./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7947ee3e-9514-478c-9548-aa43dce0dfcc/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7947ee3e-9514-478c-9548-aa43dce0dfcc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7947ee3e-9514-478c-9548-aa43dce0dfcc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7947ee3e-9514-478c-9548-aa43dce0dfcc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7947ee3e-9514-478c-9548-aa43dce0dfcc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7947ee3e-9514-478c-9548-aa43dce0dfcc/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e252dc11a493b86cf95223e578e74371b6c05709 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:22:23,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:22:23,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:22:23,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:22:23,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:22:23,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:22:23,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:22:23,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:22:23,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:22:23,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:22:23,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:22:23,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:22:23,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:22:23,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:22:23,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:22:23,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:22:23,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:22:23,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:22:23,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:22:23,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:22:23,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:22:23,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:22:23,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:22:23,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:22:23,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:22:23,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:22:23,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:22:23,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:22:23,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:22:23,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:22:23,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:22:23,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:22:23,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:22:23,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:22:23,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:22:23,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:22:23,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:22:23,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:22:23,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:22:23,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:22:23,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:22:23,626 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7947ee3e-9514-478c-9548-aa43dce0dfcc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:22:23,668 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:22:23,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:22:23,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:22:23,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:22:23,670 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:22:23,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:22:23,671 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:22:23,671 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:22:23,671 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:22:23,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:22:23,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:22:23,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:22:23,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:22:23,673 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:22:23,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:22:23,673 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:22:23,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:22:23,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:22:23,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:22:23,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:22:23,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:22:23,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:22:23,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:22:23,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:22:23,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:22:23,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:22:23,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:22:23,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:22:23,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:22:23,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_7947ee3e-9514-478c-9548-aa43dce0dfcc/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7947ee3e-9514-478c-9548-aa43dce0dfcc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e252dc11a493b86cf95223e578e74371b6c05709 [2020-11-30 01:22:23,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:22:23,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:22:23,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:22:23,969 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:22:23,970 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:22:23,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7947ee3e-9514-478c-9548-aa43dce0dfcc/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc.i [2020-11-30 01:22:24,082 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7947ee3e-9514-478c-9548-aa43dce0dfcc/bin/uautomizer/data/eaaf06aaa/91af86c0459d4643ac8e4387922bb9a1/FLAGbc19a9dc0 [2020-11-30 01:22:24,693 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:22:24,694 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7947ee3e-9514-478c-9548-aa43dce0dfcc/sv-benchmarks/c/pthread-wmm/safe027_pso.oepc.i [2020-11-30 01:22:24,721 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7947ee3e-9514-478c-9548-aa43dce0dfcc/bin/uautomizer/data/eaaf06aaa/91af86c0459d4643ac8e4387922bb9a1/FLAGbc19a9dc0 [2020-11-30 01:22:24,995 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7947ee3e-9514-478c-9548-aa43dce0dfcc/bin/uautomizer/data/eaaf06aaa/91af86c0459d4643ac8e4387922bb9a1 [2020-11-30 01:22:24,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:22:25,000 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:22:25,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:22:25,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:22:25,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:22:25,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:22:24" (1/1) ... [2020-11-30 01:22:25,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e7bbd3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:25, skipping insertion in model container [2020-11-30 01:22:25,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:22:24" (1/1) ... [2020-11-30 01:22:25,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:22:25,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:22:25,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:22:25,449 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:22:25,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:22:25,577 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:22:25,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:25 WrapperNode [2020-11-30 01:22:25,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:22:25,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:22:25,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:22:25,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:22:25,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:25" (1/1) ... [2020-11-30 01:22:25,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:25" (1/1) ... [2020-11-30 01:22:25,626 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:22:25,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:22:25,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:22:25,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:22:25,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:25" (1/1) ... [2020-11-30 01:22:25,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:25" (1/1) ... [2020-11-30 01:22:25,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:25" (1/1) ... [2020-11-30 01:22:25,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:25" (1/1) ... [2020-11-30 01:22:25,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:25" (1/1) ... [2020-11-30 01:22:25,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:25" (1/1) ... [2020-11-30 01:22:25,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:25" (1/1) ... [2020-11-30 01:22:25,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:22:25,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:22:25,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:22:25,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:22:25,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7947ee3e-9514-478c-9548-aa43dce0dfcc/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 [2020-11-30 01:22:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:22:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-30 01:22:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:22:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:22:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-30 01:22:25,737 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-30 01:22:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-30 01:22:25,738 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-30 01:22:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-30 01:22:25,739 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-30 01:22:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-30 01:22:25,740 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-30 01:22:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:22:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-30 01:22:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:22:25,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:22:25,743 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-30 01:22:26,253 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:22:26,253 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-30 01:22:26,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:22:26 BoogieIcfgContainer [2020-11-30 01:22:26,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:22:26,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:22:26,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:22:26,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:22:26,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:22:24" (1/3) ... [2020-11-30 01:22:26,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2107acd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:22:26, skipping insertion in model container [2020-11-30 01:22:26,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:22:25" (2/3) ... [2020-11-30 01:22:26,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2107acd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:22:26, skipping insertion in model container [2020-11-30 01:22:26,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:22:26" (3/3) ... [2020-11-30 01:22:26,272 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2020-11-30 01:22:26,283 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-30 01:22:26,284 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:22:26,288 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:22:26,288 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-30 01:22:26,315 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,316 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,316 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,316 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,316 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,316 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,317 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,317 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,317 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,317 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,318 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,318 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,318 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,319 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,319 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,319 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,319 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,319 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,321 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,321 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,321 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,321 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,321 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,322 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,324 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,324 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,324 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,325 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,331 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,331 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,331 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,332 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,341 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,341 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,341 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,341 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,355 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,356 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,356 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,356 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:22:26,361 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-30 01:22:26,375 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-30 01:22:26,409 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:22:26,412 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:22:26,412 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:22:26,413 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:22:26,413 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:22:26,413 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:22:26,413 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:22:26,413 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:22:26,428 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-30 01:22:26,431 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 91 transitions, 202 flow [2020-11-30 01:22:26,434 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 91 transitions, 202 flow [2020-11-30 01:22:26,436 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 101 places, 91 transitions, 202 flow [2020-11-30 01:22:26,493 INFO L129 PetriNetUnfolder]: 3/87 cut-off events. [2020-11-30 01:22:26,494 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-30 01:22:26,498 INFO L80 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 87 events. 3/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-11-30 01:22:26,502 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-11-30 01:22:29,439 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-30 01:22:29,575 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-30 01:22:29,809 INFO L131 LiptonReduction]: Checked pairs total: 3854 [2020-11-30 01:22:29,809 INFO L133 LiptonReduction]: Total number of compositions: 80 [2020-11-30 01:22:29,815 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-11-30 01:22:29,887 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-11-30 01:22:29,889 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-11-30 01:22:29,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:22:29,898 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:22:29,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:22:29,900 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:22:29,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:22:29,906 INFO L82 PathProgramCache]: Analyzing trace with hash -709438342, now seen corresponding path program 1 times [2020-11-30 01:22:29,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:22:29,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28383913] [2020-11-30 01:22:29,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:22:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:22:30,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:22:30,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28383913] [2020-11-30 01:22:30,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:22:30,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:22:30,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231948649] [2020-11-30 01:22:30,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:22:30,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:22:30,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:22:30,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:22:30,223 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-11-30 01:22:30,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:22:30,318 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-11-30 01:22:30,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:22:30,320 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-30 01:22:30,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:22:30,346 INFO L225 Difference]: With dead ends: 670 [2020-11-30 01:22:30,347 INFO L226 Difference]: Without dead ends: 526 [2020-11-30 01:22:30,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:22:30,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-11-30 01:22:30,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-11-30 01:22:30,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-11-30 01:22:30,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-11-30 01:22:30,460 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-11-30 01:22:30,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:22:30,462 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-11-30 01:22:30,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:22:30,462 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-11-30 01:22:30,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:22:30,466 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:22:30,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:22:30,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:22:30,467 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:22:30,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:22:30,468 INFO L82 PathProgramCache]: Analyzing trace with hash -534620391, now seen corresponding path program 1 times [2020-11-30 01:22:30,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:22:30,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206523262] [2020-11-30 01:22:30,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:22:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:22:30,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:22:30,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206523262] [2020-11-30 01:22:30,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:22:30,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:22:30,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149506845] [2020-11-30 01:22:30,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:22:30,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:22:30,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:22:30,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:22:30,557 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-11-30 01:22:30,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:22:30,685 INFO L93 Difference]: Finished difference Result 682 states and 2180 transitions. [2020-11-30 01:22:30,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:22:30,686 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-30 01:22:30,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:22:30,699 INFO L225 Difference]: With dead ends: 682 [2020-11-30 01:22:30,700 INFO L226 Difference]: Without dead ends: 394 [2020-11-30 01:22:30,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:22:30,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-11-30 01:22:30,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-11-30 01:22:30,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-11-30 01:22:30,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1224 transitions. [2020-11-30 01:22:30,739 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1224 transitions. Word has length 11 [2020-11-30 01:22:30,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:22:30,740 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1224 transitions. [2020-11-30 01:22:30,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:22:30,740 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1224 transitions. [2020-11-30 01:22:30,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:22:30,743 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:22:30,744 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:22:30,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:22:30,744 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:22:30,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:22:30,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1129499006, now seen corresponding path program 1 times [2020-11-30 01:22:30,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:22:30,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360431830] [2020-11-30 01:22:30,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:22:30,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:22:30,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:22:30,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360431830] [2020-11-30 01:22:30,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:22:30,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:22:30,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590051897] [2020-11-30 01:22:30,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:22:30,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:22:30,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:22:30,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:22:30,844 INFO L87 Difference]: Start difference. First operand 394 states and 1224 transitions. Second operand 3 states. [2020-11-30 01:22:30,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:22:30,866 INFO L93 Difference]: Finished difference Result 376 states and 1155 transitions. [2020-11-30 01:22:30,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:22:30,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-30 01:22:30,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:22:30,872 INFO L225 Difference]: With dead ends: 376 [2020-11-30 01:22:30,872 INFO L226 Difference]: Without dead ends: 376 [2020-11-30 01:22:30,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:22:30,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2020-11-30 01:22:30,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2020-11-30 01:22:30,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-11-30 01:22:30,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 1155 transitions. [2020-11-30 01:22:30,899 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 1155 transitions. Word has length 12 [2020-11-30 01:22:30,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:22:30,900 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 1155 transitions. [2020-11-30 01:22:30,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:22:30,900 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 1155 transitions. [2020-11-30 01:22:30,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:22:30,904 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:22:30,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:22:30,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:22:30,905 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:22:30,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:22:30,906 INFO L82 PathProgramCache]: Analyzing trace with hash -951035328, now seen corresponding path program 1 times [2020-11-30 01:22:30,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:22:30,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985011611] [2020-11-30 01:22:30,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:22:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:22:31,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:22:31,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985011611] [2020-11-30 01:22:31,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:22:31,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:22:31,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591335414] [2020-11-30 01:22:31,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:22:31,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:22:31,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:22:31,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:22:31,020 INFO L87 Difference]: Start difference. First operand 376 states and 1155 transitions. Second operand 4 states. [2020-11-30 01:22:31,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:22:31,059 INFO L93 Difference]: Finished difference Result 466 states and 1398 transitions. [2020-11-30 01:22:31,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:22:31,060 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-30 01:22:31,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:22:31,064 INFO L225 Difference]: With dead ends: 466 [2020-11-30 01:22:31,065 INFO L226 Difference]: Without dead ends: 226 [2020-11-30 01:22:31,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:22:31,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-11-30 01:22:31,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-11-30 01:22:31,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-11-30 01:22:31,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 651 transitions. [2020-11-30 01:22:31,078 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 651 transitions. Word has length 13 [2020-11-30 01:22:31,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:22:31,078 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 651 transitions. [2020-11-30 01:22:31,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:22:31,079 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 651 transitions. [2020-11-30 01:22:31,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 01:22:31,083 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:22:31,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:22:31,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:22:31,088 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:22:31,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:22:31,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1524641156, now seen corresponding path program 1 times [2020-11-30 01:22:31,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:22:31,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829315941] [2020-11-30 01:22:31,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:22:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:22:31,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:22:31,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829315941] [2020-11-30 01:22:31,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:22:31,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:22:31,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108333558] [2020-11-30 01:22:31,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:22:31,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:22:31,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:22:31,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:22:31,271 INFO L87 Difference]: Start difference. First operand 226 states and 651 transitions. Second operand 4 states. [2020-11-30 01:22:31,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:22:31,320 INFO L93 Difference]: Finished difference Result 287 states and 773 transitions. [2020-11-30 01:22:31,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:22:31,321 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-30 01:22:31,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:22:31,323 INFO L225 Difference]: With dead ends: 287 [2020-11-30 01:22:31,323 INFO L226 Difference]: Without dead ends: 206 [2020-11-30 01:22:31,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:22:31,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-11-30 01:22:31,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-11-30 01:22:31,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-11-30 01:22:31,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 559 transitions. [2020-11-30 01:22:31,333 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 559 transitions. Word has length 14 [2020-11-30 01:22:31,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:22:31,334 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 559 transitions. [2020-11-30 01:22:31,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:22:31,334 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 559 transitions. [2020-11-30 01:22:31,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:22:31,336 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:22:31,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:22:31,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:22:31,336 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:22:31,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:22:31,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1148644205, now seen corresponding path program 1 times [2020-11-30 01:22:31,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:22:31,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307431340] [2020-11-30 01:22:31,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:22:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:22:31,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:22:31,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307431340] [2020-11-30 01:22:31,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:22:31,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:22:31,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287025358] [2020-11-30 01:22:31,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:22:31,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:22:31,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:22:31,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:22:31,467 INFO L87 Difference]: Start difference. First operand 206 states and 559 transitions. Second operand 5 states. [2020-11-30 01:22:31,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:22:31,584 INFO L93 Difference]: Finished difference Result 227 states and 565 transitions. [2020-11-30 01:22:31,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:22:31,590 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-11-30 01:22:31,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:22:31,592 INFO L225 Difference]: With dead ends: 227 [2020-11-30 01:22:31,592 INFO L226 Difference]: Without dead ends: 162 [2020-11-30 01:22:31,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:22:31,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-11-30 01:22:31,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-11-30 01:22:31,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-11-30 01:22:31,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 391 transitions. [2020-11-30 01:22:31,602 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 391 transitions. Word has length 15 [2020-11-30 01:22:31,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:22:31,604 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 391 transitions. [2020-11-30 01:22:31,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:22:31,604 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 391 transitions. [2020-11-30 01:22:31,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 01:22:31,605 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:22:31,606 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:22:31,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:22:31,606 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:22:31,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:22:31,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1193386920, now seen corresponding path program 1 times [2020-11-30 01:22:31,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:22:31,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996135643] [2020-11-30 01:22:31,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:22:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:22:31,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:22:31,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996135643] [2020-11-30 01:22:31,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:22:31,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:22:31,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966311173] [2020-11-30 01:22:31,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:22:31,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:22:31,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:22:31,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:22:31,739 INFO L87 Difference]: Start difference. First operand 162 states and 391 transitions. Second operand 6 states. [2020-11-30 01:22:31,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:22:31,811 INFO L93 Difference]: Finished difference Result 158 states and 360 transitions. [2020-11-30 01:22:31,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:22:31,811 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-30 01:22:31,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:22:31,812 INFO L225 Difference]: With dead ends: 158 [2020-11-30 01:22:31,813 INFO L226 Difference]: Without dead ends: 125 [2020-11-30 01:22:31,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:22:31,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-11-30 01:22:31,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-11-30 01:22:31,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-30 01:22:31,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 282 transitions. [2020-11-30 01:22:31,819 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 282 transitions. Word has length 16 [2020-11-30 01:22:31,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:22:31,819 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 282 transitions. [2020-11-30 01:22:31,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:22:31,820 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 282 transitions. [2020-11-30 01:22:31,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 01:22:31,821 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:22:31,821 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:22:31,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 01:22:31,821 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:22:31,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:22:31,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1709090152, now seen corresponding path program 1 times [2020-11-30 01:22:31,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:22:31,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561722986] [2020-11-30 01:22:31,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:22:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:22:31,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:22:31,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561722986] [2020-11-30 01:22:31,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:22:31,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:22:31,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311431224] [2020-11-30 01:22:31,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:22:31,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:22:31,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:22:31,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:22:31,935 INFO L87 Difference]: Start difference. First operand 125 states and 282 transitions. Second operand 7 states. [2020-11-30 01:22:32,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:22:32,039 INFO L93 Difference]: Finished difference Result 120 states and 270 transitions. [2020-11-30 01:22:32,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:22:32,039 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-11-30 01:22:32,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:22:32,041 INFO L225 Difference]: With dead ends: 120 [2020-11-30 01:22:32,041 INFO L226 Difference]: Without dead ends: 111 [2020-11-30 01:22:32,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:22:32,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-11-30 01:22:32,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-11-30 01:22:32,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-11-30 01:22:32,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 254 transitions. [2020-11-30 01:22:32,046 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 254 transitions. Word has length 18 [2020-11-30 01:22:32,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:22:32,046 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 254 transitions. [2020-11-30 01:22:32,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:22:32,047 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 254 transitions. [2020-11-30 01:22:32,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 01:22:32,048 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:22:32,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:22:32,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 01:22:32,048 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:22:32,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:22:32,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1760559887, now seen corresponding path program 1 times [2020-11-30 01:22:32,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:22:32,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920139100] [2020-11-30 01:22:32,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:22:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:22:32,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:22:32,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920139100] [2020-11-30 01:22:32,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:22:32,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:22:32,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747666508] [2020-11-30 01:22:32,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:22:32,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:22:32,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:22:32,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:22:32,158 INFO L87 Difference]: Start difference. First operand 111 states and 254 transitions. Second operand 4 states. [2020-11-30 01:22:32,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:22:32,181 INFO L93 Difference]: Finished difference Result 144 states and 327 transitions. [2020-11-30 01:22:32,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:22:32,182 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-30 01:22:32,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:22:32,183 INFO L225 Difference]: With dead ends: 144 [2020-11-30 01:22:32,183 INFO L226 Difference]: Without dead ends: 71 [2020-11-30 01:22:32,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:22:32,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-30 01:22:32,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-30 01:22:32,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-30 01:22:32,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-11-30 01:22:32,187 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 20 [2020-11-30 01:22:32,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:22:32,188 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-11-30 01:22:32,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:22:32,188 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-11-30 01:22:32,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 01:22:32,188 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:22:32,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:22:32,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 01:22:32,189 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:22:32,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:22:32,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1416850207, now seen corresponding path program 2 times [2020-11-30 01:22:32,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:22:32,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742934885] [2020-11-30 01:22:32,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:22:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:22:32,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:22:32,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742934885] [2020-11-30 01:22:32,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:22:32,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:22:32,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506237665] [2020-11-30 01:22:32,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:22:32,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:22:32,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:22:32,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:22:32,230 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-11-30 01:22:32,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:22:32,248 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-11-30 01:22:32,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:22:32,248 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-30 01:22:32,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:22:32,249 INFO L225 Difference]: With dead ends: 70 [2020-11-30 01:22:32,249 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:22:32,249 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:22:32,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:22:32,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:22:32,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:22:32,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:22:32,250 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-30 01:22:32,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:22:32,250 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:22:32,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:22:32,251 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:22:32,251 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:22:32,251 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 01:22:32,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:22:32 BasicIcfg [2020-11-30 01:22:32,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:22:32,255 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:22:32,255 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:22:32,255 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:22:32,256 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:22:26" (3/4) ... [2020-11-30 01:22:32,261 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:22:32,268 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-11-30 01:22:32,268 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-11-30 01:22:32,269 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-11-30 01:22:32,269 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2020-11-30 01:22:32,276 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-11-30 01:22:32,277 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 01:22:32,277 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:22:32,278 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:22:32,353 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7947ee3e-9514-478c-9548-aa43dce0dfcc/bin/uautomizer/witness.graphml [2020-11-30 01:22:32,356 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:22:32,358 INFO L168 Benchmark]: Toolchain (without parser) took 7357.89 ms. Allocated memory was 86.0 MB in the beginning and 174.1 MB in the end (delta: 88.1 MB). Free memory was 52.4 MB in the beginning and 124.3 MB in the end (delta: -71.9 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:22:32,359 INFO L168 Benchmark]: CDTParser took 0.98 ms. Allocated memory is still 86.0 MB. Free memory was 43.1 MB in the beginning and 43.0 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:22:32,360 INFO L168 Benchmark]: CACSL2BoogieTranslator took 576.98 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 52.2 MB in the beginning and 74.3 MB in the end (delta: -22.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:22:32,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.24 ms. Allocated memory is still 119.5 MB. Free memory was 74.3 MB in the beginning and 72.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:22:32,361 INFO L168 Benchmark]: Boogie Preprocessor took 27.46 ms. Allocated memory is still 119.5 MB. Free memory was 72.3 MB in the beginning and 70.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:22:32,361 INFO L168 Benchmark]: RCFGBuilder took 600.20 ms. Allocated memory is still 119.5 MB. Free memory was 70.9 MB in the beginning and 47.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:22:32,361 INFO L168 Benchmark]: TraceAbstraction took 5997.12 ms. Allocated memory was 119.5 MB in the beginning and 174.1 MB in the end (delta: 54.5 MB). Free memory was 46.5 MB in the beginning and 127.4 MB in the end (delta: -81.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:22:32,362 INFO L168 Benchmark]: Witness Printer took 101.74 ms. Allocated memory is still 174.1 MB. Free memory was 126.4 MB in the beginning and 124.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:22:32,364 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98 ms. Allocated memory is still 86.0 MB. Free memory was 43.1 MB in the beginning and 43.0 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 576.98 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 52.2 MB in the beginning and 74.3 MB in the end (delta: -22.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.24 ms. Allocated memory is still 119.5 MB. Free memory was 74.3 MB in the beginning and 72.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.46 ms. Allocated memory is still 119.5 MB. Free memory was 72.3 MB in the beginning and 70.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 600.20 ms. Allocated memory is still 119.5 MB. Free memory was 70.9 MB in the beginning and 47.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5997.12 ms. Allocated memory was 119.5 MB in the beginning and 174.1 MB in the end (delta: 54.5 MB). Free memory was 46.5 MB in the beginning and 127.4 MB in the end (delta: -81.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 101.74 ms. Allocated memory is still 174.1 MB. Free memory was 126.4 MB in the beginning and 124.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1383 VarBasedMoverChecksPositive, 68 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 51 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 112 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.3s, 101 PlacesBefore, 38 PlacesAfterwards, 91 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 3854 MoverChecksTotal - PositiveResult [Line: 17]: 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 5 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 209 SDtfs, 230 SDslu, 310 SDs, 0 SdLazy, 184 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 5985 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...