./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee7647ef-307b-46ea-919f-cf7fd9ff34e2/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee7647ef-307b-46ea-919f-cf7fd9ff34e2/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee7647ef-307b-46ea-919f-cf7fd9ff34e2/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee7647ef-307b-46ea-919f-cf7fd9ff34e2/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee7647ef-307b-46ea-919f-cf7fd9ff34e2/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee7647ef-307b-46ea-919f-cf7fd9ff34e2/bin/ukojak-rkRKPMF4O4 --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 185af411ffb66b9762afca1cabf119211700e2cdb0b48054cece4906f7290e44 --- 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-2329fc7 [2022-12-14 21:56:49,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 21:56:49,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 21:56:49,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 21:56:49,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 21:56:49,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 21:56:49,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 21:56:49,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 21:56:49,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 21:56:49,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 21:56:49,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 21:56:49,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 21:56:49,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 21:56:49,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 21:56:49,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 21:56:49,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 21:56:49,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 21:56:49,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 21:56:49,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 21:56:49,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 21:56:49,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 21:56:49,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 21:56:49,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 21:56:49,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 21:56:49,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 21:56:49,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 21:56:49,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 21:56:49,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 21:56:49,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 21:56:49,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 21:56:49,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 21:56:49,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 21:56:49,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 21:56:49,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 21:56:49,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 21:56:49,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 21:56:49,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 21:56:49,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 21:56:49,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 21:56:49,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 21:56:49,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 21:56:49,869 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee7647ef-307b-46ea-919f-cf7fd9ff34e2/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-14 21:56:49,893 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 21:56:49,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 21:56:49,894 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 21:56:49,894 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 21:56:49,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 21:56:49,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 21:56:49,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 21:56:49,896 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 21:56:49,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 21:56:49,896 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 21:56:49,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 21:56:49,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 21:56:49,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 21:56:49,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 21:56:49,897 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 21:56:49,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 21:56:49,897 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 21:56:49,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 21:56:49,898 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 21:56:49,898 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 21:56:49,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 21:56:49,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:56:49,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 21:56:49,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 21:56:49,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 21:56:49,899 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 21:56:49,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 21:56:49,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 21:56:49,900 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_ee7647ef-307b-46ea-919f-cf7fd9ff34e2/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee7647ef-307b-46ea-919f-cf7fd9ff34e2/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 185af411ffb66b9762afca1cabf119211700e2cdb0b48054cece4906f7290e44 [2022-12-14 21:56:50,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 21:56:50,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 21:56:50,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 21:56:50,102 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 21:56:50,103 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 21:56:50,103 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee7647ef-307b-46ea-919f-cf7fd9ff34e2/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c [2022-12-14 21:56:52,799 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 21:56:52,968 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 21:56:52,969 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee7647ef-307b-46ea-919f-cf7fd9ff34e2/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c [2022-12-14 21:56:52,975 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee7647ef-307b-46ea-919f-cf7fd9ff34e2/bin/ukojak-rkRKPMF4O4/data/16ef6e49f/bf9c37f44d284af7b9e4067d4f941878/FLAG71f9d39cf [2022-12-14 21:56:52,987 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee7647ef-307b-46ea-919f-cf7fd9ff34e2/bin/ukojak-rkRKPMF4O4/data/16ef6e49f/bf9c37f44d284af7b9e4067d4f941878 [2022-12-14 21:56:52,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 21:56:52,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 21:56:52,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 21:56:52,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 21:56:52,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 21:56:52,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:56:52" (1/1) ... [2022-12-14 21:56:52,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58ba99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:56:52, skipping insertion in model container [2022-12-14 21:56:52,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:56:52" (1/1) ... [2022-12-14 21:56:53,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 21:56:53,016 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 21:56:53,140 WARN L237 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_ee7647ef-307b-46ea-919f-cf7fd9ff34e2/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c[525,538] [2022-12-14 21:56:53,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:56:53,173 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 21:56:53,184 WARN L237 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_ee7647ef-307b-46ea-919f-cf7fd9ff34e2/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c[525,538] [2022-12-14 21:56:53,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:56:53,208 INFO L208 MainTranslator]: Completed translation [2022-12-14 21:56:53,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:56:53 WrapperNode [2022-12-14 21:56:53,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 21:56:53,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 21:56:53,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 21:56:53,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 21:56:53,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:56:53" (1/1) ... [2022-12-14 21:56:53,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:56:53" (1/1) ... [2022-12-14 21:56:53,234 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-12-14 21:56:53,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 21:56:53,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 21:56:53,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 21:56:53,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 21:56:53,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:56:53" (1/1) ... [2022-12-14 21:56:53,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:56:53" (1/1) ... [2022-12-14 21:56:53,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:56:53" (1/1) ... [2022-12-14 21:56:53,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:56:53" (1/1) ... [2022-12-14 21:56:53,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:56:53" (1/1) ... [2022-12-14 21:56:53,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:56:53" (1/1) ... [2022-12-14 21:56:53,254 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:56:53" (1/1) ... [2022-12-14 21:56:53,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:56:53" (1/1) ... [2022-12-14 21:56:53,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 21:56:53,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 21:56:53,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 21:56:53,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 21:56:53,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:56:53" (1/1) ... [2022-12-14 21:56:53,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:56:53,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee7647ef-307b-46ea-919f-cf7fd9ff34e2/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 21:56:53,286 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee7647ef-307b-46ea-919f-cf7fd9ff34e2/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 21:56:53,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee7647ef-307b-46ea-919f-cf7fd9ff34e2/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 21:56:53,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 21:56:53,321 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 21:56:53,321 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 21:56:53,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 21:56:53,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 21:56:53,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 21:56:53,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 21:56:53,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 21:56:53,379 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 21:56:53,381 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 21:56:53,562 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 21:56:53,585 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 21:56:53,586 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 21:56:53,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:56:53 BoogieIcfgContainer [2022-12-14 21:56:53,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 21:56:53,588 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 21:56:53,588 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 21:56:53,596 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 21:56:53,596 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:56:53" (1/1) ... [2022-12-14 21:56:53,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 21:56:53,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:56:53,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 40 transitions. [2022-12-14 21:56:53,643 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2022-12-14 21:56:53,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 21:56:53,649 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:56:53,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:56:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:56:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:56:53,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 21:56:53,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 21:56:53,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 21:56:53,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:56:53,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2022-12-14 21:56:53,848 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2022-12-14 21:56:53,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 21:56:53,849 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:56:53,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:56:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:56:54,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 21:57:04,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 21:57:04,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:57:04,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 55 transitions. [2022-12-14 21:57:04,493 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2022-12-14 21:57:04,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 21:57:04,494 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:57:04,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:57:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:57:04,774 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 21:57:05,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:57:05,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 37 states and 64 transitions. [2022-12-14 21:57:05,074 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 64 transitions. [2022-12-14 21:57:05,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 21:57:05,075 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:57:05,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:57:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:57:05,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 21:57:05,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 21:57:05,308 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 21:57:06,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:57:06,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 40 states and 70 transitions. [2022-12-14 21:57:06,063 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 70 transitions. [2022-12-14 21:57:06,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 21:57:06,064 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:57:06,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:57:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:57:06,381 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 21:57:06,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:57:06,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 44 states and 74 transitions. [2022-12-14 21:57:06,936 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 74 transitions. [2022-12-14 21:57:06,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 21:57:06,937 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:57:06,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:57:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:57:06,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 21:57:06,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 21:57:07,148 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 21:57:07,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:57:07,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 47 states and 80 transitions. [2022-12-14 21:57:08,000 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 80 transitions. [2022-12-14 21:57:08,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 21:57:08,001 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:57:08,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:57:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:57:08,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 21:57:08,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 21:57:09,684 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 21:57:22,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 21:57:32,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 21:57:42,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 21:57:42,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:57:42,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 51 states and 89 transitions. [2022-12-14 21:57:42,324 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 89 transitions. [2022-12-14 21:57:42,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 21:57:42,326 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:57:42,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:57:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:57:42,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 21:57:42,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 21:57:42,780 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 21:57:43,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:57:43,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 45 states and 78 transitions. [2022-12-14 21:57:43,243 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 78 transitions. [2022-12-14 21:57:43,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 21:57:43,243 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:57:43,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:57:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:57:43,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 21:57:43,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 21:57:46,109 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 21:57:49,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:57:49,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 48 states and 82 transitions. [2022-12-14 21:57:49,315 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 82 transitions. [2022-12-14 21:57:49,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 21:57:49,316 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:57:49,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:57:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:57:49,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 21:57:49,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 21:57:55,675 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 21:58:11,420 WARN L233 SmtUtils]: Spent 6.83s on a formula simplification. DAG size of input: 23 DAG size of output: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 21:58:23,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 21:58:25,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 21:58:25,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:58:25,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 50 states and 88 transitions. [2022-12-14 21:58:25,990 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 88 transitions. [2022-12-14 21:58:25,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 21:58:25,991 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:58:25,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:58:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:58:26,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 21:58:26,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 21:58:43,885 WARN L233 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 21:58:43,902 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 21:59:21,994 WARN L233 SmtUtils]: Spent 10.85s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 21:59:24,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 21:59:42,209 WARN L233 SmtUtils]: Spent 6.54s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 21:59:42,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:59:42,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 52 states and 94 transitions. [2022-12-14 21:59:42,631 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 94 transitions. [2022-12-14 21:59:42,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 21:59:42,632 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:59:42,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:59:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:59:42,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 21:59:42,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:01:34,746 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 22:03:13,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 22:03:24,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 22:03:24,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:03:24,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 54 states and 101 transitions. [2022-12-14 22:03:24,555 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 101 transitions. [2022-12-14 22:03:24,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 22:03:24,556 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:03:24,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:03:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:03:24,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 22:03:24,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:05:49,313 WARN L233 SmtUtils]: Spent 20.19s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 22:05:49,333 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 22:06:11,363 WARN L233 SmtUtils]: Spent 8.79s on a formula simplification. DAG size of input: 23 DAG size of output: 21 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 22:07:33,402 WARN L233 SmtUtils]: Spent 35.04s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 22:09:01,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:09:01,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 55 states and 103 transitions. [2022-12-14 22:09:01,722 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 103 transitions. [2022-12-14 22:09:01,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-14 22:09:01,723 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:09:01,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:09:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:09:01,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 22:09:01,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 22:09:18,477 WARN L233 SmtUtils]: Spent 6.26s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 22:11:53,670 WARN L233 SmtUtils]: Spent 15.63s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 22:11:53,720 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 20 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.