394944386] [2019-11-20 02:22:23,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:22:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:22:24,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:22:24,016 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394944386] [2019-11-20 02:22:24,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 02:22:24,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 02:22:24,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415215831] [2019-11-20 02:22:24,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 02:22:24,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 02:22:24,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 02:22:24,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 02:22:24,019 INFO L87 Difference]: Start difference. First operand 6246 states and 17585 transitions. Second operand 7 states. [2019-11-20 02:22:24,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 02:22:24,171 INFO L93 Difference]: Finished difference Result 4788 states and 13211 transitions. [2019-11-20 02:22:24,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 02:22:24,171 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-20 02:22:24,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 02:22:24,172 INFO L225 Difference]: With dead ends: 4788 [2019-11-20 02:22:24,172 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 02:22:24,173 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 [2019-11-20 02:22:24,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 02:22:24,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 02:22:24,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 02:22:24,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 02:22:24,174 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-11-20 02:22:24,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 02:22:24,174 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:22:24,174 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 02:22:24,174 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 02:22:24,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 02:22:24,178 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 02:22:24,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 02:22:24 BasicIcfg [2019-11-20 02:22:24,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 02:22:24,181 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 02:22:24,181 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 02:22:24,181 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 02:22:24,182 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:22:15" (3/4) ... [2019-11-20 02:22:24,187 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 02:22:24,204 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-20 02:22:24,217 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-20 02:22:24,217 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-20 02:22:24,221 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-20 02:22:24,222 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 02:22:24,222 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 02:22:24,278 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_db5b5669-1594-4a79-87a3-e253056fe582/bin/uautomizer/witness.graphml [2019-11-20 02:22:24,278 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 02:22:24,281 INFO L168 Benchmark]: Toolchain (without parser) took 10599.36 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 456.7 MB). Free memory was 938.0 MB in the beginning and 953.3 MB in the end (delta: -15.3 MB). Peak memory consumption was 441.3 MB. Max. memory is 11.5 GB. [2019-11-20 02:22:24,281 INFO L168 Benchmark]: CDTParser took 0.37 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. [2019-11-20 02:22:24,282 INFO L168 Benchmark]: CACSL2BoogieTranslator took 678.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -163.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 02:22:24,282 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.02 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. [2019-11-20 02:22:24,283 INFO L168 Benchmark]: Boogie Preprocessor took 61.96 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. [2019-11-20 02:22:24,283 INFO L168 Benchmark]: RCFGBuilder took 530.57 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: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2019-11-20 02:22:24,284 INFO L168 Benchmark]: TraceAbstraction took 9169.99 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 321.9 MB). Free memory was 1.1 GB in the beginning and 956.8 MB in the end (delta: 115.8 MB). Peak memory consumption was 437.7 MB. Max. memory is 11.5 GB. [2019-11-20 02:22:24,284 INFO L168 Benchmark]: Witness Printer took 98.05 ms. Allocated memory is still 1.5 GB. Free memory was 956.8 MB in the beginning and 953.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-11-20 02:22:24,287 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 678.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -163.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.02 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 61.96 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 530.57 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: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9169.99 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 321.9 MB). Free memory was 1.1 GB in the beginning and 956.8 MB in the end (delta: 115.8 MB). Peak memory consumption was 437.7 MB. Max. memory is 11.5 GB. * Witness Printer took 98.05 ms. Allocated memory is still 1.5 GB. Free memory was 956.8 MB in the beginning and 953.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 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 13 procedures, 89 locations, 1 error locations. Result: SAFE, OverallTime: 8.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 539 SDtfs, 766 SDslu, 1320 SDs, 0 SdLazy, 205 SolverSat, 111 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31743occurred 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: 1.9s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 16026 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...