./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ec44525a-7423-4d57-96f0-cb7eba1c6e8f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ec44525a-7423-4d57-96f0-cb7eba1c6e8f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ec44525a-7423-4d57-96f0-cb7eba1c6e8f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ec44525a-7423-4d57-96f0-cb7eba1c6e8f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ec44525a-7423-4d57-96f0-cb7eba1c6e8f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ec44525a-7423-4d57-96f0-cb7eba1c6e8f/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 a3bbefcee290f98530e25ab3f5cc4cda5aa0150b ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 14:58:44,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 14:58:44,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 14:58:44,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 14:58:44,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 14:58:44,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 14:58:44,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 14:58:44,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 14:58:44,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 14:58:44,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 14:58:44,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 14:58:44,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 14:58:44,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 14:58:44,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 14:58:44,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 14:58:44,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 14:58:44,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 14:58:44,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 14:58:44,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 14:58:44,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 14:58:44,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 14:58:44,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 14:58:44,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 14:58:44,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 14:58:44,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 14:58:44,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 14:58:44,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 14:58:44,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 14:58:44,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 14:58:44,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 14:58:44,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 14:58:44,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 14:58:44,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 14:58:44,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 14:58:44,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 14:58:44,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 14:58:44,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 14:58:44,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 14:58:44,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 14:58:44,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 14:58:44,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 14:58:44,568 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ec44525a-7423-4d57-96f0-cb7eba1c6e8f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 14:58:44,590 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 14:58:44,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 14:58:44,592 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 14:58:44,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 14:58:44,592 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 14:58:44,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 14:58:44,593 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 14:58:44,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 14:58:44,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 14:58:44,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 14:58:44,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 14:58:44,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 14:58:44,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 14:58:44,594 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 14:58:44,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 14:58:44,594 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 14:58:44,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 14:58:44,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 14:58:44,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 14:58:44,595 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 14:58:44,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 14:58:44,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 14:58:44,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 14:58:44,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 14:58:44,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 14:58:44,596 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 14:58:44,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 14:58:44,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 14:58:44,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 14:58:44,597 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_ec44525a-7423-4d57-96f0-cb7eba1c6e8f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ec44525a-7423-4d57-96f0-cb7eba1c6e8f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3bbefcee290f98530e25ab3f5cc4cda5aa0150b [2020-12-01 14:58:44,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 14:58:44,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 14:58:44,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 14:58:44,857 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 14:58:44,859 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 14:58:44,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ec44525a-7423-4d57-96f0-cb7eba1c6e8f/bin/uautomizer/../../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c [2020-12-01 14:58:44,963 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec44525a-7423-4d57-96f0-cb7eba1c6e8f/bin/uautomizer/data/0e81be730/72f63d69fcb0416f910681f4d97b393e/FLAGee40e430e [2020-12-01 14:58:45,533 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 14:58:45,533 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ec44525a-7423-4d57-96f0-cb7eba1c6e8f/sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c [2020-12-01 14:58:45,545 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec44525a-7423-4d57-96f0-cb7eba1c6e8f/bin/uautomizer/data/0e81be730/72f63d69fcb0416f910681f4d97b393e/FLAGee40e430e [2020-12-01 14:58:45,882 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ec44525a-7423-4d57-96f0-cb7eba1c6e8f/bin/uautomizer/data/0e81be730/72f63d69fcb0416f910681f4d97b393e [2020-12-01 14:58:45,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 14:58:45,887 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 14:58:45,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 14:58:45,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 14:58:45,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 14:58:45,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:58:45" (1/1) ... [2020-12-01 14:58:45,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14dc5a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:45, skipping insertion in model container [2020-12-01 14:58:45,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:58:45" (1/1) ... [2020-12-01 14:58:45,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 14:58:45,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 14:58:46,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:58:46,225 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 14:58:46,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:58:46,293 INFO L208 MainTranslator]: Completed translation [2020-12-01 14:58:46,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:46 WrapperNode [2020-12-01 14:58:46,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 14:58:46,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 14:58:46,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 14:58:46,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 14:58:46,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:46" (1/1) ... [2020-12-01 14:58:46,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:46" (1/1) ... [2020-12-01 14:58:46,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 14:58:46,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 14:58:46,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 14:58:46,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 14:58:46,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:46" (1/1) ... [2020-12-01 14:58:46,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:46" (1/1) ... [2020-12-01 14:58:46,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:46" (1/1) ... [2020-12-01 14:58:46,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:46" (1/1) ... [2020-12-01 14:58:46,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:46" (1/1) ... [2020-12-01 14:58:46,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:46" (1/1) ... [2020-12-01 14:58:46,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:46" (1/1) ... [2020-12-01 14:58:46,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 14:58:46,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 14:58:46,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 14:58:46,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 14:58:46,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec44525a-7423-4d57-96f0-cb7eba1c6e8f/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 [2020-12-01 14:58:46,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 14:58:46,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 14:58:46,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 14:58:46,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 14:58:46,679 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-01 14:58:47,399 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-12-01 14:58:47,399 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-12-01 14:58:47,415 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 14:58:47,415 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 14:58:47,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:58:47 BoogieIcfgContainer [2020-12-01 14:58:47,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 14:58:47,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 14:58:47,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 14:58:47,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 14:58:47,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 02:58:45" (1/3) ... [2020-12-01 14:58:47,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43da9dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:58:47, skipping insertion in model container [2020-12-01 14:58:47,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:58:46" (2/3) ... [2020-12-01 14:58:47,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43da9dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:58:47, skipping insertion in model container [2020-12-01 14:58:47,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:58:47" (3/3) ... [2020-12-01 14:58:47,431 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.cil-1.c [2020-12-01 14:58:47,446 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 14:58:47,449 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 14:58:47,460 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 14:58:47,487 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 14:58:47,487 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 14:58:47,488 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 14:58:47,488 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 14:58:47,488 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 14:58:47,488 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 14:58:47,488 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 14:58:47,488 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 14:58:47,506 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2020-12-01 14:58:47,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-01 14:58:47,515 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:47,515 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, 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] [2020-12-01 14:58:47,516 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:47,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:47,521 INFO L82 PathProgramCache]: Analyzing trace with hash -947483198, now seen corresponding path program 1 times [2020-12-01 14:58:47,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:47,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636431240] [2020-12-01 14:58:47,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:47,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:47,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636431240] [2020-12-01 14:58:47,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:47,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:47,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025559424] [2020-12-01 14:58:47,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:47,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:47,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:47,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:47,828 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 3 states. [2020-12-01 14:58:48,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:48,223 INFO L93 Difference]: Finished difference Result 334 states and 571 transitions. [2020-12-01 14:58:48,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:48,225 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-12-01 14:58:48,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:48,253 INFO L225 Difference]: With dead ends: 334 [2020-12-01 14:58:48,253 INFO L226 Difference]: Without dead ends: 178 [2020-12-01 14:58:48,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:48,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-12-01 14:58:48,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 172. [2020-12-01 14:58:48,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-12-01 14:58:48,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 278 transitions. [2020-12-01 14:58:48,322 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 278 transitions. Word has length 45 [2020-12-01 14:58:48,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:48,324 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 278 transitions. [2020-12-01 14:58:48,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:48,325 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 278 transitions. [2020-12-01 14:58:48,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-01 14:58:48,332 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:48,332 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, 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] [2020-12-01 14:58:48,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 14:58:48,333 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:48,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:48,335 INFO L82 PathProgramCache]: Analyzing trace with hash 472840096, now seen corresponding path program 1 times [2020-12-01 14:58:48,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:48,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307737367] [2020-12-01 14:58:48,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:48,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:48,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307737367] [2020-12-01 14:58:48,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:48,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:48,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877653586] [2020-12-01 14:58:48,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:48,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:48,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:48,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:48,493 INFO L87 Difference]: Start difference. First operand 172 states and 278 transitions. Second operand 3 states. [2020-12-01 14:58:48,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:48,727 INFO L93 Difference]: Finished difference Result 385 states and 632 transitions. [2020-12-01 14:58:48,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:48,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-12-01 14:58:48,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:48,733 INFO L225 Difference]: With dead ends: 385 [2020-12-01 14:58:48,733 INFO L226 Difference]: Without dead ends: 219 [2020-12-01 14:58:48,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:48,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-12-01 14:58:48,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 213. [2020-12-01 14:58:48,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-12-01 14:58:48,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 355 transitions. [2020-12-01 14:58:48,765 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 355 transitions. Word has length 46 [2020-12-01 14:58:48,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:48,766 INFO L481 AbstractCegarLoop]: Abstraction has 213 states and 355 transitions. [2020-12-01 14:58:48,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:48,766 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 355 transitions. [2020-12-01 14:58:48,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-01 14:58:48,769 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:48,769 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 14:58:48,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 14:58:48,770 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:48,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:48,771 INFO L82 PathProgramCache]: Analyzing trace with hash 488183924, now seen corresponding path program 1 times [2020-12-01 14:58:48,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:48,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11505665] [2020-12-01 14:58:48,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:48,865 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:48,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11505665] [2020-12-01 14:58:48,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:48,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:48,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360378002] [2020-12-01 14:58:48,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:48,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:48,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:48,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:48,868 INFO L87 Difference]: Start difference. First operand 213 states and 355 transitions. Second operand 3 states. [2020-12-01 14:58:49,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:49,065 INFO L93 Difference]: Finished difference Result 449 states and 756 transitions. [2020-12-01 14:58:49,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:49,066 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-12-01 14:58:49,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:49,069 INFO L225 Difference]: With dead ends: 449 [2020-12-01 14:58:49,069 INFO L226 Difference]: Without dead ends: 244 [2020-12-01 14:58:49,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:49,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-12-01 14:58:49,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2020-12-01 14:58:49,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-12-01 14:58:49,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 411 transitions. [2020-12-01 14:58:49,112 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 411 transitions. Word has length 74 [2020-12-01 14:58:49,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:49,113 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 411 transitions. [2020-12-01 14:58:49,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:49,113 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 411 transitions. [2020-12-01 14:58:49,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-01 14:58:49,117 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:49,117 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:58:49,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 14:58:49,117 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:49,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:49,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1651483739, now seen corresponding path program 1 times [2020-12-01 14:58:49,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:49,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634295365] [2020-12-01 14:58:49,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:49,245 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:49,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634295365] [2020-12-01 14:58:49,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:49,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:49,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610093556] [2020-12-01 14:58:49,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:49,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:49,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:49,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:49,252 INFO L87 Difference]: Start difference. First operand 244 states and 411 transitions. Second operand 3 states. [2020-12-01 14:58:49,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:49,471 INFO L93 Difference]: Finished difference Result 526 states and 892 transitions. [2020-12-01 14:58:49,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:49,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-12-01 14:58:49,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:49,474 INFO L225 Difference]: With dead ends: 526 [2020-12-01 14:58:49,474 INFO L226 Difference]: Without dead ends: 290 [2020-12-01 14:58:49,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:49,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-12-01 14:58:49,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 286. [2020-12-01 14:58:49,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-12-01 14:58:49,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 486 transitions. [2020-12-01 14:58:49,491 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 486 transitions. Word has length 85 [2020-12-01 14:58:49,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:49,491 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 486 transitions. [2020-12-01 14:58:49,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:49,491 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 486 transitions. [2020-12-01 14:58:49,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-01 14:58:49,501 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:49,501 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 14:58:49,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 14:58:49,502 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:49,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:49,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1358393014, now seen corresponding path program 1 times [2020-12-01 14:58:49,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:49,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576858808] [2020-12-01 14:58:49,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:49,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 14:58:49,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576858808] [2020-12-01 14:58:49,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:49,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:49,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610047167] [2020-12-01 14:58:49,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:49,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:49,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:49,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:49,612 INFO L87 Difference]: Start difference. First operand 286 states and 486 transitions. Second operand 3 states. [2020-12-01 14:58:49,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:49,765 INFO L93 Difference]: Finished difference Result 581 states and 988 transitions. [2020-12-01 14:58:49,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:49,765 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2020-12-01 14:58:49,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:49,768 INFO L225 Difference]: With dead ends: 581 [2020-12-01 14:58:49,768 INFO L226 Difference]: Without dead ends: 303 [2020-12-01 14:58:49,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:49,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-12-01 14:58:49,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 301. [2020-12-01 14:58:49,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-12-01 14:58:49,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 508 transitions. [2020-12-01 14:58:49,782 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 508 transitions. Word has length 86 [2020-12-01 14:58:49,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:49,782 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 508 transitions. [2020-12-01 14:58:49,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:49,783 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 508 transitions. [2020-12-01 14:58:49,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-01 14:58:49,785 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:49,785 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:58:49,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-01 14:58:49,785 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:49,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:49,786 INFO L82 PathProgramCache]: Analyzing trace with hash 709328611, now seen corresponding path program 1 times [2020-12-01 14:58:49,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:49,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651623242] [2020-12-01 14:58:49,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:49,904 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:58:49,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651623242] [2020-12-01 14:58:49,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:49,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:49,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665032864] [2020-12-01 14:58:49,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:49,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:49,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:49,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:49,909 INFO L87 Difference]: Start difference. First operand 301 states and 508 transitions. Second operand 3 states. [2020-12-01 14:58:50,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:50,135 INFO L93 Difference]: Finished difference Result 598 states and 1009 transitions. [2020-12-01 14:58:50,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:50,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2020-12-01 14:58:50,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:50,138 INFO L225 Difference]: With dead ends: 598 [2020-12-01 14:58:50,138 INFO L226 Difference]: Without dead ends: 303 [2020-12-01 14:58:50,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:50,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-12-01 14:58:50,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-12-01 14:58:50,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-12-01 14:58:50,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 503 transitions. [2020-12-01 14:58:50,151 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 503 transitions. Word has length 86 [2020-12-01 14:58:50,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:50,152 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 503 transitions. [2020-12-01 14:58:50,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:50,152 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 503 transitions. [2020-12-01 14:58:50,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-01 14:58:50,153 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:50,154 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 14:58:50,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-01 14:58:50,154 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:50,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:50,155 INFO L82 PathProgramCache]: Analyzing trace with hash 564851953, now seen corresponding path program 1 times [2020-12-01 14:58:50,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:50,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632133287] [2020-12-01 14:58:50,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:50,192 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 14:58:50,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632133287] [2020-12-01 14:58:50,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:50,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:50,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894823404] [2020-12-01 14:58:50,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:50,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:50,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:50,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:50,194 INFO L87 Difference]: Start difference. First operand 299 states and 503 transitions. Second operand 3 states. [2020-12-01 14:58:50,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:50,342 INFO L93 Difference]: Finished difference Result 592 states and 996 transitions. [2020-12-01 14:58:50,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:50,343 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2020-12-01 14:58:50,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:50,345 INFO L225 Difference]: With dead ends: 592 [2020-12-01 14:58:50,345 INFO L226 Difference]: Without dead ends: 301 [2020-12-01 14:58:50,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:50,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-12-01 14:58:50,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 299. [2020-12-01 14:58:50,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-12-01 14:58:50,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 499 transitions. [2020-12-01 14:58:50,365 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 499 transitions. Word has length 87 [2020-12-01 14:58:50,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:50,365 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 499 transitions. [2020-12-01 14:58:50,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:50,365 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 499 transitions. [2020-12-01 14:58:50,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-12-01 14:58:50,367 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:50,367 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2020-12-01 14:58:50,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-01 14:58:50,367 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:50,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:50,368 INFO L82 PathProgramCache]: Analyzing trace with hash 19025617, now seen corresponding path program 1 times [2020-12-01 14:58:50,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:50,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717813540] [2020-12-01 14:58:50,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:50,425 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-12-01 14:58:50,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717813540] [2020-12-01 14:58:50,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:50,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:50,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2656584] [2020-12-01 14:58:50,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:50,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:50,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:50,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:50,428 INFO L87 Difference]: Start difference. First operand 299 states and 499 transitions. Second operand 3 states. [2020-12-01 14:58:50,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:50,591 INFO L93 Difference]: Finished difference Result 599 states and 998 transitions. [2020-12-01 14:58:50,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:50,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-12-01 14:58:50,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:50,594 INFO L225 Difference]: With dead ends: 599 [2020-12-01 14:58:50,594 INFO L226 Difference]: Without dead ends: 308 [2020-12-01 14:58:50,595 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:50,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-12-01 14:58:50,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2020-12-01 14:58:50,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-12-01 14:58:50,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 505 transitions. [2020-12-01 14:58:50,607 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 505 transitions. Word has length 100 [2020-12-01 14:58:50,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:50,607 INFO L481 AbstractCegarLoop]: Abstraction has 308 states and 505 transitions. [2020-12-01 14:58:50,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:50,607 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 505 transitions. [2020-12-01 14:58:50,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-12-01 14:58:50,609 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:50,609 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2020-12-01 14:58:50,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-01 14:58:50,609 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:50,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:50,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1778247501, now seen corresponding path program 1 times [2020-12-01 14:58:50,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:50,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58820417] [2020-12-01 14:58:50,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:50,669 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 14:58:50,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58820417] [2020-12-01 14:58:50,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:50,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:50,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679817482] [2020-12-01 14:58:50,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:50,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:50,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:50,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:50,679 INFO L87 Difference]: Start difference. First operand 308 states and 505 transitions. Second operand 3 states. [2020-12-01 14:58:50,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:50,909 INFO L93 Difference]: Finished difference Result 639 states and 1051 transitions. [2020-12-01 14:58:50,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:50,910 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-12-01 14:58:50,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:50,913 INFO L225 Difference]: With dead ends: 639 [2020-12-01 14:58:50,913 INFO L226 Difference]: Without dead ends: 339 [2020-12-01 14:58:50,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:50,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-12-01 14:58:50,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 337. [2020-12-01 14:58:50,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-12-01 14:58:50,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 552 transitions. [2020-12-01 14:58:50,928 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 552 transitions. Word has length 100 [2020-12-01 14:58:50,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:50,928 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 552 transitions. [2020-12-01 14:58:50,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:50,928 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 552 transitions. [2020-12-01 14:58:50,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-01 14:58:50,930 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:50,930 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2020-12-01 14:58:50,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-01 14:58:50,930 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:50,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:50,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1388103916, now seen corresponding path program 1 times [2020-12-01 14:58:50,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:50,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371733995] [2020-12-01 14:58:50,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:50,979 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 14:58:50,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371733995] [2020-12-01 14:58:50,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:50,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:50,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510042795] [2020-12-01 14:58:50,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:50,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:50,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:50,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:50,981 INFO L87 Difference]: Start difference. First operand 337 states and 552 transitions. Second operand 3 states. [2020-12-01 14:58:51,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:51,174 INFO L93 Difference]: Finished difference Result 668 states and 1094 transitions. [2020-12-01 14:58:51,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:51,174 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2020-12-01 14:58:51,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:51,177 INFO L225 Difference]: With dead ends: 668 [2020-12-01 14:58:51,177 INFO L226 Difference]: Without dead ends: 339 [2020-12-01 14:58:51,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:51,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-12-01 14:58:51,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 337. [2020-12-01 14:58:51,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-12-01 14:58:51,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 548 transitions. [2020-12-01 14:58:51,191 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 548 transitions. Word has length 101 [2020-12-01 14:58:51,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:51,193 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 548 transitions. [2020-12-01 14:58:51,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:51,193 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 548 transitions. [2020-12-01 14:58:51,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-01 14:58:51,194 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:51,195 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 14:58:51,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-01 14:58:51,195 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:51,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:51,196 INFO L82 PathProgramCache]: Analyzing trace with hash -916073731, now seen corresponding path program 1 times [2020-12-01 14:58:51,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:51,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757423134] [2020-12-01 14:58:51,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:51,257 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 14:58:51,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757423134] [2020-12-01 14:58:51,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:51,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:51,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213429549] [2020-12-01 14:58:51,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:51,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:51,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:51,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:51,260 INFO L87 Difference]: Start difference. First operand 337 states and 548 transitions. Second operand 3 states. [2020-12-01 14:58:51,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:51,435 INFO L93 Difference]: Finished difference Result 701 states and 1144 transitions. [2020-12-01 14:58:51,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:51,436 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-12-01 14:58:51,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:51,439 INFO L225 Difference]: With dead ends: 701 [2020-12-01 14:58:51,439 INFO L226 Difference]: Without dead ends: 372 [2020-12-01 14:58:51,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:51,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-12-01 14:58:51,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 364. [2020-12-01 14:58:51,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-12-01 14:58:51,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 590 transitions. [2020-12-01 14:58:51,455 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 590 transitions. Word has length 102 [2020-12-01 14:58:51,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:51,455 INFO L481 AbstractCegarLoop]: Abstraction has 364 states and 590 transitions. [2020-12-01 14:58:51,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:51,456 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 590 transitions. [2020-12-01 14:58:51,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-01 14:58:51,457 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:51,457 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2020-12-01 14:58:51,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-01 14:58:51,458 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:51,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:51,458 INFO L82 PathProgramCache]: Analyzing trace with hash 62624868, now seen corresponding path program 1 times [2020-12-01 14:58:51,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:51,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832011384] [2020-12-01 14:58:51,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:51,498 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 14:58:51,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832011384] [2020-12-01 14:58:51,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:51,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:51,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143313435] [2020-12-01 14:58:51,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:51,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:51,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:51,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:51,500 INFO L87 Difference]: Start difference. First operand 364 states and 590 transitions. Second operand 3 states. [2020-12-01 14:58:51,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:51,682 INFO L93 Difference]: Finished difference Result 728 states and 1181 transitions. [2020-12-01 14:58:51,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:51,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-12-01 14:58:51,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:51,685 INFO L225 Difference]: With dead ends: 728 [2020-12-01 14:58:51,685 INFO L226 Difference]: Without dead ends: 372 [2020-12-01 14:58:51,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:51,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-12-01 14:58:51,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 364. [2020-12-01 14:58:51,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-12-01 14:58:51,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 585 transitions. [2020-12-01 14:58:51,709 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 585 transitions. Word has length 103 [2020-12-01 14:58:51,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:51,710 INFO L481 AbstractCegarLoop]: Abstraction has 364 states and 585 transitions. [2020-12-01 14:58:51,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:51,710 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 585 transitions. [2020-12-01 14:58:51,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-01 14:58:51,711 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:51,712 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 14:58:51,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-01 14:58:51,712 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:51,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:51,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1773852357, now seen corresponding path program 1 times [2020-12-01 14:58:51,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:51,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109685493] [2020-12-01 14:58:51,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:51,762 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-12-01 14:58:51,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109685493] [2020-12-01 14:58:51,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:51,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:51,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617849997] [2020-12-01 14:58:51,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:51,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:51,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:51,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:51,765 INFO L87 Difference]: Start difference. First operand 364 states and 585 transitions. Second operand 3 states. [2020-12-01 14:58:51,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:51,927 INFO L93 Difference]: Finished difference Result 745 states and 1199 transitions. [2020-12-01 14:58:51,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:51,927 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-12-01 14:58:51,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:51,930 INFO L225 Difference]: With dead ends: 745 [2020-12-01 14:58:51,930 INFO L226 Difference]: Without dead ends: 389 [2020-12-01 14:58:51,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:51,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-12-01 14:58:51,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 385. [2020-12-01 14:58:51,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-12-01 14:58:51,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 614 transitions. [2020-12-01 14:58:51,948 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 614 transitions. Word has length 106 [2020-12-01 14:58:51,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:51,949 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 614 transitions. [2020-12-01 14:58:51,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:51,949 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 614 transitions. [2020-12-01 14:58:51,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-01 14:58:51,950 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:51,951 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 14:58:51,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-01 14:58:51,951 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:51,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:51,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1450939714, now seen corresponding path program 1 times [2020-12-01 14:58:51,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:51,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639082350] [2020-12-01 14:58:51,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:52,006 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-12-01 14:58:52,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639082350] [2020-12-01 14:58:52,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:52,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:52,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207091339] [2020-12-01 14:58:52,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:52,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:52,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:52,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:52,009 INFO L87 Difference]: Start difference. First operand 385 states and 614 transitions. Second operand 3 states. [2020-12-01 14:58:52,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:52,201 INFO L93 Difference]: Finished difference Result 766 states and 1222 transitions. [2020-12-01 14:58:52,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:52,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-12-01 14:58:52,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:52,205 INFO L225 Difference]: With dead ends: 766 [2020-12-01 14:58:52,205 INFO L226 Difference]: Without dead ends: 389 [2020-12-01 14:58:52,206 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:52,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-12-01 14:58:52,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 385. [2020-12-01 14:58:52,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-12-01 14:58:52,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 608 transitions. [2020-12-01 14:58:52,225 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 608 transitions. Word has length 107 [2020-12-01 14:58:52,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:52,225 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 608 transitions. [2020-12-01 14:58:52,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:52,225 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 608 transitions. [2020-12-01 14:58:52,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-12-01 14:58:52,227 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:52,227 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 14:58:52,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-01 14:58:52,228 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:52,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:52,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1044207465, now seen corresponding path program 1 times [2020-12-01 14:58:52,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:52,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443335598] [2020-12-01 14:58:52,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:58:52,280 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-01 14:58:52,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443335598] [2020-12-01 14:58:52,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:58:52,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:58:52,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141818725] [2020-12-01 14:58:52,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:58:52,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:58:52,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:58:52,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:52,283 INFO L87 Difference]: Start difference. First operand 385 states and 608 transitions. Second operand 3 states. [2020-12-01 14:58:52,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:58:52,348 INFO L93 Difference]: Finished difference Result 1093 states and 1730 transitions. [2020-12-01 14:58:52,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:58:52,349 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-12-01 14:58:52,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:58:52,353 INFO L225 Difference]: With dead ends: 1093 [2020-12-01 14:58:52,353 INFO L226 Difference]: Without dead ends: 716 [2020-12-01 14:58:52,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:58:52,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-12-01 14:58:52,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-12-01 14:58:52,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-12-01 14:58:52,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1128 transitions. [2020-12-01 14:58:52,388 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1128 transitions. Word has length 122 [2020-12-01 14:58:52,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:58:52,388 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 1128 transitions. [2020-12-01 14:58:52,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:58:52,388 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1128 transitions. [2020-12-01 14:58:52,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-12-01 14:58:52,391 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:58:52,391 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 14:58:52,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-01 14:58:52,391 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:58:52,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:58:52,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1005180377, now seen corresponding path program 1 times [2020-12-01 14:58:52,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:58:52,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221976163] [2020-12-01 14:58:52,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:58:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:52,426 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:58:52,462 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:58:52,533 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:58:52,536 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 14:58:52,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-01 14:58:52,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 02:58:52 BoogieIcfgContainer [2020-12-01 14:58:52,680 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 14:58:52,681 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 14:58:52,681 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 14:58:52,681 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 14:58:52,682 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:58:47" (3/4) ... [2020-12-01 14:58:52,683 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 14:58:52,813 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ec44525a-7423-4d57-96f0-cb7eba1c6e8f/bin/uautomizer/witness.graphml [2020-12-01 14:58:52,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 14:58:52,815 INFO L168 Benchmark]: Toolchain (without parser) took 6927.26 ms. Allocated memory was 100.7 MB in the beginning and 176.2 MB in the end (delta: 75.5 MB). Free memory was 66.9 MB in the beginning and 130.6 MB in the end (delta: -63.6 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:52,816 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 75.5 MB. Free memory was 34.7 MB in the beginning and 34.6 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:58:52,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 405.46 ms. Allocated memory is still 100.7 MB. Free memory was 66.8 MB in the beginning and 72.1 MB in the end (delta: -5.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:52,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.77 ms. Allocated memory is still 100.7 MB. Free memory was 72.1 MB in the beginning and 69.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:52,817 INFO L168 Benchmark]: Boogie Preprocessor took 44.36 ms. Allocated memory is still 100.7 MB. Free memory was 69.5 MB in the beginning and 67.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:52,818 INFO L168 Benchmark]: RCFGBuilder took 1011.93 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 67.3 MB in the beginning and 81.8 MB in the end (delta: -14.5 MB). Peak memory consumption was 44.2 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:52,818 INFO L168 Benchmark]: TraceAbstraction took 5256.21 ms. Allocated memory was 121.6 MB in the beginning and 176.2 MB in the end (delta: 54.5 MB). Free memory was 81.8 MB in the beginning and 144.2 MB in the end (delta: -62.4 MB). Peak memory consumption was 87.6 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:52,818 INFO L168 Benchmark]: Witness Printer took 132.72 ms. Allocated memory is still 176.2 MB. Free memory was 144.2 MB in the beginning and 130.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 14:58:52,821 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 75.5 MB. Free memory was 34.7 MB in the beginning and 34.6 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 405.46 ms. Allocated memory is still 100.7 MB. Free memory was 66.8 MB in the beginning and 72.1 MB in the end (delta: -5.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.77 ms. Allocated memory is still 100.7 MB. Free memory was 72.1 MB in the beginning and 69.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.36 ms. Allocated memory is still 100.7 MB. Free memory was 69.5 MB in the beginning and 67.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1011.93 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 67.3 MB in the beginning and 81.8 MB in the end (delta: -14.5 MB). Peak memory consumption was 44.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5256.21 ms. Allocated memory was 121.6 MB in the beginning and 176.2 MB in the end (delta: 54.5 MB). Free memory was 81.8 MB in the beginning and 144.2 MB in the end (delta: -62.4 MB). Peak memory consumption was 87.6 MB. Max. memory is 16.1 GB. * Witness Printer took 132.72 ms. Allocated memory is still 176.2 MB. Free memory was 144.2 MB in the beginning and 130.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L618] int s ; [L619] int tmp ; [L623] s = 8464 [L13] int s__info_callback = __VERIFIER_nondet_int() ; [L14] int s__in_handshake = __VERIFIER_nondet_int() ; [L15] int s__state ; [L16] int s__new_session ; [L17] int s__server ; [L18] int s__version = __VERIFIER_nondet_int() ; [L19] int s__type ; [L20] int s__init_num ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = 1; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__cert = __VERIFIER_nondet_int() ; [L27] int s__options = __VERIFIER_nondet_int() ; [L28] int s__verify_mode = __VERIFIER_nondet_int() ; [L29] int s__session__peer = __VERIFIER_nondet_int() ; [L30] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L31] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L33] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L34] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__cert_request ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__use_rsa_tmp ; [L38] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L40] int s__s3__tmp__next_state___0 ; [L41] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [L42] int s__session__cipher ; [L43] int buf = __VERIFIER_nondet_int() ; [L44] unsigned long l ; [L45] unsigned long Time ; [L46] unsigned long tmp = __VERIFIER_nondet_long() ; [L47] int cb ; [L48] long num1 ; [L49] int ret ; [L50] int new_state ; [L51] int state ; [L52] int skip ; [L53] int got_new_session ; [L54] int tmp___1 = __VERIFIER_nondet_int() ; [L55] int tmp___2 = __VERIFIER_nondet_int() ; [L56] int tmp___3 ; [L57] int tmp___4 ; [L58] int tmp___5 ; [L59] int tmp___6 ; [L60] int tmp___7 ; [L61] long tmp___8 = __VERIFIER_nondet_long() ; [L62] int tmp___9 ; [L63] int tmp___10 ; [L64] int blastFlag ; [L65] int __cil_tmp55 ; [L66] unsigned long __cil_tmp56 ; [L67] unsigned long __cil_tmp57 ; [L68] unsigned long __cil_tmp58 ; [L69] unsigned long __cil_tmp59 ; [L70] int __cil_tmp60 ; [L71] unsigned long __cil_tmp61 ; [L75] s__state = initial_state [L76] blastFlag = 0 [L77] Time = tmp [L78] cb = 0 [L79] ret = -1 [L80] skip = 0 [L81] got_new_session = 0 [L82] COND TRUE s__info_callback != 0 [L83] cb = s__info_callback [L89] s__in_handshake ++ [L90] COND FALSE !(tmp___1 + 12288) [L95] COND FALSE !(s__cert == 0) [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND TRUE s__state == 8464 [L270] s__shutdown = 0 [L271] ret = __VERIFIER_nondet_int() [L272] COND TRUE blastFlag == 0 [L273] blastFlag = 1 [L275] COND FALSE !(ret <= 0) [L278] got_new_session = 1 [L279] s__state = 8496 [L280] s__init_num = 0 [L585] COND FALSE !(! s__s3__tmp__reuse_message) [L602] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND TRUE s__state == 8496 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L288] COND FALSE !(ret <= 0) [L291] COND TRUE \read(s__hit) [L292] s__state = 8656 [L296] s__init_num = 0 [L585] COND FALSE !(! s__s3__tmp__reuse_message) [L602] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND FALSE !(s__state == 8496) [L138] COND FALSE !(s__state == 8497) [L141] COND FALSE !(s__state == 8512) [L144] COND FALSE !(s__state == 8513) [L147] COND FALSE !(s__state == 8528) [L150] COND FALSE !(s__state == 8529) [L153] COND FALSE !(s__state == 8544) [L156] COND FALSE !(s__state == 8545) [L159] COND FALSE !(s__state == 8560) [L162] COND FALSE !(s__state == 8561) [L165] COND FALSE !(s__state == 8448) [L168] COND FALSE !(s__state == 8576) [L171] COND FALSE !(s__state == 8577) [L174] COND FALSE !(s__state == 8592) [L177] COND FALSE !(s__state == 8593) [L180] COND FALSE !(s__state == 8608) [L183] COND FALSE !(s__state == 8609) [L186] COND FALSE !(s__state == 8640) [L189] COND FALSE !(s__state == 8641) [L192] COND TRUE s__state == 8656 [L490] s__session__cipher = s__s3__tmp__new_cipher [L491] tmp___9 = __VERIFIER_nondet_int() [L492] COND FALSE !(! tmp___9) [L496] ret = __VERIFIER_nondet_int() [L497] COND TRUE blastFlag == 2 [L498] blastFlag = 3 [L500] COND FALSE !(ret <= 0) [L503] s__state = 8672 [L504] s__init_num = 0 [L505] tmp___10 = __VERIFIER_nondet_int() [L506] COND FALSE !(! tmp___10) [L585] COND FALSE !(! s__s3__tmp__reuse_message) [L602] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND FALSE !(s__state == 8496) [L138] COND FALSE !(s__state == 8497) [L141] COND FALSE !(s__state == 8512) [L144] COND FALSE !(s__state == 8513) [L147] COND FALSE !(s__state == 8528) [L150] COND FALSE !(s__state == 8529) [L153] COND FALSE !(s__state == 8544) [L156] COND FALSE !(s__state == 8545) [L159] COND FALSE !(s__state == 8560) [L162] COND FALSE !(s__state == 8561) [L165] COND FALSE !(s__state == 8448) [L168] COND FALSE !(s__state == 8576) [L171] COND FALSE !(s__state == 8577) [L174] COND FALSE !(s__state == 8592) [L177] COND FALSE !(s__state == 8593) [L180] COND FALSE !(s__state == 8608) [L183] COND FALSE !(s__state == 8609) [L186] COND FALSE !(s__state == 8640) [L189] COND FALSE !(s__state == 8641) [L192] COND FALSE !(s__state == 8656) [L195] COND FALSE !(s__state == 8657) [L198] COND TRUE s__state == 8672 [L513] ret = __VERIFIER_nondet_int() [L514] COND FALSE !(blastFlag == 4) [L517] COND TRUE blastFlag == 3 [L3] __assert_fail("0", "s3_srvr_1.cil-1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 144 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.0s, OverallIterations: 16, TraceHistogramMax: 4, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2225 SDtfs, 2216 SDslu, 435 SDs, 0 SdLazy, 1340 SolverSat, 604 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=716occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 52 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1472 NumberOfCodeBlocks, 1472 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1335 ConstructedInterpolants, 0 QuantifiedInterpolants, 221866 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 736/736 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 incorrect! Received shutdown request...