./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_8-2.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_23845880-e3f3-4ae5-93e2-cfea78db2429/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23845880-e3f3-4ae5-93e2-cfea78db2429/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_23845880-e3f3-4ae5-93e2-cfea78db2429/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23845880-e3f3-4ae5-93e2-cfea78db2429/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_8-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23845880-e3f3-4ae5-93e2-cfea78db2429/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_23845880-e3f3-4ae5-93e2-cfea78db2429/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 5952061731474d390646c291ccf1d0136c1d856e30481accbc86db371431d703 --- 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 16:54:25,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:54:25,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:54:25,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:54:25,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:54:25,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:54:25,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:54:25,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:54:25,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:54:25,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:54:25,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:54:25,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:54:25,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:54:25,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:54:25,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:54:25,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:54:25,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:54:25,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:54:25,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:54:25,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:54:25,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:54:25,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:54:25,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:54:25,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:54:25,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:54:25,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:54:25,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:54:25,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:54:25,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:54:25,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:54:25,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:54:25,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:54:25,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:54:25,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:54:25,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:54:25,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:54:25,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:54:25,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:54:25,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:54:25,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:54:25,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:54:25,299 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23845880-e3f3-4ae5-93e2-cfea78db2429/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:54:25,344 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:54:25,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:54:25,349 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:54:25,349 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:54:25,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:54:25,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:54:25,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:54:25,351 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:54:25,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:54:25,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:54:25,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:54:25,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:54:25,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:54:25,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:54:25,354 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:54:25,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:54:25,354 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:54:25,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:54:25,355 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:54:25,355 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:54:25,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:54:25,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:54:25,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:54:25,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:54:25,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:54:25,357 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:54:25,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:54:25,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:54:25,359 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_23845880-e3f3-4ae5-93e2-cfea78db2429/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23845880-e3f3-4ae5-93e2-cfea78db2429/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5952061731474d390646c291ccf1d0136c1d856e30481accbc86db371431d703 [2022-10-17 16:54:25,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:54:25,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:54:25,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:54:25,721 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:54:25,723 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:54:25,725 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23845880-e3f3-4ae5-93e2-cfea78db2429/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/recursive-simple/fibo_2calls_8-2.c [2022-10-17 16:54:25,797 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23845880-e3f3-4ae5-93e2-cfea78db2429/bin/ukojak-92XMlrwhuB/data/1596b57de/c89826c1ede642f4b1cfcc38172ea337/FLAG0b0dba376 [2022-10-17 16:54:26,344 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:54:26,345 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23845880-e3f3-4ae5-93e2-cfea78db2429/sv-benchmarks/c/recursive-simple/fibo_2calls_8-2.c [2022-10-17 16:54:26,352 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23845880-e3f3-4ae5-93e2-cfea78db2429/bin/ukojak-92XMlrwhuB/data/1596b57de/c89826c1ede642f4b1cfcc38172ea337/FLAG0b0dba376 [2022-10-17 16:54:26,724 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23845880-e3f3-4ae5-93e2-cfea78db2429/bin/ukojak-92XMlrwhuB/data/1596b57de/c89826c1ede642f4b1cfcc38172ea337 [2022-10-17 16:54:26,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:54:26,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:54:26,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:54:26,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:54:26,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:54:26,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:54:26" (1/1) ... [2022-10-17 16:54:26,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@680abe96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:26, skipping insertion in model container [2022-10-17 16:54:26,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:54:26" (1/1) ... [2022-10-17 16:54:26,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:54:26,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:54:27,031 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_23845880-e3f3-4ae5-93e2-cfea78db2429/sv-benchmarks/c/recursive-simple/fibo_2calls_8-2.c[947,960] [2022-10-17 16:54:27,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:54:27,045 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:54:27,062 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_23845880-e3f3-4ae5-93e2-cfea78db2429/sv-benchmarks/c/recursive-simple/fibo_2calls_8-2.c[947,960] [2022-10-17 16:54:27,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:54:27,077 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:54:27,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:27 WrapperNode [2022-10-17 16:54:27,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:54:27,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:54:27,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:54:27,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:54:27,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:27" (1/1) ... [2022-10-17 16:54:27,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:27" (1/1) ... [2022-10-17 16:54:27,111 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-10-17 16:54:27,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:54:27,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:54:27,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:54:27,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:54:27,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:27" (1/1) ... [2022-10-17 16:54:27,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:27" (1/1) ... [2022-10-17 16:54:27,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:27" (1/1) ... [2022-10-17 16:54:27,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:27" (1/1) ... [2022-10-17 16:54:27,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:27" (1/1) ... [2022-10-17 16:54:27,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:27" (1/1) ... [2022-10-17 16:54:27,131 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:27" (1/1) ... [2022-10-17 16:54:27,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:27" (1/1) ... [2022-10-17 16:54:27,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:54:27,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:54:27,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:54:27,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:54:27,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:27" (1/1) ... [2022-10-17 16:54:27,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:54:27,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23845880-e3f3-4ae5-93e2-cfea78db2429/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:54:27,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23845880-e3f3-4ae5-93e2-cfea78db2429/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:54:27,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23845880-e3f3-4ae5-93e2-cfea78db2429/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:54:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:54:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:54:27,229 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2022-10-17 16:54:27,229 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2022-10-17 16:54:27,229 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2022-10-17 16:54:27,229 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2022-10-17 16:54:27,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:54:27,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:54:27,299 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:54:27,302 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:54:27,496 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:54:27,524 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:54:27,525 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:54:27,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:54:27 BoogieIcfgContainer [2022-10-17 16:54:27,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:54:27,529 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:54:27,529 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:54:27,540 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:54:27,555 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:54:27" (1/1) ... [2022-10-17 16:54:27,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:54:27,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:27,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2022-10-17 16:54:27,658 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-10-17 16:54:27,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:54:27,663 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:27,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:28,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:54:28,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:28,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 30 states and 39 transitions. [2022-10-17 16:54:28,096 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2022-10-17 16:54:28,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:54:28,097 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:28,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:28,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:54:28,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:28,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 34 states and 46 transitions. [2022-10-17 16:54:28,344 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2022-10-17 16:54:28,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-17 16:54:28,346 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:28,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:28,570 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:54:28,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:28,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 36 states and 50 transitions. [2022-10-17 16:54:28,736 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2022-10-17 16:54:28,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 16:54:28,740 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:28,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:28,993 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:54:29,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:29,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 43 states and 66 transitions. [2022-10-17 16:54:29,702 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 66 transitions. [2022-10-17 16:54:29,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-17 16:54:29,704 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:29,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:29,871 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:54:30,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:30,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 45 states and 69 transitions. [2022-10-17 16:54:30,290 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 69 transitions. [2022-10-17 16:54:30,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-17 16:54:30,292 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:30,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:30,651 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-17 16:54:31,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:31,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 45 states and 66 transitions. [2022-10-17 16:54:31,389 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 66 transitions. [2022-10-17 16:54:31,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 16:54:31,396 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:31,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:31,656 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:54:33,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:33,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 57 states and 95 transitions. [2022-10-17 16:54:33,135 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 95 transitions. [2022-10-17 16:54:33,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-17 16:54:33,138 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:33,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:33,292 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-17 16:54:33,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:33,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 57 states and 94 transitions. [2022-10-17 16:54:33,537 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 94 transitions. [2022-10-17 16:54:33,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 16:54:33,541 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:33,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:34,062 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-17 16:54:35,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:35,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 62 states and 104 transitions. [2022-10-17 16:54:35,730 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 104 transitions. [2022-10-17 16:54:35,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-17 16:54:35,738 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:35,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:36,020 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 8 proven. 39 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-17 16:54:37,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:37,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 74 states and 132 transitions. [2022-10-17 16:54:37,404 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 132 transitions. [2022-10-17 16:54:37,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-17 16:54:37,406 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:37,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:37,544 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 16 proven. 77 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-10-17 16:54:37,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:37,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 76 states and 134 transitions. [2022-10-17 16:54:37,832 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 134 transitions. [2022-10-17 16:54:37,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-10-17 16:54:37,841 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:37,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:38,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1608 backedges. 59 proven. 341 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2022-10-17 16:54:39,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:39,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 86 states and 162 transitions. [2022-10-17 16:54:39,810 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 162 transitions. [2022-10-17 16:54:39,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-10-17 16:54:39,814 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:39,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:40,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 51 proven. 299 refuted. 0 times theorem prover too weak. 898 trivial. 0 not checked. [2022-10-17 16:54:40,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:40,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 88 states and 164 transitions. [2022-10-17 16:54:40,542 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 164 transitions. [2022-10-17 16:54:40,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-10-17 16:54:40,546 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:40,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:40,802 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 44 proven. 193 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2022-10-17 16:54:41,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:41,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 90 states and 166 transitions. [2022-10-17 16:54:41,124 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 166 transitions. [2022-10-17 16:54:41,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-17 16:54:41,126 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:41,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:41,798 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 116 proven. 121 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-10-17 16:54:42,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:42,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 90 states and 165 transitions. [2022-10-17 16:54:42,674 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 165 transitions. [2022-10-17 16:54:42,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-10-17 16:54:42,679 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:42,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:43,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2003 backedges. 71 proven. 461 refuted. 0 times theorem prover too weak. 1471 trivial. 0 not checked. [2022-10-17 16:54:44,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:44,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 100 states and 195 transitions. [2022-10-17 16:54:44,914 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 195 transitions. [2022-10-17 16:54:44,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-10-17 16:54:44,919 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:44,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:45,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2245 backedges. 82 proven. 493 refuted. 0 times theorem prover too weak. 1670 trivial. 0 not checked. [2022-10-17 16:54:45,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:45,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 102 states and 197 transitions. [2022-10-17 16:54:45,727 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 197 transitions. [2022-10-17 16:54:45,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-10-17 16:54:45,730 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:45,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:45,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 57 proven. 313 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2022-10-17 16:54:46,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:46,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 104 states and 199 transitions. [2022-10-17 16:54:46,373 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 199 transitions. [2022-10-17 16:54:46,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2022-10-17 16:54:46,377 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:46,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:47,619 INFO L134 CoverageAnalysis]: Checked inductivity of 5744 backedges. 629 proven. 754 refuted. 0 times theorem prover too weak. 4361 trivial. 0 not checked. [2022-10-17 16:54:48,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:48,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 104 states and 197 transitions. [2022-10-17 16:54:48,201 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 197 transitions. [2022-10-17 16:54:48,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2022-10-17 16:54:48,206 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:48,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:49,114 INFO L134 CoverageAnalysis]: Checked inductivity of 7290 backedges. 207 proven. 1061 refuted. 0 times theorem prover too weak. 6022 trivial. 0 not checked. [2022-10-17 16:54:51,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:51,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 116 states and 230 transitions. [2022-10-17 16:54:51,087 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 230 transitions. [2022-10-17 16:54:51,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-10-17 16:54:51,092 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:51,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:51,790 INFO L134 CoverageAnalysis]: Checked inductivity of 6508 backedges. 195 proven. 997 refuted. 0 times theorem prover too weak. 5316 trivial. 0 not checked. [2022-10-17 16:54:52,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:52,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 118 states and 232 transitions. [2022-10-17 16:54:52,192 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 232 transitions. [2022-10-17 16:54:52,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2022-10-17 16:54:52,197 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:52,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:52,864 INFO L134 CoverageAnalysis]: Checked inductivity of 8529 backedges. 275 proven. 725 refuted. 0 times theorem prover too weak. 7529 trivial. 0 not checked. [2022-10-17 16:54:53,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:53,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 118 states and 231 transitions. [2022-10-17 16:54:53,297 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 231 transitions. [2022-10-17 16:54:53,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2022-10-17 16:54:53,304 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:53,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:54,759 INFO L134 CoverageAnalysis]: Checked inductivity of 14593 backedges. 573 proven. 839 refuted. 0 times theorem prover too weak. 13181 trivial. 0 not checked.