./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6f2d40-c7ef-40f4-91e4-b9c3f972c158/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6f2d40-c7ef-40f4-91e4-b9c3f972c158/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6f2d40-c7ef-40f4-91e4-b9c3f972c158/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6f2d40-c7ef-40f4-91e4-b9c3f972c158/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6f2d40-c7ef-40f4-91e4-b9c3f972c158/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6f2d40-c7ef-40f4-91e4-b9c3f972c158/bin/ukojak-LBtLqBUTdQ --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 29123ed479a06938c1b58bc0ee2ae38219e9e012922d3ca9fba5679eb1736558 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:56:06,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:56:06,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:56:06,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:56:06,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:56:06,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:56:06,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:56:06,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:56:06,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:56:06,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:56:06,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:56:06,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:56:06,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:56:06,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:56:06,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:56:06,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:56:06,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:56:06,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:56:06,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:56:06,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:56:06,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:56:06,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:56:06,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:56:06,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:56:06,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:56:06,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:56:06,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:56:06,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:56:06,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:56:06,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:56:06,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:56:06,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:56:06,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:56:06,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:56:06,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:56:06,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:56:06,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:56:06,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:56:06,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:56:06,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:56:06,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:56:06,821 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6f2d40-c7ef-40f4-91e4-b9c3f972c158/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:56:06,868 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:56:06,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:56:06,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:56:06,870 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:56:06,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:56:06,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:56:06,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:56:06,872 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:56:06,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:56:06,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:56:06,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:56:06,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:56:06,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:56:06,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:56:06,882 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:56:06,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:56:06,882 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:56:06,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:56:06,883 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:56:06,883 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:56:06,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:56:06,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:56:06,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:56:06,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:56:06,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:56:06,885 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:56:06,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:56:06,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:56:06,885 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_7b6f2d40-c7ef-40f4-91e4-b9c3f972c158/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6f2d40-c7ef-40f4-91e4-b9c3f972c158/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29123ed479a06938c1b58bc0ee2ae38219e9e012922d3ca9fba5679eb1736558 [2021-11-23 00:56:07,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:56:07,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:56:07,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:56:07,307 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:56:07,308 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:56:07,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6f2d40-c7ef-40f4-91e4-b9c3f972c158/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c [2021-11-23 00:56:07,412 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6f2d40-c7ef-40f4-91e4-b9c3f972c158/bin/ukojak-LBtLqBUTdQ/data/678e85652/6726bfb86a95462b9ab72f35b8c66e77/FLAG8fe3b66d1 [2021-11-23 00:56:08,009 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:56:08,010 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6f2d40-c7ef-40f4-91e4-b9c3f972c158/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c [2021-11-23 00:56:08,016 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6f2d40-c7ef-40f4-91e4-b9c3f972c158/bin/ukojak-LBtLqBUTdQ/data/678e85652/6726bfb86a95462b9ab72f35b8c66e77/FLAG8fe3b66d1 [2021-11-23 00:56:08,378 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6f2d40-c7ef-40f4-91e4-b9c3f972c158/bin/ukojak-LBtLqBUTdQ/data/678e85652/6726bfb86a95462b9ab72f35b8c66e77 [2021-11-23 00:56:08,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:56:08,382 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:56:08,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:56:08,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:56:08,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:56:08,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:56:08" (1/1) ... [2021-11-23 00:56:08,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243603cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:08, skipping insertion in model container [2021-11-23 00:56:08,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:56:08" (1/1) ... [2021-11-23 00:56:08,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:56:08,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:56:08,602 WARN L230 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_7b6f2d40-c7ef-40f4-91e4-b9c3f972c158/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c[535,548] [2021-11-23 00:56:08,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:56:08,686 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:56:08,704 WARN L230 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_7b6f2d40-c7ef-40f4-91e4-b9c3f972c158/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c[535,548] [2021-11-23 00:56:08,732 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:56:08,754 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:56:08,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:08 WrapperNode [2021-11-23 00:56:08,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:56:08,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:56:08,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:56:08,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:56:08,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:08" (1/1) ... [2021-11-23 00:56:08,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:08" (1/1) ... [2021-11-23 00:56:08,818 INFO L137 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2021-11-23 00:56:08,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:56:08,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:56:08,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:56:08,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:56:08,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:08" (1/1) ... [2021-11-23 00:56:08,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:08" (1/1) ... [2021-11-23 00:56:08,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:08" (1/1) ... [2021-11-23 00:56:08,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:08" (1/1) ... [2021-11-23 00:56:08,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:08" (1/1) ... [2021-11-23 00:56:08,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:08" (1/1) ... [2021-11-23 00:56:08,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:08" (1/1) ... [2021-11-23 00:56:08,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:56:08,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:56:08,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:56:08,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:56:08,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:56:08" (1/1) ... [2021-11-23 00:56:08,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:56:08,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6f2d40-c7ef-40f4-91e4-b9c3f972c158/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:56:08,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6f2d40-c7ef-40f4-91e4-b9c3f972c158/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:56:08,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6f2d40-c7ef-40f4-91e4-b9c3f972c158/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:56:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:56:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 00:56:08,974 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 00:56:08,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:56:08,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:56:08,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:56:08,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 00:56:08,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 00:56:09,047 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:56:09,050 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:56:09,256 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:56:09,300 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:56:09,300 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 00:56:09,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:56:09 BoogieIcfgContainer [2021-11-23 00:56:09,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:56:09,305 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:56:09,305 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:56:09,318 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:56:09,318 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:56:09" (1/1) ... [2021-11-23 00:56:09,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:56:09,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:09,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2021-11-23 00:56:09,429 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2021-11-23 00:56:09,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 00:56:09,436 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:09,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:09,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:56:09,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:09,954 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:57:16,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11m for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 00:57:45,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 28.91s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 00:57:45,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:45,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 31 states and 47 transitions. [2021-11-23 00:57:45,373 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 47 transitions. [2021-11-23 00:57:45,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 00:57:45,374 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:45,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:45,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:57:45,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:58:51,799 WARN L227 SmtUtils]: Spent 1.10m on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 00:59:57,091 WARN L227 SmtUtils]: Spent 1.09m on a formula simplification that was a NOOP. DAG size: 15 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:01:03,324 WARN L227 SmtUtils]: Spent 1.10m on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:01:03,621 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:02:09,412 WARN L227 SmtUtils]: Spent 1.09m on a formula simplification that was a NOOP. DAG size: 16 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:03:54,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16m for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 01:03:54,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:54,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 33 states and 50 transitions. [2021-11-23 01:03:54,853 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2021-11-23 01:03:54,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 01:03:54,855 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:54,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:54,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 01:03:54,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:56,467 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:03:58,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:58,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 37 states and 58 transitions. [2021-11-23 01:03:58,654 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 58 transitions. [2021-11-23 01:03:58,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:03:58,655 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:58,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:58,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:03:58,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:58,849 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:03:58,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:58,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 39 states and 59 transitions. [2021-11-23 01:03:58,945 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 59 transitions. [2021-11-23 01:03:58,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 01:03:58,947 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:58,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:58,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:03:59,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:59,123 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-23 01:03:59,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:59,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 42 states and 62 transitions. [2021-11-23 01:03:59,169 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 62 transitions. [2021-11-23 01:03:59,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 01:03:59,172 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:59,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:59,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 01:03:59,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:59,373 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 01:04:04,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:04,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 48 states and 72 transitions. [2021-11-23 01:04:04,123 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 72 transitions. [2021-11-23 01:04:04,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 01:04:04,126 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:04,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:04,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 01:04:04,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:07,153 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-23 01:04:20,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:20,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 55 states and 87 transitions. [2021-11-23 01:04:20,065 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 87 transitions. [2021-11-23 01:04:20,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 01:04:20,068 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:20,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:20,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:04:20,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:20,226 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-23 01:04:43,730 WARN L227 SmtUtils]: Spent 20.89s on a formula simplification. DAG size of input: 30 DAG size of output: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:04:54,208 WARN L227 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:04:54,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:54,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 58 states and 89 transitions. [2021-11-23 01:04:54,239 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 89 transitions. [2021-11-23 01:04:54,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 01:04:54,240 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:54,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:54,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 01:04:54,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:54,801 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 01:04:56,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:56,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 61 states and 94 transitions. [2021-11-23 01:04:56,957 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 94 transitions. [2021-11-23 01:04:56,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 01:04:56,959 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:56,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:57,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-23 01:04:57,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:06:53,026 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 25 proven. 12 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 01:07:49,337 WARN L227 SmtUtils]: Spent 20.10s on a formula simplification. DAG size of input: 46 DAG size of output: 34 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:08:20,973 WARN L227 SmtUtils]: Spent 10.10s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:10:11,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:10:11,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 70 states and 128 transitions. [2021-11-23 01:10:11,467 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 128 transitions. [2021-11-23 01:10:11,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 01:10:11,469 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:10:11,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:10:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:10:11,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 01:10:11,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:10:36,605 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 25 proven. 11 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked.