./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.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_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/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_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/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_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/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 2e94830d11d546a3c5eb98e6802b079c63f07b0a4b705dd9e7cd9e09e0492555 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:03:55,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:03:55,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:03:55,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:03:55,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:03:55,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:03:55,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:03:55,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:03:55,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:03:55,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:03:55,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:03:55,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:03:55,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:03:55,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:03:55,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:03:55,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:03:55,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:03:55,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:03:55,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:03:55,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:03:55,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:03:55,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:03:55,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:03:55,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:03:55,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:03:55,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:03:55,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:03:55,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:03:55,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:03:55,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:03:55,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:03:55,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:03:55,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:03:55,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:03:55,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:03:55,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:03:55,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:03:55,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:03:55,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:03:55,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:03:55,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:03:55,429 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:03:55,468 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:03:55,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:03:55,470 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:03:55,471 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:03:55,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:03:55,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:03:55,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:03:55,472 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:03:55,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:03:55,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:03:55,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:03:55,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:03:55,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:03:55,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:03:55,481 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:03:55,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:03:55,481 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:03:55,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:03:55,482 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:03:55,482 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:03:55,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:03:55,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:03:55,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:03:55,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:03:55,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:03:55,484 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:03:55,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:03:55,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:03:55,484 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_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e94830d11d546a3c5eb98e6802b079c63f07b0a4b705dd9e7cd9e09e0492555 [2021-11-23 01:03:55,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:03:55,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:03:55,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:03:55,836 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:03:55,837 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:03:55,839 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2021-11-23 01:03:55,926 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/bin/ukojak-LBtLqBUTdQ/data/fd99f0677/ee970f6175ce48fbbfa967dd0f8e55d2/FLAG97488220b [2021-11-23 01:03:56,470 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:03:56,470 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2021-11-23 01:03:56,484 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/bin/ukojak-LBtLqBUTdQ/data/fd99f0677/ee970f6175ce48fbbfa967dd0f8e55d2/FLAG97488220b [2021-11-23 01:03:56,823 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/bin/ukojak-LBtLqBUTdQ/data/fd99f0677/ee970f6175ce48fbbfa967dd0f8e55d2 [2021-11-23 01:03:56,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:03:56,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:03:56,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:03:56,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:03:56,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:03:56,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:03:56" (1/1) ... [2021-11-23 01:03:56,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c5a0ecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:56, skipping insertion in model container [2021-11-23 01:03:56,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:03:56" (1/1) ... [2021-11-23 01:03:56,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:03:56,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:03:57,033 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_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c[520,533] [2021-11-23 01:03:57,050 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:03:57,057 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:03:57,070 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_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c[520,533] [2021-11-23 01:03:57,076 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:03:57,089 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:03:57,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:57 WrapperNode [2021-11-23 01:03:57,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:03:57,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:03:57,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:03:57,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:03:57,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:57" (1/1) ... [2021-11-23 01:03:57,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:57" (1/1) ... [2021-11-23 01:03:57,128 INFO L137 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2021-11-23 01:03:57,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:03:57,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:03:57,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:03:57,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:03:57,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:57" (1/1) ... [2021-11-23 01:03:57,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:57" (1/1) ... [2021-11-23 01:03:57,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:57" (1/1) ... [2021-11-23 01:03:57,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:57" (1/1) ... [2021-11-23 01:03:57,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:57" (1/1) ... [2021-11-23 01:03:57,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:57" (1/1) ... [2021-11-23 01:03:57,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:57" (1/1) ... [2021-11-23 01:03:57,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:03:57,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:03:57,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:03:57,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:03:57,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:57" (1/1) ... [2021-11-23 01:03:57,158 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:03:57,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:03:57,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:03:57,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:03:57,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:03:57,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:03:57,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:03:57,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:03:57,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:03:57,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:03:57,305 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:03:57,308 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:03:57,491 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:03:57,527 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:03:57,527 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:03:57,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:03:57 BoogieIcfgContainer [2021-11-23 01:03:57,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:03:57,534 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:03:57,535 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:03:57,544 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:03:57,545 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:03:57" (1/1) ... [2021-11-23 01:03:57,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:03:57,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:57,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2021-11-23 01:03:57,647 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2021-11-23 01:03:57,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:03:57,649 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:57,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:57,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:03:58,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:58,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2021-11-23 01:03:58,047 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2021-11-23 01:03:58,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 01:03:58,051 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:58,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:58,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:03:58,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:58,367 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:03:58,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:58,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 24 states and 40 transitions. [2021-11-23 01:03:58,593 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 40 transitions. [2021-11-23 01:03:58,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 01:03:58,594 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:58,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:58,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:03:58,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:58,795 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:03:58,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:58,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 26 states and 45 transitions. [2021-11-23 01:03:58,899 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 45 transitions. [2021-11-23 01:03:58,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:03:58,901 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:58,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:58,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:03:58,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:59,120 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 01:03:59,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:59,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 28 states and 47 transitions. [2021-11-23 01:03:59,490 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2021-11-23 01:03:59,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:03:59,491 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:59,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:59,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:03:59,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:59,696 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:03:59,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:59,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 52 transitions. [2021-11-23 01:03:59,921 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 52 transitions. [2021-11-23 01:03:59,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:03:59,922 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:59,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:59,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:03:59,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:00,095 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 01:04:00,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:00,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 33 states and 55 transitions. [2021-11-23 01:04:00,321 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2021-11-23 01:04:00,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 01:04:00,322 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:00,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:00,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 01:04:00,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:00,546 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 01:04:00,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:00,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 34 states and 57 transitions. [2021-11-23 01:04:00,839 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 57 transitions. [2021-11-23 01:04:00,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 01:04:00,840 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:00,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:00,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:00,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:04:00,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:01,149 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 01:04:01,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:01,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 34 states and 56 transitions. [2021-11-23 01:04:01,413 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2021-11-23 01:04:01,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 01:04:01,415 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:01,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:01,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:01,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:04:01,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:01,575 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 01:04:02,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:02,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 35 states and 60 transitions. [2021-11-23 01:04:02,001 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 60 transitions. [2021-11-23 01:04:02,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 01:04:02,003 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:02,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:02,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:04:02,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:02,121 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-23 01:04:02,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:02,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 36 states and 61 transitions. [2021-11-23 01:04:02,227 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 61 transitions. [2021-11-23 01:04:02,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 01:04:02,228 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:02,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:02,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 01:04:02,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:02,409 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:04:02,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:02,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 39 states and 67 transitions. [2021-11-23 01:04:02,693 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 67 transitions. [2021-11-23 01:04:02,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 01:04:02,699 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:02,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:02,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:04:02,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:02,854 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-23 01:04:02,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:02,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 39 states and 66 transitions. [2021-11-23 01:04:02,910 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 66 transitions. [2021-11-23 01:04:02,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 01:04:02,915 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:02,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:02,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:02,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 01:04:02,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:03,199 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-23 01:04:03,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:03,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 68 transitions. [2021-11-23 01:04:03,537 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 68 transitions. [2021-11-23 01:04:03,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-23 01:04:03,538 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:03,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:03,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 01:04:03,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:03,764 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 01:04:04,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:04,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 41 states and 72 transitions. [2021-11-23 01:04:04,147 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 72 transitions. [2021-11-23 01:04:04,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 01:04:04,148 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:04,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:04,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:04:04,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:04,307 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 41 proven. 7 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2021-11-23 01:04:04,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:04,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 42 states and 73 transitions. [2021-11-23 01:04:04,422 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 73 transitions. [2021-11-23 01:04:04,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 01:04:04,423 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:04,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:04,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 01:04:04,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:04,700 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 21 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 01:04:05,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:05,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 45 states and 79 transitions. [2021-11-23 01:04:05,034 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 79 transitions. [2021-11-23 01:04:05,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 01:04:05,035 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:05,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:05,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:04:05,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:05,200 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 44 proven. 7 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2021-11-23 01:04:05,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:05,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 45 states and 78 transitions. [2021-11-23 01:04:05,248 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 78 transitions. [2021-11-23 01:04:05,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 01:04:05,249 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:05,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:05,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:05,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 01:04:05,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:05,642 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 20 proven. 24 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-23 01:04:06,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:06,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 46 states and 80 transitions. [2021-11-23 01:04:06,061 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 80 transitions. [2021-11-23 01:04:06,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-23 01:04:06,062 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:06,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:06,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 01:04:06,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:06,321 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-23 01:04:06,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:06,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 47 states and 84 transitions. [2021-11-23 01:04:06,749 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 84 transitions. [2021-11-23 01:04:06,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-23 01:04:06,750 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:06,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:06,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:04:06,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:06,908 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 59 proven. 7 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-23 01:04:07,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:07,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 48 states and 85 transitions. [2021-11-23 01:04:07,037 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2021-11-23 01:04:07,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 01:04:07,038 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:07,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:07,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-23 01:04:07,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:07,682 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 47 proven. 15 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-23 01:04:09,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:09,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 36 states and 53 transitions. [2021-11-23 01:04:09,246 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2021-11-23 01:04:09,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-23 01:04:09,247 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:09,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:09,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:04:09,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:04:09,422 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 61 proven. 7 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2021-11-23 01:04:09,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:09,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 30 states and 46 transitions. [2021-11-23 01:04:09,841 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2021-11-23 01:04:09,842 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:04:09,842 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 23 iterations. [2021-11-23 01:04:09,850 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 01:04:10,313 INFO L560 CodeCheckObserver]: Invariant with dag size 33 [2021-11-23 01:04:10,323 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:04:10,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:04:10 ImpRootNode [2021-11-23 01:04:10,324 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:04:10,325 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:04:10,325 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:04:10,325 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:04:10,326 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:03:57" (3/4) ... [2021-11-23 01:04:10,328 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:04:10,334 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-23 01:04:10,338 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-11-23 01:04:10,339 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-23 01:04:10,339 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 01:04:10,339 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:04:10,380 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:04:10,381 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:04:10,382 INFO L158 Benchmark]: Toolchain (without parser) took 13555.04ms. Allocated memory was 96.5MB in the beginning and 146.8MB in the end (delta: 50.3MB). Free memory was 62.9MB in the beginning and 41.0MB in the end (delta: 22.0MB). Peak memory consumption was 71.4MB. Max. memory is 16.1GB. [2021-11-23 01:04:10,382 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:04:10,383 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.53ms. Allocated memory is still 96.5MB. Free memory was 62.7MB in the beginning and 71.6MB in the end (delta: -8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:04:10,383 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.24ms. Allocated memory is still 96.5MB. Free memory was 71.6MB in the beginning and 70.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:04:10,384 INFO L158 Benchmark]: Boogie Preprocessor took 19.24ms. Allocated memory is still 96.5MB. Free memory was 70.1MB in the beginning and 69.3MB in the end (delta: 827.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:04:10,385 INFO L158 Benchmark]: RCFGBuilder took 381.15ms. Allocated memory is still 96.5MB. Free memory was 69.0MB in the beginning and 59.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:04:10,385 INFO L158 Benchmark]: CodeCheck took 12790.03ms. Allocated memory was 96.5MB in the beginning and 146.8MB in the end (delta: 50.3MB). Free memory was 59.1MB in the beginning and 44.0MB in the end (delta: 15.1MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. [2021-11-23 01:04:10,386 INFO L158 Benchmark]: Witness Printer took 56.25ms. Allocated memory is still 146.8MB. Free memory was 44.0MB in the beginning and 41.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:04:10,389 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 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.3s, OverallIterations: 23, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1688 SdHoareTripleChecker+Valid, 13.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 403 mSDsluCounter, 1064 SdHoareTripleChecker+Invalid, 11.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 544 mSDsCounter, 2213 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5036 IncrementalHoareTripleChecker+Invalid, 7249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2213 mSolverCounterUnsat, 520 mSDtfsCounter, 5036 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6813 GetRequests, 6502 SyntacticMatches, 167 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9987 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 944 NumberOfCodeBlocks, 944 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 922 ConstructedInterpolants, 0 QuantifiedInterpolants, 2917 SizeOfPredicates, 35 NumberOfNonLiveVariables, 2612 ConjunctsInSsa, 280 ConjunctsInUnsatCore, 22 InterpolantComputations, 3 PerfectInterpolantSequences, 2618/2810 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: 14]: 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: 30]: Loop Invariant Derived loop invariant: ((((!(5 == t && 2 == a) && !(t == 1 + 2 * a && 2 == 2 * a)) && !(7 == t && 3 == a)) || (16 == s && 3 == a)) || (9 == s && 2 == a)) || (s == 2 + 2 * a && 2 == 2 * a) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.53ms. Allocated memory is still 96.5MB. Free memory was 62.7MB in the beginning and 71.6MB in the end (delta: -8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.24ms. Allocated memory is still 96.5MB. Free memory was 71.6MB in the beginning and 70.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.24ms. Allocated memory is still 96.5MB. Free memory was 70.1MB in the beginning and 69.3MB in the end (delta: 827.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 381.15ms. Allocated memory is still 96.5MB. Free memory was 69.0MB in the beginning and 59.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 12790.03ms. Allocated memory was 96.5MB in the beginning and 146.8MB in the end (delta: 50.3MB). Free memory was 59.1MB in the beginning and 44.0MB in the end (delta: 15.1MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. * Witness Printer took 56.25ms. Allocated memory is still 146.8MB. Free memory was 44.0MB in the beginning and 41.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 01:04:10,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1d9a5b1-23cb-4fa8-be90-eb3f09e0ee6b/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE