./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/bin/ukojak-Rh5K9KB4LI --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e89b4ab54b22145b4041cfb458aca993f2d791ac86940dcd03d48a90a5273393 ............................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 02:53:45,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 02:53:45,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 02:53:45,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 02:53:45,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 02:53:45,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 02:53:45,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 02:53:45,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 02:53:45,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 02:53:45,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 02:53:45,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 02:53:45,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 02:53:45,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 02:53:45,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 02:53:45,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 02:53:45,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 02:53:45,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 02:53:45,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 02:53:45,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 02:53:45,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 02:53:45,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 02:53:45,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 02:53:45,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 02:53:45,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 02:53:45,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 02:53:45,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 02:53:45,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 02:53:45,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 02:53:45,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 02:53:45,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 02:53:45,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 02:53:45,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 02:53:45,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 02:53:45,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 02:53:45,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 02:53:45,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 02:53:45,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 02:53:45,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 02:53:45,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 02:53:45,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 02:53:45,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 02:53:45,486 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 02:53:45,533 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 02:53:45,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 02:53:45,535 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 02:53:45,535 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 02:53:45,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 02:53:45,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 02:53:45,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 02:53:45,536 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 02:53:45,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 02:53:45,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 02:53:45,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 02:53:45,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 02:53:45,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 02:53:45,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 02:53:45,537 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 02:53:45,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 02:53:45,538 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 02:53:45,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 02:53:45,538 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 02:53:45,538 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 02:53:45,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 02:53:45,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 02:53:45,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 02:53:45,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 02:53:45,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 02:53:45,539 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 02:53:45,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 02:53:45,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 02:53:45,541 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_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e89b4ab54b22145b4041cfb458aca993f2d791ac86940dcd03d48a90a5273393 [2021-10-29 02:53:45,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 02:53:45,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 02:53:45,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 02:53:45,874 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 02:53:45,875 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 02:53:45,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c [2021-10-29 02:53:45,946 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/bin/ukojak-Rh5K9KB4LI/data/947a8c74b/beb17046fe334b71a9006c58b38cddd5/FLAG108adeb16 [2021-10-29 02:53:46,409 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 02:53:46,410 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c [2021-10-29 02:53:46,416 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/bin/ukojak-Rh5K9KB4LI/data/947a8c74b/beb17046fe334b71a9006c58b38cddd5/FLAG108adeb16 [2021-10-29 02:53:46,772 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/bin/ukojak-Rh5K9KB4LI/data/947a8c74b/beb17046fe334b71a9006c58b38cddd5 [2021-10-29 02:53:46,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 02:53:46,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 02:53:46,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 02:53:46,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 02:53:46,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 02:53:46,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:53:46" (1/1) ... [2021-10-29 02:53:46,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c73fdb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:46, skipping insertion in model container [2021-10-29 02:53:46,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:53:46" (1/1) ... [2021-10-29 02:53:46,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 02:53:46,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 02:53:46,993 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c[489,502] [2021-10-29 02:53:47,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 02:53:47,021 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 02:53:47,034 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c[489,502] [2021-10-29 02:53:47,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 02:53:47,057 INFO L208 MainTranslator]: Completed translation [2021-10-29 02:53:47,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:47 WrapperNode [2021-10-29 02:53:47,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 02:53:47,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 02:53:47,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 02:53:47,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 02:53:47,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:47" (1/1) ... [2021-10-29 02:53:47,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:47" (1/1) ... [2021-10-29 02:53:47,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 02:53:47,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 02:53:47,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 02:53:47,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 02:53:47,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:47" (1/1) ... [2021-10-29 02:53:47,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:47" (1/1) ... [2021-10-29 02:53:47,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:47" (1/1) ... [2021-10-29 02:53:47,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:47" (1/1) ... [2021-10-29 02:53:47,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:47" (1/1) ... [2021-10-29 02:53:47,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:47" (1/1) ... [2021-10-29 02:53:47,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:47" (1/1) ... [2021-10-29 02:53:47,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 02:53:47,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 02:53:47,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 02:53:47,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 02:53:47,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:47" (1/1) ... [2021-10-29 02:53:47,141 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 02:53:47,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 02:53:47,169 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 02:53:47,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 02:53:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-10-29 02:53:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-10-29 02:53:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 02:53:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 02:53:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 02:53:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 02:53:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-10-29 02:53:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-10-29 02:53:47,602 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 02:53:47,603 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-29 02:53:47,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:53:47 BoogieIcfgContainer [2021-10-29 02:53:47,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 02:53:47,606 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 02:53:47,606 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 02:53:47,618 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 02:53:47,618 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:53:47" (1/1) ... [2021-10-29 02:53:47,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 02:53:47,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:53:47,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2021-10-29 02:53:47,695 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2021-10-29 02:53:47,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 02:53:47,700 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:53:47,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:53:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:53:47,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 02:53:47,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:53:48,157 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-29 02:53:48,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:53:48,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 30 states and 48 transitions. [2021-10-29 02:53:48,290 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 48 transitions. [2021-10-29 02:53:48,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 02:53:48,296 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:53:48,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:53:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:53:48,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-29 02:53:48,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:53:48,681 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-29 02:53:49,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:53:49,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 33 states and 55 transitions. [2021-10-29 02:53:49,019 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2021-10-29 02:53:49,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-29 02:53:49,020 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:53:49,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:53:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:53:49,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-29 02:53:49,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:53:49,589 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-29 02:53:50,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:53:50,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 37 states and 64 transitions. [2021-10-29 02:53:50,338 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 64 transitions. [2021-10-29 02:53:50,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-29 02:53:50,341 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:53:50,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:53:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:53:50,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 02:53:50,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:53:50,506 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-29 02:53:50,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:53:50,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 37 states and 63 transitions. [2021-10-29 02:53:50,553 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 63 transitions. [2021-10-29 02:53:50,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-29 02:53:50,558 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:53:50,558 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:53:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:53:50,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 02:53:50,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:53:51,043 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-29 02:53:51,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:53:51,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 41 states and 75 transitions. [2021-10-29 02:53:51,554 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 75 transitions. [2021-10-29 02:53:51,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-29 02:53:51,556 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:53:51,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:53:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:53:51,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 02:53:51,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:53:51,914 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-29 02:53:52,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:53:52,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 45 states and 85 transitions. [2021-10-29 02:53:52,642 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 85 transitions. [2021-10-29 02:53:52,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-29 02:53:52,644 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:53:52,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:53:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:53:52,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-29 02:53:52,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:53:53,754 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 11 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-29 02:53:55,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:53:55,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 49 states and 100 transitions. [2021-10-29 02:53:55,129 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 100 transitions. [2021-10-29 02:53:55,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-29 02:53:55,131 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:53:55,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:53:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:53:55,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-29 02:53:55,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:53:56,052 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-10-29 02:53:56,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:53:56,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 50 states and 102 transitions. [2021-10-29 02:53:56,550 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 102 transitions. [2021-10-29 02:53:56,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-29 02:53:56,551 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:53:56,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:53:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:53:56,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 02:53:56,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:53:56,922 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-29 02:53:58,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:53:58,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 55 states and 120 transitions. [2021-10-29 02:53:58,718 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 120 transitions. [2021-10-29 02:53:58,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-29 02:53:58,720 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:53:58,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:53:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:53:58,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-29 02:53:58,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:53:59,779 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-10-29 02:54:02,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:54:02,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 59 states and 134 transitions. [2021-10-29 02:54:02,147 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 134 transitions. [2021-10-29 02:54:02,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-29 02:54:02,149 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:54:02,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:54:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:54:02,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-29 02:54:02,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:54:03,061 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-10-29 02:54:04,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:54:04,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 62 states and 141 transitions. [2021-10-29 02:54:04,766 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 141 transitions. [2021-10-29 02:54:04,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-29 02:54:04,768 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:54:04,768 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:54:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:54:04,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 02:54:04,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:54:05,027 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-10-29 02:54:07,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:54:07,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 66 states and 151 transitions. [2021-10-29 02:54:07,388 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 151 transitions. [2021-10-29 02:54:07,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-29 02:54:07,390 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:54:07,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:54:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:54:07,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-29 02:54:07,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:54:08,111 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-29 02:54:10,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:54:10,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 71 states and 169 transitions. [2021-10-29 02:54:10,332 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 169 transitions. [2021-10-29 02:54:10,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-29 02:54:10,333 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:54:10,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:54:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:54:10,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-29 02:54:10,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:54:11,177 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-29 02:54:11,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:54:11,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 72 states and 171 transitions. [2021-10-29 02:54:11,731 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 171 transitions. [2021-10-29 02:54:11,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-29 02:54:11,733 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:54:11,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:54:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:54:11,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-29 02:54:11,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:54:12,177 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-29 02:54:12,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:54:12,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 73 states and 174 transitions. [2021-10-29 02:54:12,577 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 174 transitions. [2021-10-29 02:54:12,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-29 02:54:12,578 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:54:12,578 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:54:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:54:12,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 02:54:12,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:54:12,737 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-29 02:54:18,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:54:18,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 49 states and 80 transitions. [2021-10-29 02:54:18,620 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 80 transitions. [2021-10-29 02:54:18,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-29 02:54:18,621 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:54:18,622 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:54:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:54:18,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 02:54:18,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:54:18,807 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-29 02:54:19,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:54:19,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 46 states and 72 transitions. [2021-10-29 02:54:19,313 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 72 transitions. [2021-10-29 02:54:19,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-29 02:54:19,314 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:54:19,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:54:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:54:19,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 02:54:19,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:54:19,538 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 27 proven. 13 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-29 02:54:24,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:54:24,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 47 states and 73 transitions. [2021-10-29 02:54:24,562 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 73 transitions. [2021-10-29 02:54:24,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-29 02:54:24,562 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:54:24,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:54:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:54:24,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 02:54:24,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:54:24,799 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 27 proven. 13 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-29 02:54:25,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:54:25,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 43 states and 64 transitions. [2021-10-29 02:54:25,193 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 64 transitions. [2021-10-29 02:54:25,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-29 02:54:25,194 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:54:25,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:54:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:54:25,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 02:54:25,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:54:25,382 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 33 proven. 10 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-29 02:54:26,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:54:26,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 33 states and 49 transitions. [2021-10-29 02:54:26,720 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2021-10-29 02:54:26,721 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 02:54:26,721 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 21 iterations. [2021-10-29 02:54:26,728 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-29 02:54:27,066 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 02:54:27,070 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 02:54:27,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 02:54:27 ImpRootNode [2021-10-29 02:54:27,071 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 02:54:27,071 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 02:54:27,071 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 02:54:27,071 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 02:54:27,072 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:53:47" (3/4) ... [2021-10-29 02:54:27,075 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 02:54:27,082 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-10-29 02:54:27,083 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-10-29 02:54:27,090 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-10-29 02:54:27,090 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-29 02:54:27,090 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 02:54:27,091 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 02:54:27,143 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 02:54:27,143 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 02:54:27,145 INFO L168 Benchmark]: Toolchain (without parser) took 40367.78 ms. Allocated memory was 94.4 MB in the beginning and 163.6 MB in the end (delta: 69.2 MB). Free memory was 62.3 MB in the beginning and 123.5 MB in the end (delta: -61.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2021-10-29 02:54:27,145 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 94.4 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 02:54:27,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.08 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 62.1 MB in the beginning and 87.9 MB in the end (delta: -25.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 02:54:27,147 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.73 ms. Allocated memory is still 113.2 MB. Free memory was 87.9 MB in the beginning and 86.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 02:54:27,147 INFO L168 Benchmark]: Boogie Preprocessor took 25.36 ms. Allocated memory is still 113.2 MB. Free memory was 86.4 MB in the beginning and 85.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 02:54:27,148 INFO L168 Benchmark]: RCFGBuilder took 481.42 ms. Allocated memory is still 113.2 MB. Free memory was 85.1 MB in the beginning and 72.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 02:54:27,149 INFO L168 Benchmark]: CodeCheck took 39464.45 ms. Allocated memory was 113.2 MB in the beginning and 163.6 MB in the end (delta: 50.3 MB). Free memory was 72.5 MB in the beginning and 126.6 MB in the end (delta: -54.1 MB). Peak memory consumption was 75.2 MB. Max. memory is 16.1 GB. [2021-10-29 02:54:27,149 INFO L168 Benchmark]: Witness Printer took 71.99 ms. Allocated memory is still 163.6 MB. Free memory was 126.6 MB in the beginning and 123.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 02:54:27,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 39.0s, OverallIterations: 21, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 22683648 SDtfs, 4718236 SDslu, 5592064 SDs, 0 SdLazy, 53474020 SolverSat, 13785856 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8369 GetRequests, 8035 SyntacticMatches, 128 SemanticMatches, 206 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19738 ImplicationChecksByTransitivity, 29.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 936 NumberOfCodeBlocks, 936 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 916 ConstructedInterpolants, 0 QuantifiedInterpolants, 3589 SizeOfPredicates, 91 NumberOfNonLiveVariables, 2777 ConjunctsInSsa, 371 ConjunctsInUnsatCore, 20 InterpolantComputations, 6 PerfectInterpolantSequences, 1394/1502 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 94.4 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 281.08 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 62.1 MB in the beginning and 87.9 MB in the end (delta: -25.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.73 ms. Allocated memory is still 113.2 MB. Free memory was 87.9 MB in the beginning and 86.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.36 ms. Allocated memory is still 113.2 MB. Free memory was 86.4 MB in the beginning and 85.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 481.42 ms. Allocated memory is still 113.2 MB. Free memory was 85.1 MB in the beginning and 72.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 39464.45 ms. Allocated memory was 113.2 MB in the beginning and 163.6 MB in the end (delta: 50.3 MB). Free memory was 72.5 MB in the beginning and 126.6 MB in the end (delta: -54.1 MB). Peak memory consumption was 75.2 MB. Max. memory is 16.1 GB. * Witness Printer took 71.99 ms. Allocated memory is still 163.6 MB. Free memory was 126.6 MB in the beginning and 123.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-29 02:54:27,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96022dab-8092-4c46-90e8-45c51c829b39/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...