./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/ps2-ll.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_49701d81-910f-4459-af4f-618b467e9da7/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49701d81-910f-4459-af4f-618b467e9da7/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_49701d81-910f-4459-af4f-618b467e9da7/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49701d81-910f-4459-af4f-618b467e9da7/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/ps2-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49701d81-910f-4459-af4f-618b467e9da7/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_49701d81-910f-4459-af4f-618b467e9da7/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 179b0134270d97f57074f9ac11d0788729a2f9ba65b60cccc5fdcd06091925db --- 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 16:34:42,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:34:42,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:34:43,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:34:43,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:34:43,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:34:43,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:34:43,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:34:43,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:34:43,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:34:43,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:34:43,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:34:43,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:34:43,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:34:43,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:34:43,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:34:43,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:34:43,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:34:43,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:34:43,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:34:43,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:34:43,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:34:43,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:34:43,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:34:43,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:34:43,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:34:43,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:34:43,138 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:34:43,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:34:43,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:34:43,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:34:43,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:34:43,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:34:43,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:34:43,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:34:43,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:34:43,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:34:43,150 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:34:43,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:34:43,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:34:43,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:34:43,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49701d81-910f-4459-af4f-618b467e9da7/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:34:43,202 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:34:43,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:34:43,204 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:34:43,204 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:34:43,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:34:43,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:34:43,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:34:43,206 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:34:43,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:34:43,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:34:43,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:34:43,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:34:43,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:34:43,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:34:43,209 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:34:43,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:34:43,210 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:34:43,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:34:43,210 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:34:43,211 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:34:43,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:34:43,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:34:43,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:34:43,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:34:43,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:34:43,212 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:34:43,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:34:43,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:34:43,213 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_49701d81-910f-4459-af4f-618b467e9da7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49701d81-910f-4459-af4f-618b467e9da7/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 179b0134270d97f57074f9ac11d0788729a2f9ba65b60cccc5fdcd06091925db [2022-10-17 16:34:43,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:34:43,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:34:43,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:34:43,565 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:34:43,567 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:34:43,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49701d81-910f-4459-af4f-618b467e9da7/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench/ps2-ll.c [2022-10-17 16:34:43,652 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49701d81-910f-4459-af4f-618b467e9da7/bin/ukojak-92XMlrwhuB/data/ac8b7758d/c11899d9bd3b43768c836a54198a3612/FLAG8e2b02240 [2022-10-17 16:34:44,211 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:34:44,213 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49701d81-910f-4459-af4f-618b467e9da7/sv-benchmarks/c/nla-digbench/ps2-ll.c [2022-10-17 16:34:44,223 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49701d81-910f-4459-af4f-618b467e9da7/bin/ukojak-92XMlrwhuB/data/ac8b7758d/c11899d9bd3b43768c836a54198a3612/FLAG8e2b02240 [2022-10-17 16:34:44,555 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49701d81-910f-4459-af4f-618b467e9da7/bin/ukojak-92XMlrwhuB/data/ac8b7758d/c11899d9bd3b43768c836a54198a3612 [2022-10-17 16:34:44,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:34:44,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:34:44,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:34:44,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:34:44,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:34:44,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:34:44" (1/1) ... [2022-10-17 16:34:44,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19a29992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:44, skipping insertion in model container [2022-10-17 16:34:44,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:34:44" (1/1) ... [2022-10-17 16:34:44,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:34:44,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:34:44,821 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_49701d81-910f-4459-af4f-618b467e9da7/sv-benchmarks/c/nla-digbench/ps2-ll.c[454,467] [2022-10-17 16:34:44,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:34:44,862 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:34:44,881 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_49701d81-910f-4459-af4f-618b467e9da7/sv-benchmarks/c/nla-digbench/ps2-ll.c[454,467] [2022-10-17 16:34:44,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:34:44,914 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:34:44,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:44 WrapperNode [2022-10-17 16:34:44,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:34:44,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:34:44,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:34:44,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:34:44,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:44" (1/1) ... [2022-10-17 16:34:44,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:44" (1/1) ... [2022-10-17 16:34:44,966 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2022-10-17 16:34:44,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:34:44,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:34:44,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:34:44,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:34:44,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:44" (1/1) ... [2022-10-17 16:34:44,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:44" (1/1) ... [2022-10-17 16:34:44,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:44" (1/1) ... [2022-10-17 16:34:44,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:44" (1/1) ... [2022-10-17 16:34:44,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:44" (1/1) ... [2022-10-17 16:34:45,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:44" (1/1) ... [2022-10-17 16:34:45,004 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:44" (1/1) ... [2022-10-17 16:34:45,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:44" (1/1) ... [2022-10-17 16:34:45,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:34:45,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:34:45,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:34:45,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:34:45,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:44" (1/1) ... [2022-10-17 16:34:45,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:34:45,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49701d81-910f-4459-af4f-618b467e9da7/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:34:45,070 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49701d81-910f-4459-af4f-618b467e9da7/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:34:45,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49701d81-910f-4459-af4f-618b467e9da7/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:34:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:34:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:34:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:34:45,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:34:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:34:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:34:45,218 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:34:45,219 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:34:45,435 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:34:45,481 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:34:45,486 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:34:45,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:34:45 BoogieIcfgContainer [2022-10-17 16:34:45,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:34:45,491 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:34:45,492 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:34:45,505 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:34:45,505 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:34:45" (1/1) ... [2022-10-17 16:34:45,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:34:45,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:45,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2022-10-17 16:34:45,639 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2022-10-17 16:34:45,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:34:45,646 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:45,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:45,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 16:34:45,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:46,045 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 16:34:46,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:46,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2022-10-17 16:34:46,143 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2022-10-17 16:34:46,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:34:46,145 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:46,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:46,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:34:46,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:46,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:34:46,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:46,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2022-10-17 16:34:46,767 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2022-10-17 16:34:46,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:34:46,769 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:46,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:46,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 16:34:46,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:46,939 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:34:47,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:47,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2022-10-17 16:34:47,169 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2022-10-17 16:34:47,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 16:34:47,170 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:47,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:47,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:47,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-17 16:34:47,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:47,361 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:34:47,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:47,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2022-10-17 16:34:47,647 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2022-10-17 16:34:47,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-17 16:34:47,649 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:47,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:47,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-17 16:34:47,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:47,873 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:34:48,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:48,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2022-10-17 16:34:48,215 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2022-10-17 16:34:48,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-17 16:34:48,217 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:48,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:48,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-17 16:34:48,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:48,514 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-17 16:34:49,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:49,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2022-10-17 16:34:49,163 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2022-10-17 16:34:49,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-17 16:34:49,165 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:49,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:49,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-17 16:34:49,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:49,456 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-17 16:34:50,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:50,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2022-10-17 16:34:50,089 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2022-10-17 16:34:50,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-17 16:34:50,090 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:50,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:50,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-17 16:34:50,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:50,450 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 12 proven. 57 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-17 16:34:51,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:51,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 39 states and 58 transitions. [2022-10-17 16:34:51,105 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 58 transitions. [2022-10-17 16:34:51,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-17 16:34:51,106 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:51,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:51,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-17 16:34:51,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:51,470 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 14 proven. 77 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-17 16:34:52,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:52,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 42 states and 63 transitions. [2022-10-17 16:34:52,301 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 63 transitions. [2022-10-17 16:34:52,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-17 16:34:52,303 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:52,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:52,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 39 conjunts are in the unsatisfiable core [2022-10-17 16:34:52,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:52,756 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 16 proven. 100 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-10-17 16:34:53,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:53,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 45 states and 68 transitions. [2022-10-17 16:34:53,677 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 68 transitions. [2022-10-17 16:34:53,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-17 16:34:53,679 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:53,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:53,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:53,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 43 conjunts are in the unsatisfiable core [2022-10-17 16:34:53,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:54,169 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-10-17 16:34:55,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:55,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 48 states and 73 transitions. [2022-10-17 16:34:55,106 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 73 transitions. [2022-10-17 16:34:55,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-17 16:34:55,107 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:55,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:55,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 47 conjunts are in the unsatisfiable core [2022-10-17 16:34:55,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:55,695 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 20 proven. 155 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-10-17 16:34:56,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:56,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 51 states and 78 transitions. [2022-10-17 16:34:56,774 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 78 transitions. [2022-10-17 16:34:56,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-17 16:34:56,775 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:56,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:56,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 51 conjunts are in the unsatisfiable core [2022-10-17 16:34:56,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:57,331 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 22 proven. 187 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-10-17 16:34:58,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:58,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 54 states and 83 transitions. [2022-10-17 16:34:58,513 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 83 transitions. [2022-10-17 16:34:58,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-17 16:34:58,515 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:58,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:58,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 55 conjunts are in the unsatisfiable core [2022-10-17 16:34:58,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:34:59,245 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 24 proven. 222 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-10-17 16:35:00,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:00,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 57 states and 88 transitions. [2022-10-17 16:35:00,630 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 88 transitions. [2022-10-17 16:35:00,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-10-17 16:35:00,631 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:00,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:00,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 59 conjunts are in the unsatisfiable core [2022-10-17 16:35:00,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:35:01,525 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 26 proven. 260 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-10-17 16:35:03,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:03,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 60 states and 93 transitions. [2022-10-17 16:35:03,224 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 93 transitions. [2022-10-17 16:35:03,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-17 16:35:03,226 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:03,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:03,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 63 conjunts are in the unsatisfiable core [2022-10-17 16:35:03,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:35:04,651 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 28 proven. 301 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-10-17 16:35:06,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:06,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 63 states and 98 transitions. [2022-10-17 16:35:06,558 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 98 transitions. [2022-10-17 16:35:06,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-10-17 16:35:06,560 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:06,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:07,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 67 conjunts are in the unsatisfiable core [2022-10-17 16:35:07,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:35:07,980 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 30 proven. 345 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-10-17 16:35:09,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:09,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 66 states and 103 transitions. [2022-10-17 16:35:09,804 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 103 transitions. [2022-10-17 16:35:09,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-17 16:35:09,806 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:09,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:10,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 71 conjunts are in the unsatisfiable core [2022-10-17 16:35:10,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:35:11,372 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 32 proven. 392 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-10-17 16:35:13,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:13,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 69 states and 108 transitions. [2022-10-17 16:35:13,628 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 108 transitions. [2022-10-17 16:35:13,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-10-17 16:35:13,629 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:13,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:14,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 75 conjunts are in the unsatisfiable core [2022-10-17 16:35:14,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:35:15,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 34 proven. 442 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-10-17 16:35:18,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:18,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 72 states and 113 transitions. [2022-10-17 16:35:18,141 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 113 transitions. [2022-10-17 16:35:18,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-17 16:35:18,142 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:18,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:18,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 79 conjunts are in the unsatisfiable core [2022-10-17 16:35:18,743 INFO L286 TraceCheckSpWp]: Computing forward predicates...