./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe000_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_797d9cbb-5f67-4642-93b6-b29bea4ae1a8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_797d9cbb-5f67-4642-93b6-b29bea4ae1a8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_797d9cbb-5f67-4642-93b6-b29bea4ae1a8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_797d9cbb-5f67-4642-93b6-b29bea4ae1a8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe000_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_797d9cbb-5f67-4642-93b6-b29bea4ae1a8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_797d9cbb-5f67-4642-93b6-b29bea4ae1a8/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 df496559a91a2db4243d0588658a413b8c876321 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:56:01,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:56:01,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:56:01,994 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:56:01,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:56:01,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:56:01,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:56:02,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:56:02,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:56:02,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:56:02,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:56:02,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:56:02,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:56:02,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:56:02,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:56:02,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:56:02,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:56:02,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:56:02,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:56:02,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:56:02,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:56:02,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:56:02,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:56:02,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:56:02,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:56:02,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:56:02,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:56:02,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:56:02,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:56:02,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:56:02,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:56:02,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:56:02,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:56:02,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:56:02,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:56:02,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:56:02,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:56:02,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:56:02,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:56:02,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:56:02,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:56:02,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_797d9cbb-5f67-4642-93b6-b29bea4ae1a8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 21:56:02,079 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:56:02,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:56:02,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:56:02,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:56:02,081 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:56:02,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:56:02,081 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:56:02,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:56:02,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:56:02,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:56:02,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:56:02,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:56:02,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:56:02,083 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:56:02,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:56:02,083 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:56:02,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:56:02,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:56:02,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:56:02,084 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:56:02,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:56:02,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:56:02,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:56:02,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:56:02,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:56:02,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:56:02,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:56:02,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:56:02,086 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_797d9cbb-5f67-4642-93b6-b29bea4ae1a8/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 -> df496559a91a2db4243d0588658a413b8c876321 [2019-11-15 21:56:02,129 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:56:02,151 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:56:02,153 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:56:02,154 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:56:02,155 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:56:02,156 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_797d9cbb-5f67-4642-93b6-b29bea4ae1a8/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe000_pso.opt.i [2019-11-15 21:56:02,215 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_797d9cbb-5f67-4642-93b6-b29bea4ae1a8/bin/uautomizer/data/f95e82944/0217b65a1bd744e4893612998ba87ce5/FLAGf2c2206bf [2019-11-15 21:56:02,682 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:56:02,686 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_797d9cbb-5f67-4642-93b6-b29bea4ae1a8/sv-benchmarks/c/pthread-wmm/safe000_pso.opt.i [2019-11-15 21:56:02,703 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_797d9cbb-5f67-4642-93b6-b29bea4ae1a8/bin/uautomizer/data/f95e82944/0217b65a1bd744e4893612998ba87ce5/FLAGf2c2206bf [2019-11-15 21:56:02,957 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_797d9cbb-5f67-4642-93b6-b29bea4ae1a8/bin/uautomizer/data/f95e82944/0217b65a1bd744e4893612998ba87ce5 [2019-11-15 21:56:02,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:56:02,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:56:02,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:56:02,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:56:02,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:56:02,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:56:02" (1/1) ... [2019-11-15 21:56:02,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58cec78a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:02, skipping insertion in model container [2019-11-15 21:56:02,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:56:02" (1/1) ... [2019-11-15 21:56:02,989 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:56:03,057 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:56:03,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:56:03,618 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:56:03,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:56:03,741 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:56:03,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:03 WrapperNode [2019-11-15 21:56:03,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:56:03,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:56:03,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:56:03,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:56:03,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:03" (1/1) ... [2019-11-15 21:56:03,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:03" (1/1) ... [2019-11-15 21:56:03,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:56:03,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:56:03,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:56:03,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:56:03,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:03" (1/1) ... [2019-11-15 21:56:03,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:03" (1/1) ... [2019-11-15 21:56:03,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:03" (1/1) ... [2019-11-15 21:56:03,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:03" (1/1) ... [2019-11-15 21:56:03,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:03" (1/1) ... [2019-11-15 21:56:03,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:03" (1/1) ... [2019-11-15 21:56:03,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:03" (1/1) ... [2019-11-15 21:56:03,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:56:03,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:56:03,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:56:03,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:56:03,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_797d9cbb-5f67-4642-93b6-b29bea4ae1a8/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 [2019-11-15 21:56:03,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 21:56:03,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-15 21:56:03,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 21:56:03,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 21:56:03,896 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-15 21:56:03,896 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-15 21:56:03,896 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-15 21:56:03,896 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-15 21:56:03,896 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-15 21:56:03,896 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-15 21:56:03,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-15 21:56:03,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:56:03,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:56:03,900 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-15 21:56:04,212 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:56:04,212 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 21:56:04,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:56:04 BoogieIcfgContainer [2019-11-15 21:56:04,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:56:04,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:56:04,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:56:04,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:56:04,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:56:02" (1/3) ... [2019-11-15 21:56:04,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31eab8a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:56:04, skipping insertion in model container [2019-11-15 21:56:04,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:56:03" (2/3) ... [2019-11-15 21:56:04,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31eab8a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:56:04, skipping insertion in model container [2019-11-15 21:56:04,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:56:04" (3/3) ... [2019-11-15 21:56:04,224 INFO L109 eAbstractionObserver]: Analyzing ICFG safe000_pso.opt.i [2019-11-15 21:56:04,265 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:56:04,265 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:56:04,266 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:56:04,266 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:56:04,267 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:56:04,267 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:56:04,267 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:56:04,268 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:56:04,268 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:56:04,268 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:56:04,269 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:56:04,269 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:56:04,269 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:56:04,269 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:56:04,269 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:56:04,270 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:56:04,270 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:56:04,270 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:56:04,304 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 21:56:04,305 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:56:04,312 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 21:56:04,321 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 21:56:04,340 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:56:04,340 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:56:04,340 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:56:04,341 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:56:04,341 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:56:04,341 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:56:04,341 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:56:04,341 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:56:04,351 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 50 transitions [2019-11-15 21:56:04,456 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-11-15 21:56:04,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-11-15 21:56:04,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 21:56:04,474 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:56:04,475 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:56:04,477 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:56:04,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:56:04,483 INFO L82 PathProgramCache]: Analyzing trace with hash 720223975, now seen corresponding path program 1 times [2019-11-15 21:56:04,493 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:56:04,493 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883094758] [2019-11-15 21:56:04,493 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:04,494 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:04,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:56:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:56:04,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:56:04,910 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883094758] [2019-11-15 21:56:04,911 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:56:04,912 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 21:56:04,912 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647142693] [2019-11-15 21:56:04,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:56:04,916 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:56:04,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:56:04,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:56:04,931 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-11-15 21:56:05,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:56:05,062 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-11-15 21:56:05,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 21:56:05,064 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-15 21:56:05,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:56:05,094 INFO L225 Difference]: With dead ends: 1294 [2019-11-15 21:56:05,094 INFO L226 Difference]: Without dead ends: 600 [2019-11-15 21:56:05,096 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:56:05,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-11-15 21:56:05,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-11-15 21:56:05,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-11-15 21:56:05,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-11-15 21:56:05,203 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-11-15 21:56:05,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:56:05,204 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-11-15 21:56:05,204 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:56:05,204 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-11-15 21:56:05,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 21:56:05,207 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:56:05,208 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:56:05,208 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:56:05,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:56:05,208 INFO L82 PathProgramCache]: Analyzing trace with hash 524455325, now seen corresponding path program 1 times [2019-11-15 21:56:05,209 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:56:05,209 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779637159] [2019-11-15 21:56:05,209 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:05,209 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:05,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:56:05,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:56:05,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:56:05,344 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779637159] [2019-11-15 21:56:05,344 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:56:05,344 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 21:56:05,345 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391220142] [2019-11-15 21:56:05,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 21:56:05,347 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:56:05,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 21:56:05,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:56:05,347 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-11-15 21:56:05,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:56:05,443 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-11-15 21:56:05,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:56:05,445 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-15 21:56:05,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:56:05,458 INFO L225 Difference]: With dead ends: 600 [2019-11-15 21:56:05,458 INFO L226 Difference]: Without dead ends: 537 [2019-11-15 21:56:05,463 INFO L600 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 [2019-11-15 21:56:05,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-11-15 21:56:05,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-11-15 21:56:05,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-11-15 21:56:05,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-11-15 21:56:05,518 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-11-15 21:56:05,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:56:05,519 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-11-15 21:56:05,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 21:56:05,519 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-11-15 21:56:05,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-15 21:56:05,524 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:56:05,524 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:56:05,524 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:56:05,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:56:05,525 INFO L82 PathProgramCache]: Analyzing trace with hash -742737747, now seen corresponding path program 1 times [2019-11-15 21:56:05,526 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:56:05,526 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117940533] [2019-11-15 21:56:05,526 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:05,527 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:05,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:56:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:56:05,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:56:05,651 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117940533] [2019-11-15 21:56:05,652 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:56:05,652 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 21:56:05,652 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755328845] [2019-11-15 21:56:05,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:56:05,653 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:56:05,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:56:05,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:56:05,653 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-11-15 21:56:05,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:56:05,744 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-11-15 21:56:05,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 21:56:05,747 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-15 21:56:05,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:56:05,751 INFO L225 Difference]: With dead ends: 402 [2019-11-15 21:56:05,751 INFO L226 Difference]: Without dead ends: 348 [2019-11-15 21:56:05,751 INFO L600 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 [2019-11-15 21:56:05,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-11-15 21:56:05,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-11-15 21:56:05,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-15 21:56:05,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-11-15 21:56:05,766 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-11-15 21:56:05,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:56:05,767 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-11-15 21:56:05,767 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:56:05,767 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-11-15 21:56:05,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 21:56:05,770 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:56:05,770 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:56:05,770 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:56:05,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:56:05,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1990486272, now seen corresponding path program 1 times [2019-11-15 21:56:05,771 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:56:05,771 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711878464] [2019-11-15 21:56:05,771 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:05,772 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:05,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:56:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:56:05,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:56:05,969 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711878464] [2019-11-15 21:56:05,970 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:56:05,970 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 21:56:05,970 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142508082] [2019-11-15 21:56:05,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:56:05,971 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:56:05,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:56:05,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:56:05,972 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 6 states. [2019-11-15 21:56:06,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:56:06,160 INFO L93 Difference]: Finished difference Result 564 states and 1499 transitions. [2019-11-15 21:56:06,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:56:06,161 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-15 21:56:06,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:56:06,166 INFO L225 Difference]: With dead ends: 564 [2019-11-15 21:56:06,166 INFO L226 Difference]: Without dead ends: 393 [2019-11-15 21:56:06,168 INFO L600 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 [2019-11-15 21:56:06,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2019-11-15 21:56:06,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 339. [2019-11-15 21:56:06,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2019-11-15 21:56:06,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 887 transitions. [2019-11-15 21:56:06,184 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 887 transitions. Word has length 33 [2019-11-15 21:56:06,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:56:06,184 INFO L462 AbstractCegarLoop]: Abstraction has 339 states and 887 transitions. [2019-11-15 21:56:06,184 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:56:06,185 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 887 transitions. [2019-11-15 21:56:06,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 21:56:06,187 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:56:06,187 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:56:06,188 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:56:06,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:56:06,188 INFO L82 PathProgramCache]: Analyzing trace with hash -243621222, now seen corresponding path program 2 times [2019-11-15 21:56:06,189 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:56:06,189 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987961333] [2019-11-15 21:56:06,189 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:06,189 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:06,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:56:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:56:06,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:56:06,370 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987961333] [2019-11-15 21:56:06,370 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:56:06,370 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 21:56:06,373 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478139384] [2019-11-15 21:56:06,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 21:56:06,374 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:56:06,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 21:56:06,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:56:06,375 INFO L87 Difference]: Start difference. First operand 339 states and 887 transitions. Second operand 7 states. [2019-11-15 21:56:06,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:56:06,524 INFO L93 Difference]: Finished difference Result 546 states and 1451 transitions. [2019-11-15 21:56:06,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 21:56:06,525 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-15 21:56:06,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:56:06,528 INFO L225 Difference]: With dead ends: 546 [2019-11-15 21:56:06,528 INFO L226 Difference]: Without dead ends: 312 [2019-11-15 21:56:06,529 INFO L600 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 [2019-11-15 21:56:06,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2019-11-15 21:56:06,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2019-11-15 21:56:06,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2019-11-15 21:56:06,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 821 transitions. [2019-11-15 21:56:06,545 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 821 transitions. Word has length 33 [2019-11-15 21:56:06,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:56:06,547 INFO L462 AbstractCegarLoop]: Abstraction has 312 states and 821 transitions. [2019-11-15 21:56:06,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 21:56:06,551 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 821 transitions. [2019-11-15 21:56:06,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 21:56:06,553 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:56:06,553 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:56:06,553 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:56:06,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:56:06,555 INFO L82 PathProgramCache]: Analyzing trace with hash -534114586, now seen corresponding path program 3 times [2019-11-15 21:56:06,555 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:56:06,555 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610417293] [2019-11-15 21:56:06,555 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:06,556 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:06,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:56:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:56:06,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:56:06,723 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610417293] [2019-11-15 21:56:06,723 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:56:06,723 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 21:56:06,723 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593325787] [2019-11-15 21:56:06,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 21:56:06,724 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:56:06,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 21:56:06,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:56:06,724 INFO L87 Difference]: Start difference. First operand 312 states and 821 transitions. Second operand 7 states. [2019-11-15 21:56:06,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:56:06,883 INFO L93 Difference]: Finished difference Result 483 states and 1301 transitions. [2019-11-15 21:56:06,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 21:56:06,884 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-15 21:56:06,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:56:06,887 INFO L225 Difference]: With dead ends: 483 [2019-11-15 21:56:06,887 INFO L226 Difference]: Without dead ends: 309 [2019-11-15 21:56:06,887 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-11-15 21:56:06,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2019-11-15 21:56:06,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2019-11-15 21:56:06,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2019-11-15 21:56:06,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 815 transitions. [2019-11-15 21:56:06,898 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 815 transitions. Word has length 33 [2019-11-15 21:56:06,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:56:06,898 INFO L462 AbstractCegarLoop]: Abstraction has 309 states and 815 transitions. [2019-11-15 21:56:06,898 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 21:56:06,899 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 815 transitions. [2019-11-15 21:56:06,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 21:56:06,900 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:56:06,900 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:56:06,900 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:56:06,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:56:06,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1071970164, now seen corresponding path program 4 times [2019-11-15 21:56:06,901 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:56:06,901 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745169853] [2019-11-15 21:56:06,901 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:06,901 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:56:06,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:56:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:56:07,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:56:07,045 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745169853] [2019-11-15 21:56:07,046 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:56:07,046 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 21:56:07,046 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933323614] [2019-11-15 21:56:07,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 21:56:07,047 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:56:07,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 21:56:07,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-15 21:56:07,047 INFO L87 Difference]: Start difference. First operand 309 states and 815 transitions. Second operand 8 states. [2019-11-15 21:56:07,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:56:07,158 INFO L93 Difference]: Finished difference Result 255 states and 653 transitions. [2019-11-15 21:56:07,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 21:56:07,158 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-11-15 21:56:07,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:56:07,159 INFO L225 Difference]: With dead ends: 255 [2019-11-15 21:56:07,159 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 21:56:07,159 INFO L600 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 [2019-11-15 21:56:07,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 21:56:07,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 21:56:07,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 21:56:07,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 21:56:07,160 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-11-15 21:56:07,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:56:07,160 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:56:07,161 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 21:56:07,161 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 21:56:07,161 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 21:56:07,164 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 21:56:07,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:56:07 BasicIcfg [2019-11-15 21:56:07,166 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:56:07,166 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:56:07,166 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:56:07,167 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:56:07,168 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:56:04" (3/4) ... [2019-11-15 21:56:07,171 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 21:56:07,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-15 21:56:07,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-15 21:56:07,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-15 21:56:07,186 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-15 21:56:07,186 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 21:56:07,261 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_797d9cbb-5f67-4642-93b6-b29bea4ae1a8/bin/uautomizer/witness.graphml [2019-11-15 21:56:07,261 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:56:07,263 INFO L168 Benchmark]: Toolchain (without parser) took 4301.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -141.7 MB). Peak memory consumption was 4.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:56:07,264 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:56:07,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-15 21:56:07,267 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.98 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. [2019-11-15 21:56:07,267 INFO L168 Benchmark]: Boogie Preprocessor took 26.85 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. [2019-11-15 21:56:07,268 INFO L168 Benchmark]: RCFGBuilder took 392.14 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:56:07,273 INFO L168 Benchmark]: TraceAbstraction took 2951.49 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: 464.7 kB). Peak memory consumption was 464.7 kB. Max. memory is 11.5 GB. [2019-11-15 21:56:07,273 INFO L168 Benchmark]: Witness Printer took 94.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-15 21:56:07,275 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 774.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.98 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 26.85 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. * RCFGBuilder took 392.14 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2951.49 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: 464.7 kB). Peak memory consumption was 464.7 kB. Max. memory is 11.5 GB. * Witness Printer took 94.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * 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 7 procedures, 65 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 332 SDtfs, 426 SDslu, 861 SDs, 0 SdLazy, 147 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 54 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 21134 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...