./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 dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de027fb-c643-466f-b5bd-a598834a256e/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de027fb-c643-466f-b5bd-a598834a256e/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de027fb-c643-466f-b5bd-a598834a256e/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de027fb-c643-466f-b5bd-a598834a256e/bin/ukojak-92XMlrwhuB/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_0de027fb-c643-466f-b5bd-a598834a256e/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de027fb-c643-466f-b5bd-a598834a256e/bin/ukojak-92XMlrwhuB --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:37:08,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:37:08,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:37:08,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:37:08,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:37:08,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:37:08,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:37:08,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:37:08,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:37:08,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:37:08,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:37:08,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:37:08,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:37:08,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:37:08,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:37:08,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:37:08,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:37:08,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:37:08,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:37:08,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:37:08,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:37:08,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:37:08,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:37:08,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:37:08,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:37:08,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:37:08,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:37:08,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:37:08,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:37:08,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:37:08,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:37:08,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:37:08,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:37:08,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:37:08,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:37:08,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:37:08,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:37:08,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:37:08,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:37:08,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:37:08,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:37:08,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de027fb-c643-466f-b5bd-a598834a256e/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:37:08,240 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:37:08,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:37:08,242 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:37:08,242 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:37:08,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:37:08,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:37:08,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:37:08,244 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:37:08,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:37:08,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:37:08,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:37:08,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:37:08,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:37:08,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:37:08,246 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:37:08,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:37:08,247 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:37:08,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:37:08,247 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:37:08,247 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:37:08,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:37:08,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:37:08,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:37:08,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:37:08,248 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:37:08,249 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:37:08,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:37:08,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:37:08,251 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_0de027fb-c643-466f-b5bd-a598834a256e/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de027fb-c643-466f-b5bd-a598834a256e/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29123ed479a06938c1b58bc0ee2ae38219e9e012922d3ca9fba5679eb1736558 [2022-10-17 16:37:08,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:37:08,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:37:08,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:37:08,542 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:37:08,544 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:37:08,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de027fb-c643-466f-b5bd-a598834a256e/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c [2022-10-17 16:37:08,634 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de027fb-c643-466f-b5bd-a598834a256e/bin/ukojak-92XMlrwhuB/data/99d499d92/722f940ce26a4475ab11dd855d673897/FLAG070c71c60 [2022-10-17 16:37:09,044 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:37:09,044 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de027fb-c643-466f-b5bd-a598834a256e/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c [2022-10-17 16:37:09,051 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de027fb-c643-466f-b5bd-a598834a256e/bin/ukojak-92XMlrwhuB/data/99d499d92/722f940ce26a4475ab11dd855d673897/FLAG070c71c60 [2022-10-17 16:37:09,457 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de027fb-c643-466f-b5bd-a598834a256e/bin/ukojak-92XMlrwhuB/data/99d499d92/722f940ce26a4475ab11dd855d673897 [2022-10-17 16:37:09,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:37:09,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:37:09,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:37:09,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:37:09,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:37:09,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:37:09" (1/1) ... [2022-10-17 16:37:09,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f1bb3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:37:09, skipping insertion in model container [2022-10-17 16:37:09,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:37:09" (1/1) ... [2022-10-17 16:37:09,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:37:09,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:37:09,686 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_0de027fb-c643-466f-b5bd-a598834a256e/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c[535,548] [2022-10-17 16:37:09,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:37:09,740 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:37:09,756 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_0de027fb-c643-466f-b5bd-a598834a256e/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c[535,548] [2022-10-17 16:37:09,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:37:09,804 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:37:09,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:37:09 WrapperNode [2022-10-17 16:37:09,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:37:09,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:37:09,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:37:09,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:37:09,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:37:09" (1/1) ... [2022-10-17 16:37:09,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:37:09" (1/1) ... [2022-10-17 16:37:09,864 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2022-10-17 16:37:09,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:37:09,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:37:09,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:37:09,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:37:09,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:37:09" (1/1) ... [2022-10-17 16:37:09,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:37:09" (1/1) ... [2022-10-17 16:37:09,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:37:09" (1/1) ... [2022-10-17 16:37:09,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:37:09" (1/1) ... [2022-10-17 16:37:09,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:37:09" (1/1) ... [2022-10-17 16:37:09,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:37:09" (1/1) ... [2022-10-17 16:37:09,903 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:37:09" (1/1) ... [2022-10-17 16:37:09,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:37:09" (1/1) ... [2022-10-17 16:37:09,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:37:09,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:37:09,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:37:09,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:37:09,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:37:09" (1/1) ... [2022-10-17 16:37:09,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:37:09,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de027fb-c643-466f-b5bd-a598834a256e/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:37:09,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de027fb-c643-466f-b5bd-a598834a256e/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:37:09,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0de027fb-c643-466f-b5bd-a598834a256e/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:37:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:37:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 16:37:10,001 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 16:37:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:37:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:37:10,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:37:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:37:10,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:37:10,080 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:37:10,083 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:37:10,300 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:37:10,334 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:37:10,335 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-17 16:37:10,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:37:10 BoogieIcfgContainer [2022-10-17 16:37:10,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:37:10,356 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:37:10,356 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:37:10,367 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:37:10,367 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:37:10" (1/1) ... [2022-10-17 16:37:10,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:37:10,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:37:10,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2022-10-17 16:37:10,449 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2022-10-17 16:37:10,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 16:37:10,454 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:37:10,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:37:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:37:10,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:37:10,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:37:10,951 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:37:12,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:37:12,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 31 states and 46 transitions. [2022-10-17 16:37:12,340 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 46 transitions. [2022-10-17 16:37:12,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-17 16:37:12,342 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:37:12,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:37:12,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:37:12,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-17 16:37:12,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:37:13,221 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:37:14,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-10-17 16:37:15,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:37:15,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 35 states and 54 transitions. [2022-10-17 16:37:15,614 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 54 transitions. [2022-10-17 16:37:15,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-17 16:37:15,615 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:37:15,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:37:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:37:15,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:37:15,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:37:15,846 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:37:15,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:37:15,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 37 states and 55 transitions. [2022-10-17 16:37:15,936 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2022-10-17 16:37:15,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-17 16:37:15,938 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:37:15,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:37:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:37:15,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:37:15,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:37:16,105 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-17 16:37:16,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:37:16,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 40 states and 58 transitions. [2022-10-17 16:37:16,180 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2022-10-17 16:37:16,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-17 16:37:16,186 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:37:16,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:37:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:37:16,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 16:37:16,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:37:16,348 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-17 16:37:18,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:37:18,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 46 states and 68 transitions. [2022-10-17 16:37:18,732 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 68 transitions. [2022-10-17 16:37:18,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-17 16:37:18,733 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:37:18,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:37:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:37:18,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-17 16:37:18,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:37:20,509 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-10-17 16:37:28,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:37:28,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 55 states and 86 transitions. [2022-10-17 16:37:28,713 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 86 transitions. [2022-10-17 16:37:28,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-17 16:37:28,715 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:37:28,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:37:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:37:28,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:37:28,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:37:28,792 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-17 16:37:50,749 WARN L233 SmtUtils]: Spent 20.61s 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)