./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe016_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_001df5d7-07dc-449c-a17d-d56292ee4b46/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_001df5d7-07dc-449c-a17d-d56292ee4b46/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_001df5d7-07dc-449c-a17d-d56292ee4b46/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_001df5d7-07dc-449c-a17d-d56292ee4b46/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_001df5d7-07dc-449c-a17d-d56292ee4b46/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_001df5d7-07dc-449c-a17d-d56292ee4b46/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 b3a0869f001de62b6943524698cd9c3b7e844f7c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:50:51,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:50:51,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:50:51,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:50:51,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:50:51,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:50:51,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:50:51,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:50:51,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:50:51,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:50:51,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:50:51,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:50:51,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:50:51,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:50:51,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:50:51,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:50:51,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:50:51,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:50:51,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:50:51,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:50:51,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:50:51,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:50:51,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:50:51,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:50:51,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:50:51,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:50:51,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:50:51,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:50:51,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:50:51,626 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:50:51,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:50:51,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:50:51,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:50:51,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:50:51,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:50:51,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:50:51,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:50:51,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:50:51,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:50:51,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:50:51,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:50:51,632 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_001df5d7-07dc-449c-a17d-d56292ee4b46/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:50:51,644 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:50:51,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:50:51,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:50:51,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:50:51,646 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:50:51,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:50:51,646 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:50:51,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:50:51,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:50:51,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:50:51,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:50:51,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:50:51,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:50:51,648 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:50:51,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:50:51,648 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:50:51,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:50:51,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:50:51,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:50:51,649 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:50:51,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:50:51,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:50:51,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:50:51,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:50:51,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:50:51,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:50:51,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:50:51,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:50:51,650 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_001df5d7-07dc-449c-a17d-d56292ee4b46/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 -> b3a0869f001de62b6943524698cd9c3b7e844f7c [2019-11-25 08:50:51,784 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:50:51,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:50:51,797 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:50:51,798 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:50:51,798 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:50:51,799 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_001df5d7-07dc-449c-a17d-d56292ee4b46/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe016_tso.opt.i [2019-11-25 08:50:51,851 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_001df5d7-07dc-449c-a17d-d56292ee4b46/bin/uautomizer/data/bee003754/83362fcba95f4a27a35fd4d0512448e2/FLAG9f48a00c9 [2019-11-25 08:50:52,315 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:50:52,316 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_001df5d7-07dc-449c-a17d-d56292ee4b46/sv-benchmarks/c/pthread-wmm/safe016_tso.opt.i [2019-11-25 08:50:52,328 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_001df5d7-07dc-449c-a17d-d56292ee4b46/bin/uautomizer/data/bee003754/83362fcba95f4a27a35fd4d0512448e2/FLAG9f48a00c9 [2019-11-25 08:50:52,817 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_001df5d7-07dc-449c-a17d-d56292ee4b46/bin/uautomizer/data/bee003754/83362fcba95f4a27a35fd4d0512448e2 [2019-11-25 08:50:52,819 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:50:52,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:50:52,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:50:52,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:50:52,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:50:52,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:52" (1/1) ... [2019-11-25 08:50:52,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de307c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:52, skipping insertion in model container [2019-11-25 08:50:52,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:52" (1/1) ... [2019-11-25 08:50:52,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:50:52,881 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:50:53,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:50:53,316 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:50:53,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:50:53,477 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:50:53,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:53 WrapperNode [2019-11-25 08:50:53,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:50:53,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:50:53,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:50:53,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:50:53,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:53" (1/1) ... [2019-11-25 08:50:53,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:53" (1/1) ... [2019-11-25 08:50:53,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:50:53,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:50:53,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:50:53,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:50:53,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:53" (1/1) ... [2019-11-25 08:50:53,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:53" (1/1) ... [2019-11-25 08:50:53,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:53" (1/1) ... [2019-11-25 08:50:53,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:53" (1/1) ... [2019-11-25 08:50:53,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:53" (1/1) ... [2019-11-25 08:50:53,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:53" (1/1) ... [2019-11-25 08:50:53,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:53" (1/1) ... [2019-11-25 08:50:53,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:50:53,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:50:53,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:50:53,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:50:53,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_001df5d7-07dc-449c-a17d-d56292ee4b46/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:50:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:50:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-25 08:50:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:50:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:50:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-25 08:50:53,680 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-25 08:50:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-25 08:50:53,680 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-25 08:50:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-25 08:50:53,680 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-25 08:50:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-11-25 08:50:53,681 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-11-25 08:50:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-25 08:50:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:50:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:50:53,683 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-25 08:50:54,146 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:50:54,147 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:50:54,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:54 BoogieIcfgContainer [2019-11-25 08:50:54,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:50:54,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:50:54,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:50:54,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:50:54,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:50:52" (1/3) ... [2019-11-25 08:50:54,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7425efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:50:54, skipping insertion in model container [2019-11-25 08:50:54,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:53" (2/3) ... [2019-11-25 08:50:54,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7425efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:50:54, skipping insertion in model container [2019-11-25 08:50:54,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:54" (3/3) ... [2019-11-25 08:50:54,154 INFO L109 eAbstractionObserver]: Analyzing ICFG safe016_tso.opt.i [2019-11-25 08:50:54,206 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,207 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,207 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,207 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,207 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,207 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,208 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,208 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,208 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,208 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,209 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,209 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,209 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,209 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,209 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,209 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,210 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,210 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,210 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,210 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,211 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,211 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,211 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,211 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,212 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,212 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,212 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,212 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,213 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,213 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,213 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,213 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,213 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,213 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,214 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,214 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,214 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,214 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,215 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,215 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,215 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,215 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,215 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,216 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,216 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,216 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,216 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,216 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,217 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,217 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,217 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,217 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,217 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,218 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,218 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,218 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,218 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,218 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,219 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,219 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,219 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,219 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,219 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,219 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,220 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,220 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,220 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,220 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,220 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,221 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,221 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,221 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:50:54,262 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:50:54,263 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:50:54,268 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:50:54,276 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:50:54,297 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:50:54,298 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:50:54,298 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:50:54,298 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:50:54,298 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:50:54,298 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:50:54,299 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:50:54,299 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:50:54,310 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 119 places, 91 transitions [2019-11-25 08:50:54,872 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5471 states. [2019-11-25 08:50:54,874 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states. [2019-11-25 08:50:54,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-25 08:50:54,906 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:50:54,907 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:54,907 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:50:54,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:54,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1291502467, now seen corresponding path program 1 times [2019-11-25 08:50:54,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:54,922 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515940856] [2019-11-25 08:50:54,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:55,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:55,305 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515940856] [2019-11-25 08:50:55,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:55,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:50:55,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359595063] [2019-11-25 08:50:55,311 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:50:55,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:50:55,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:50:55,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:50:55,328 INFO L87 Difference]: Start difference. First operand 5471 states. Second operand 4 states. [2019-11-25 08:50:55,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:55,589 INFO L93 Difference]: Finished difference Result 5708 states and 21933 transitions. [2019-11-25 08:50:55,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:50:55,592 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2019-11-25 08:50:55,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:50:55,657 INFO L225 Difference]: With dead ends: 5708 [2019-11-25 08:50:55,657 INFO L226 Difference]: Without dead ends: 2392 [2019-11-25 08:50:55,663 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:50:55,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2019-11-25 08:50:55,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2392. [2019-11-25 08:50:55,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2392 states. [2019-11-25 08:50:55,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 8936 transitions. [2019-11-25 08:50:55,866 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 8936 transitions. Word has length 34 [2019-11-25 08:50:55,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:50:55,867 INFO L462 AbstractCegarLoop]: Abstraction has 2392 states and 8936 transitions. [2019-11-25 08:50:55,867 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:50:55,867 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 8936 transitions. [2019-11-25 08:50:55,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-25 08:50:55,873 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:50:55,873 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:55,874 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:50:55,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:55,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1585012355, now seen corresponding path program 1 times [2019-11-25 08:50:55,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:55,875 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191695256] [2019-11-25 08:50:55,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:56,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:56,068 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191695256] [2019-11-25 08:50:56,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:56,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:50:56,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036144366] [2019-11-25 08:50:56,070 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:50:56,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:50:56,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:50:56,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:50:56,071 INFO L87 Difference]: Start difference. First operand 2392 states and 8936 transitions. Second operand 5 states. [2019-11-25 08:50:56,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:56,195 INFO L93 Difference]: Finished difference Result 2563 states and 9320 transitions. [2019-11-25 08:50:56,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:50:56,196 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-11-25 08:50:56,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:50:56,221 INFO L225 Difference]: With dead ends: 2563 [2019-11-25 08:50:56,221 INFO L226 Difference]: Without dead ends: 2308 [2019-11-25 08:50:56,222 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:50:56,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2019-11-25 08:50:56,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 2308. [2019-11-25 08:50:56,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2308 states. [2019-11-25 08:50:56,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2308 states to 2308 states and 8544 transitions. [2019-11-25 08:50:56,328 INFO L78 Accepts]: Start accepts. Automaton has 2308 states and 8544 transitions. Word has length 35 [2019-11-25 08:50:56,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:50:56,328 INFO L462 AbstractCegarLoop]: Abstraction has 2308 states and 8544 transitions. [2019-11-25 08:50:56,328 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:50:56,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2308 states and 8544 transitions. [2019-11-25 08:50:56,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-25 08:50:56,334 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:50:56,334 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:56,334 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:50:56,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:56,335 INFO L82 PathProgramCache]: Analyzing trace with hash -204218135, now seen corresponding path program 1 times [2019-11-25 08:50:56,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:56,335 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996534135] [2019-11-25 08:50:56,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:56,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:56,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:56,459 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996534135] [2019-11-25 08:50:56,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:56,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:50:56,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704099171] [2019-11-25 08:50:56,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:50:56,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:50:56,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:50:56,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:50:56,461 INFO L87 Difference]: Start difference. First operand 2308 states and 8544 transitions. Second operand 6 states. [2019-11-25 08:50:56,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:56,587 INFO L93 Difference]: Finished difference Result 2173 states and 7680 transitions. [2019-11-25 08:50:56,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:50:56,588 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2019-11-25 08:50:56,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:50:56,605 INFO L225 Difference]: With dead ends: 2173 [2019-11-25 08:50:56,605 INFO L226 Difference]: Without dead ends: 1930 [2019-11-25 08:50:56,606 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:50:56,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2019-11-25 08:50:56,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1930. [2019-11-25 08:50:56,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1930 states. [2019-11-25 08:50:56,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1930 states to 1930 states and 6906 transitions. [2019-11-25 08:50:56,681 INFO L78 Accepts]: Start accepts. Automaton has 1930 states and 6906 transitions. Word has length 36 [2019-11-25 08:50:56,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:50:56,683 INFO L462 AbstractCegarLoop]: Abstraction has 1930 states and 6906 transitions. [2019-11-25 08:50:56,683 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:50:56,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1930 states and 6906 transitions. [2019-11-25 08:50:56,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-25 08:50:56,692 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:50:56,692 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:56,693 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:50:56,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:56,693 INFO L82 PathProgramCache]: Analyzing trace with hash -784314106, now seen corresponding path program 1 times [2019-11-25 08:50:56,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:56,694 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404817403] [2019-11-25 08:50:56,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:56,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:56,857 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404817403] [2019-11-25 08:50:56,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:56,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:50:56,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985419783] [2019-11-25 08:50:56,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:50:56,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:50:56,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:50:56,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:50:56,858 INFO L87 Difference]: Start difference. First operand 1930 states and 6906 transitions. Second operand 7 states. [2019-11-25 08:50:57,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:57,012 INFO L93 Difference]: Finished difference Result 1363 states and 4530 transitions. [2019-11-25 08:50:57,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:50:57,012 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2019-11-25 08:50:57,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:50:57,022 INFO L225 Difference]: With dead ends: 1363 [2019-11-25 08:50:57,023 INFO L226 Difference]: Without dead ends: 1174 [2019-11-25 08:50:57,027 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:50:57,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2019-11-25 08:50:57,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1174. [2019-11-25 08:50:57,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2019-11-25 08:50:57,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 3882 transitions. [2019-11-25 08:50:57,067 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 3882 transitions. Word has length 37 [2019-11-25 08:50:57,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:50:57,069 INFO L462 AbstractCegarLoop]: Abstraction has 1174 states and 3882 transitions. [2019-11-25 08:50:57,069 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:50:57,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 3882 transitions. [2019-11-25 08:50:57,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-25 08:50:57,072 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:50:57,080 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:57,080 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:50:57,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:57,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1398658812, now seen corresponding path program 1 times [2019-11-25 08:50:57,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:57,081 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660310315] [2019-11-25 08:50:57,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:57,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:57,209 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660310315] [2019-11-25 08:50:57,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:57,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:50:57,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407020508] [2019-11-25 08:50:57,210 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:50:57,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:50:57,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:50:57,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:50:57,210 INFO L87 Difference]: Start difference. First operand 1174 states and 3882 transitions. Second operand 6 states. [2019-11-25 08:50:57,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:57,326 INFO L93 Difference]: Finished difference Result 1903 states and 6303 transitions. [2019-11-25 08:50:57,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:50:57,327 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-11-25 08:50:57,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:50:57,336 INFO L225 Difference]: With dead ends: 1903 [2019-11-25 08:50:57,336 INFO L226 Difference]: Without dead ends: 1066 [2019-11-25 08:50:57,337 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:50:57,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2019-11-25 08:50:57,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2019-11-25 08:50:57,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2019-11-25 08:50:57,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3498 transitions. [2019-11-25 08:50:57,371 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3498 transitions. Word has length 38 [2019-11-25 08:50:57,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:50:57,371 INFO L462 AbstractCegarLoop]: Abstraction has 1066 states and 3498 transitions. [2019-11-25 08:50:57,372 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:50:57,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3498 transitions. [2019-11-25 08:50:57,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-25 08:50:57,374 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:50:57,374 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:57,375 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:50:57,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:57,375 INFO L82 PathProgramCache]: Analyzing trace with hash -856614336, now seen corresponding path program 2 times [2019-11-25 08:50:57,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:57,376 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96918265] [2019-11-25 08:50:57,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:57,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:57,558 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96918265] [2019-11-25 08:50:57,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:57,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:50:57,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095009851] [2019-11-25 08:50:57,559 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:50:57,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:50:57,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:50:57,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:50:57,560 INFO L87 Difference]: Start difference. First operand 1066 states and 3498 transitions. Second operand 8 states. [2019-11-25 08:50:57,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:57,781 INFO L93 Difference]: Finished difference Result 2407 states and 8022 transitions. [2019-11-25 08:50:57,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-25 08:50:57,782 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2019-11-25 08:50:57,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:50:57,792 INFO L225 Difference]: With dead ends: 2407 [2019-11-25 08:50:57,792 INFO L226 Difference]: Without dead ends: 1177 [2019-11-25 08:50:57,792 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-11-25 08:50:57,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2019-11-25 08:50:57,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1015. [2019-11-25 08:50:57,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2019-11-25 08:50:57,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 3330 transitions. [2019-11-25 08:50:57,826 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 3330 transitions. Word has length 38 [2019-11-25 08:50:57,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:50:57,826 INFO L462 AbstractCegarLoop]: Abstraction has 1015 states and 3330 transitions. [2019-11-25 08:50:57,826 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:50:57,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 3330 transitions. [2019-11-25 08:50:57,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-25 08:50:57,829 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:50:57,829 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:57,829 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:50:57,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:57,829 INFO L82 PathProgramCache]: Analyzing trace with hash -494596252, now seen corresponding path program 3 times [2019-11-25 08:50:57,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:57,830 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537367301] [2019-11-25 08:50:57,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:57,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:57,947 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537367301] [2019-11-25 08:50:57,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:57,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:50:57,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833110381] [2019-11-25 08:50:57,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:50:57,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:50:57,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:50:57,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:50:57,949 INFO L87 Difference]: Start difference. First operand 1015 states and 3330 transitions. Second operand 7 states. [2019-11-25 08:50:58,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:58,074 INFO L93 Difference]: Finished difference Result 1537 states and 5133 transitions. [2019-11-25 08:50:58,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:50:58,074 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-11-25 08:50:58,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:50:58,084 INFO L225 Difference]: With dead ends: 1537 [2019-11-25 08:50:58,084 INFO L226 Difference]: Without dead ends: 1003 [2019-11-25 08:50:58,084 INFO L630 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 [2019-11-25 08:50:58,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2019-11-25 08:50:58,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2019-11-25 08:50:58,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1003 states. [2019-11-25 08:50:58,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 3300 transitions. [2019-11-25 08:50:58,118 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 3300 transitions. Word has length 38 [2019-11-25 08:50:58,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:50:58,122 INFO L462 AbstractCegarLoop]: Abstraction has 1003 states and 3300 transitions. [2019-11-25 08:50:58,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:50:58,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 3300 transitions. [2019-11-25 08:50:58,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-25 08:50:58,125 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:50:58,126 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:58,126 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:50:58,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:58,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1846013888, now seen corresponding path program 4 times [2019-11-25 08:50:58,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:58,130 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905570223] [2019-11-25 08:50:58,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:58,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:58,276 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905570223] [2019-11-25 08:50:58,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:58,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:50:58,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484564857] [2019-11-25 08:50:58,277 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:50:58,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:50:58,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:50:58,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:50:58,277 INFO L87 Difference]: Start difference. First operand 1003 states and 3300 transitions. Second operand 8 states. [2019-11-25 08:50:58,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:58,403 INFO L93 Difference]: Finished difference Result 1624 states and 5406 transitions. [2019-11-25 08:50:58,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-25 08:50:58,404 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2019-11-25 08:50:58,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:50:58,412 INFO L225 Difference]: With dead ends: 1624 [2019-11-25 08:50:58,412 INFO L226 Difference]: Without dead ends: 931 [2019-11-25 08:50:58,413 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:50:58,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2019-11-25 08:50:58,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 931. [2019-11-25 08:50:58,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2019-11-25 08:50:58,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 3054 transitions. [2019-11-25 08:50:58,441 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 3054 transitions. Word has length 38 [2019-11-25 08:50:58,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:50:58,441 INFO L462 AbstractCegarLoop]: Abstraction has 931 states and 3054 transitions. [2019-11-25 08:50:58,442 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:50:58,442 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 3054 transitions. [2019-11-25 08:50:58,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-25 08:50:58,444 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:50:58,444 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:58,444 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:50:58,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:58,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1207360626, now seen corresponding path program 5 times [2019-11-25 08:50:58,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:58,445 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760940284] [2019-11-25 08:50:58,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:58,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:58,566 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760940284] [2019-11-25 08:50:58,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:58,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:50:58,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597445920] [2019-11-25 08:50:58,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:50:58,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:50:58,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:50:58,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:50:58,567 INFO L87 Difference]: Start difference. First operand 931 states and 3054 transitions. Second operand 7 states. [2019-11-25 08:50:58,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:58,652 INFO L93 Difference]: Finished difference Result 769 states and 2460 transitions. [2019-11-25 08:50:58,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:50:58,653 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-11-25 08:50:58,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:50:58,653 INFO L225 Difference]: With dead ends: 769 [2019-11-25 08:50:58,653 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:50:58,653 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:50:58,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:50:58,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:50:58,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:50:58,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:50:58,654 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2019-11-25 08:50:58,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:50:58,654 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:50:58,654 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:50:58,655 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:50:58,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:50:58,657 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:50:58,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:50:58 BasicIcfg [2019-11-25 08:50:58,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:50:58,661 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:50:58,661 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:50:58,661 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:50:58,661 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:54" (3/4) ... [2019-11-25 08:50:58,666 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:50:58,688 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-25 08:50:58,695 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-25 08:50:58,695 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-25 08:50:58,695 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2019-11-25 08:50:58,703 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-25 08:50:58,703 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:50:58,703 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:50:58,752 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_001df5d7-07dc-449c-a17d-d56292ee4b46/bin/uautomizer/witness.graphml [2019-11-25 08:50:58,752 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:50:58,756 INFO L168 Benchmark]: Toolchain (without parser) took 5935.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 213.4 MB). Free memory was 943.4 MB in the beginning and 983.5 MB in the end (delta: -40.2 MB). Peak memory consumption was 173.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:58,756 INFO L168 Benchmark]: CDTParser took 0.16 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. [2019-11-25 08:50:58,757 INFO L168 Benchmark]: CACSL2BoogieTranslator took 656.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -159.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:58,757 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:50:58,757 INFO L168 Benchmark]: Boogie Preprocessor took 52.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:58,758 INFO L168 Benchmark]: RCFGBuilder took 540.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:58,759 INFO L168 Benchmark]: TraceAbstraction took 4511.36 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.5 MB). Free memory was 1.1 GB in the beginning and 985.8 MB in the end (delta: 89.7 MB). Peak memory consumption was 166.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:58,759 INFO L168 Benchmark]: Witness Printer took 93.42 ms. Allocated memory is still 1.2 GB. Free memory was 985.8 MB in the beginning and 983.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:58,762 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 656.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -159.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.72 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 52.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 540.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4511.36 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.5 MB). Free memory was 1.1 GB in the beginning and 985.8 MB in the end (delta: 89.7 MB). Peak memory consumption was 166.2 MB. Max. memory is 11.5 GB. * Witness Printer took 93.42 ms. Allocated memory is still 1.2 GB. Free memory was 985.8 MB in the beginning and 983.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 17 procedures, 111 locations, 1 error locations. Result: SAFE, OverallTime: 4.3s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 558 SDtfs, 897 SDslu, 1675 SDs, 0 SdLazy, 217 SolverSat, 99 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5471occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 162 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 332 NumberOfCodeBlocks, 332 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 33285 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...