./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe036_power.opt.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_c74e0977-b98a-4400-8f26-d07a73f8830a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c74e0977-b98a-4400-8f26-d07a73f8830a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c74e0977-b98a-4400-8f26-d07a73f8830a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c74e0977-b98a-4400-8f26-d07a73f8830a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe036_power.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c74e0977-b98a-4400-8f26-d07a73f8830a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c74e0977-b98a-4400-8f26-d07a73f8830a/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 adb48f6c8d8e02c0dd8c0a40b68d79584a308308 ................................................................................................................................................................................................................................................................................................................................................................................................................. 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 03:12:04,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:12:04,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:12:04,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:12:04,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:12:04,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:12:04,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:12:04,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:12:04,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:12:04,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:12:04,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:12:04,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:12:04,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:12:04,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:12:04,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:12:04,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:12:04,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:12:04,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:12:04,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:12:04,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:12:04,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:12:04,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:12:04,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:12:04,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:12:04,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:12:04,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:12:04,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:12:04,653 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:12:04,653 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:12:04,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:12:04,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:12:04,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:12:04,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:12:04,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:12:04,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:12:04,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:12:04,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:12:04,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:12:04,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:12:04,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:12:04,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:12:04,660 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c74e0977-b98a-4400-8f26-d07a73f8830a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 03:12:04,672 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:12:04,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:12:04,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:12:04,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:12:04,673 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 03:12:04,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:12:04,674 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 03:12:04,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:12:04,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 03:12:04,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:12:04,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 03:12:04,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 03:12:04,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 03:12:04,675 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 03:12:04,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:12:04,675 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:12:04,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 03:12:04,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:12:04,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 03:12:04,676 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 03:12:04,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 03:12:04,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 03:12:04,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:12:04,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 03:12:04,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 03:12:04,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 03:12:04,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 03:12:04,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 03:12:04,678 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_c74e0977-b98a-4400-8f26-d07a73f8830a/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 -> adb48f6c8d8e02c0dd8c0a40b68d79584a308308 [2019-11-20 03:12:04,850 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:12:04,857 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:12:04,859 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:12:04,860 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:12:04,860 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:12:04,861 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c74e0977-b98a-4400-8f26-d07a73f8830a/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe036_power.opt.i [2019-11-20 03:12:04,923 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c74e0977-b98a-4400-8f26-d07a73f8830a/bin/uautomizer/data/53435af01/645a17c0a77244fe998d246fe4cd2917/FLAGf2535df94 [2019-11-20 03:12:05,358 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:12:05,359 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c74e0977-b98a-4400-8f26-d07a73f8830a/sv-benchmarks/c/pthread-wmm/safe036_power.opt.i [2019-11-20 03:12:05,382 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c74e0977-b98a-4400-8f26-d07a73f8830a/bin/uautomizer/data/53435af01/645a17c0a77244fe998d246fe4cd2917/FLAGf2535df94 [2019-11-20 03:12:05,392 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c74e0977-b98a-4400-8f26-d07a73f8830a/bin/uautomizer/data/53435af01/645a17c0a77244fe998d246fe4cd2917 [2019-11-20 03:12:05,395 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:12:05,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:12:05,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:12:05,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:12:05,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:12:05,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:12:05" (1/1) ... [2019-11-20 03:12:05,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92a6523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:12:05, skipping insertion in model container [2019-11-20 03:12:05,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:12:05" (1/1) ... [2019-11-20 03:12:05,411 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:12:05,455 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:12:05,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:12:05,854 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:12:05,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:12:06,004 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:12:06,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:12:06 WrapperNode [2019-11-20 03:12:06,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:12:06,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:12:06,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:12:06,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:12:06,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:12:06" (1/1) ... [2019-11-20 03:12:06,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:12:06" (1/1) ... [2019-11-20 03:12:06,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:12:06,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:12:06,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:12:06,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:12:06,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:12:06" (1/1) ... [2019-11-20 03:12:06,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:12:06" (1/1) ... [2019-11-20 03:12:06,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:12:06" (1/1) ... [2019-11-20 03:12:06,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:12:06" (1/1) ... [2019-11-20 03:12:06,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:12:06" (1/1) ... [2019-11-20 03:12:06,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:12:06" (1/1) ... [2019-11-20 03:12:06,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:12:06" (1/1) ... [2019-11-20 03:12:06,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:12:06,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:12:06,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:12:06,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:12:06,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:12:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c74e0977-b98a-4400-8f26-d07a73f8830a/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 03:12:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 03:12:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-20 03:12:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 03:12:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 03:12:06,180 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-20 03:12:06,180 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-20 03:12:06,180 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-20 03:12:06,181 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-20 03:12:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-20 03:12:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:12:06,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:12:06,183 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 03:12:06,520 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:12:06,520 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 03:12:06,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:12:06 BoogieIcfgContainer [2019-11-20 03:12:06,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:12:06,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 03:12:06,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 03:12:06,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 03:12:06,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 03:12:05" (1/3) ... [2019-11-20 03:12:06,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483a2a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:12:06, skipping insertion in model container [2019-11-20 03:12:06,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:12:06" (2/3) ... [2019-11-20 03:12:06,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483a2a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:12:06, skipping insertion in model container [2019-11-20 03:12:06,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:12:06" (3/3) ... [2019-11-20 03:12:06,528 INFO L109 eAbstractionObserver]: Analyzing ICFG safe036_power.opt.i [2019-11-20 03:12:06,570 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,570 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,570 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,571 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,571 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,571 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,571 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,572 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,572 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,572 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,572 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,572 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,573 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,573 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,573 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,573 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,574 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,574 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,574 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,574 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,575 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,575 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,575 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,575 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,576 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,576 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,576 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,576 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,576 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,577 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,577 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,577 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,577 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,577 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,578 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,578 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 03:12:06,597 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 03:12:06,597 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 03:12:06,603 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 03:12:06,611 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 03:12:06,626 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 03:12:06,627 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 03:12:06,627 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 03:12:06,627 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 03:12:06,627 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 03:12:06,627 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 03:12:06,628 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 03:12:06,628 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 03:12:06,637 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 57 transitions [2019-11-20 03:12:06,831 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2367 states. [2019-11-20 03:12:06,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states. [2019-11-20 03:12:06,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 03:12:06,851 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:12:06,852 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] [2019-11-20 03:12:06,852 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:12:06,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:12:06,858 INFO L82 PathProgramCache]: Analyzing trace with hash 740546065, now seen corresponding path program 1 times [2019-11-20 03:12:06,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:12:06,866 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279419534] [2019-11-20 03:12:06,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:12:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:12:07,196 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 03:12:07,197 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279419534] [2019-11-20 03:12:07,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:12:07,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 03:12:07,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782182672] [2019-11-20 03:12:07,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 03:12:07,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:12:07,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 03:12:07,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 03:12:07,214 INFO L87 Difference]: Start difference. First operand 2367 states. Second operand 4 states. [2019-11-20 03:12:07,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:12:07,397 INFO L93 Difference]: Finished difference Result 2376 states and 5561 transitions. [2019-11-20 03:12:07,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 03:12:07,398 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2019-11-20 03:12:07,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:12:07,429 INFO L225 Difference]: With dead ends: 2376 [2019-11-20 03:12:07,429 INFO L226 Difference]: Without dead ends: 1152 [2019-11-20 03:12:07,431 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 03:12:07,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2019-11-20 03:12:07,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2019-11-20 03:12:07,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1152 states. [2019-11-20 03:12:07,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 2672 transitions. [2019-11-20 03:12:07,604 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 2672 transitions. Word has length 26 [2019-11-20 03:12:07,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:12:07,606 INFO L462 AbstractCegarLoop]: Abstraction has 1152 states and 2672 transitions. [2019-11-20 03:12:07,606 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 03:12:07,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 2672 transitions. [2019-11-20 03:12:07,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 03:12:07,611 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:12:07,612 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] [2019-11-20 03:12:07,612 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:12:07,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:12:07,613 INFO L82 PathProgramCache]: Analyzing trace with hash -587840581, now seen corresponding path program 1 times [2019-11-20 03:12:07,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:12:07,613 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419602624] [2019-11-20 03:12:07,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:12:07,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:12:07,782 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 03:12:07,782 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419602624] [2019-11-20 03:12:07,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:12:07,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 03:12:07,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104098437] [2019-11-20 03:12:07,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 03:12:07,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:12:07,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:12:07,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:12:07,785 INFO L87 Difference]: Start difference. First operand 1152 states and 2672 transitions. Second operand 5 states. [2019-11-20 03:12:07,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:12:07,884 INFO L93 Difference]: Finished difference Result 909 states and 1916 transitions. [2019-11-20 03:12:07,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 03:12:07,885 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-20 03:12:07,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:12:07,891 INFO L225 Difference]: With dead ends: 909 [2019-11-20 03:12:07,893 INFO L226 Difference]: Without dead ends: 774 [2019-11-20 03:12:07,894 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 03:12:07,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2019-11-20 03:12:07,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 774. [2019-11-20 03:12:07,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 774 states. [2019-11-20 03:12:07,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1664 transitions. [2019-11-20 03:12:07,947 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1664 transitions. Word has length 27 [2019-11-20 03:12:07,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:12:07,948 INFO L462 AbstractCegarLoop]: Abstraction has 774 states and 1664 transitions. [2019-11-20 03:12:07,948 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 03:12:07,948 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1664 transitions. [2019-11-20 03:12:07,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 03:12:07,950 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:12:07,950 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] [2019-11-20 03:12:07,951 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:12:07,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:12:07,951 INFO L82 PathProgramCache]: Analyzing trace with hash 144589538, now seen corresponding path program 1 times [2019-11-20 03:12:07,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:12:07,952 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755107530] [2019-11-20 03:12:07,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:12:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:12:08,115 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 03:12:08,116 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755107530] [2019-11-20 03:12:08,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:12:08,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 03:12:08,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581012041] [2019-11-20 03:12:08,117 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 03:12:08,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:12:08,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 03:12:08,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 03:12:08,118 INFO L87 Difference]: Start difference. First operand 774 states and 1664 transitions. Second operand 7 states. [2019-11-20 03:12:08,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:12:08,331 INFO L93 Difference]: Finished difference Result 1260 states and 2717 transitions. [2019-11-20 03:12:08,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 03:12:08,332 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2019-11-20 03:12:08,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:12:08,337 INFO L225 Difference]: With dead ends: 1260 [2019-11-20 03:12:08,338 INFO L226 Difference]: Without dead ends: 711 [2019-11-20 03:12:08,338 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 03:12:08,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2019-11-20 03:12:08,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2019-11-20 03:12:08,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 711 states. [2019-11-20 03:12:08,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 1520 transitions. [2019-11-20 03:12:08,365 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 1520 transitions. Word has length 28 [2019-11-20 03:12:08,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:12:08,366 INFO L462 AbstractCegarLoop]: Abstraction has 711 states and 1520 transitions. [2019-11-20 03:12:08,366 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 03:12:08,366 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 1520 transitions. [2019-11-20 03:12:08,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 03:12:08,370 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:12:08,370 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] [2019-11-20 03:12:08,371 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:12:08,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:12:08,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1415902932, now seen corresponding path program 2 times [2019-11-20 03:12:08,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:12:08,372 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986963429] [2019-11-20 03:12:08,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:12:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:12:08,538 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 03:12:08,538 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986963429] [2019-11-20 03:12:08,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:12:08,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 03:12:08,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816521179] [2019-11-20 03:12:08,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 03:12:08,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:12:08,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 03:12:08,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 03:12:08,540 INFO L87 Difference]: Start difference. First operand 711 states and 1520 transitions. Second operand 7 states. [2019-11-20 03:12:08,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:12:08,670 INFO L93 Difference]: Finished difference Result 549 states and 1142 transitions. [2019-11-20 03:12:08,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 03:12:08,671 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2019-11-20 03:12:08,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:12:08,671 INFO L225 Difference]: With dead ends: 549 [2019-11-20 03:12:08,671 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 03:12:08,672 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-20 03:12:08,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 03:12:08,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 03:12:08,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 03:12:08,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 03:12:08,673 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2019-11-20 03:12:08,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:12:08,673 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 03:12:08,673 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 03:12:08,673 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 03:12:08,678 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 03:12:08,681 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 03:12:08,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 03:12:08 BasicIcfg [2019-11-20 03:12:08,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 03:12:08,686 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:12:08,686 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:12:08,686 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:12:08,687 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:12:06" (3/4) ... [2019-11-20 03:12:08,691 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 03:12:08,697 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-20 03:12:08,698 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-20 03:12:08,712 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-20 03:12:08,724 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 03:12:08,724 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 03:12:08,776 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c74e0977-b98a-4400-8f26-d07a73f8830a/bin/uautomizer/witness.graphml [2019-11-20 03:12:08,776 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:12:08,778 INFO L168 Benchmark]: Toolchain (without parser) took 3381.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 940.7 MB in the beginning and 861.0 MB in the end (delta: 79.7 MB). Peak memory consumption was 203.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:12:08,778 INFO L168 Benchmark]: CDTParser took 0.13 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 03:12:08,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 608.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -142.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-20 03:12:08,780 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.28 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 03:12:08,780 INFO L168 Benchmark]: Boogie Preprocessor took 51.19 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 03:12:08,780 INFO L168 Benchmark]: RCFGBuilder took 407.29 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: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. [2019-11-20 03:12:08,781 INFO L168 Benchmark]: TraceAbstraction took 2163.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 868.1 MB in the end (delta: 185.7 MB). Peak memory consumption was 185.7 MB. Max. memory is 11.5 GB. [2019-11-20 03:12:08,781 INFO L168 Benchmark]: Witness Printer took 90.14 ms. Allocated memory is still 1.2 GB. Free memory was 868.1 MB in the beginning and 861.0 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-20 03:12:08,789 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 608.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -142.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.28 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 51.19 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 407.29 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: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2163.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 868.1 MB in the end (delta: 185.7 MB). Peak memory consumption was 185.7 MB. Max. memory is 11.5 GB. * Witness Printer took 90.14 ms. Allocated memory is still 1.2 GB. Free memory was 868.1 MB in the beginning and 861.0 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 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 9 procedures, 67 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 271 SDtfs, 290 SDslu, 668 SDs, 0 SdLazy, 100 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2367occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 7545 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...