./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound20.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_4a154add-be2a-4bc9-9a82-feb050299530/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a154add-be2a-4bc9-9a82-feb050299530/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_4a154add-be2a-4bc9-9a82-feb050299530/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a154add-be2a-4bc9-9a82-feb050299530/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a154add-be2a-4bc9-9a82-feb050299530/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_4a154add-be2a-4bc9-9a82-feb050299530/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 ec2a850a3cd9252437037b0e2bf289d9622078bb11b0dcb40fb1cb3d7147f7c5 --- 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 20:51:41,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 20:51:41,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 20:51:41,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 20:51:41,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 20:51:41,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 20:51:41,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 20:51:41,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 20:51:41,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 20:51:41,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 20:51:41,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 20:51:41,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 20:51:41,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 20:51:41,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 20:51:41,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 20:51:41,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 20:51:41,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 20:51:41,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 20:51:41,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 20:51:41,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 20:51:41,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 20:51:41,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 20:51:41,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 20:51:41,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 20:51:41,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 20:51:41,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 20:51:41,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 20:51:41,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 20:51:41,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 20:51:41,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 20:51:41,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 20:51:41,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 20:51:41,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 20:51:41,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 20:51:41,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 20:51:41,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 20:51:41,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 20:51:41,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 20:51:41,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 20:51:41,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 20:51:41,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 20:51:41,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a154add-be2a-4bc9-9a82-feb050299530/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-14 20:51:41,887 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 20:51:41,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 20:51:41,888 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 20:51:41,888 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 20:51:41,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 20:51:41,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 20:51:41,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 20:51:41,889 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 20:51:41,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 20:51:41,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 20:51:41,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 20:51:41,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 20:51:41,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 20:51:41,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 20:51:41,890 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 20:51:41,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 20:51:41,890 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 20:51:41,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 20:51:41,891 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 20:51:41,891 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 20:51:41,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 20:51:41,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 20:51:41,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 20:51:41,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 20:51:41,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 20:51:41,892 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 20:51:41,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 20:51:41,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 20:51:41,892 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_4a154add-be2a-4bc9-9a82-feb050299530/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a154add-be2a-4bc9-9a82-feb050299530/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec2a850a3cd9252437037b0e2bf289d9622078bb11b0dcb40fb1cb3d7147f7c5 [2022-12-14 20:51:42,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 20:51:42,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 20:51:42,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 20:51:42,115 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 20:51:42,115 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 20:51:42,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a154add-be2a-4bc9-9a82-feb050299530/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound20.c [2022-12-14 20:51:44,725 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 20:51:44,862 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 20:51:44,862 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a154add-be2a-4bc9-9a82-feb050299530/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound20.c [2022-12-14 20:51:44,869 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a154add-be2a-4bc9-9a82-feb050299530/bin/ukojak-rkRKPMF4O4/data/76a0c967b/9432c3e5f7a74d569cbc9898c014ef5a/FLAGa19eea03d [2022-12-14 20:51:44,880 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a154add-be2a-4bc9-9a82-feb050299530/bin/ukojak-rkRKPMF4O4/data/76a0c967b/9432c3e5f7a74d569cbc9898c014ef5a [2022-12-14 20:51:44,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 20:51:44,884 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 20:51:44,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 20:51:44,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 20:51:44,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 20:51:44,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:51:44" (1/1) ... [2022-12-14 20:51:44,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@570dd41a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:44, skipping insertion in model container [2022-12-14 20:51:44,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:51:44" (1/1) ... [2022-12-14 20:51:44,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 20:51:44,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 20:51:45,024 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_4a154add-be2a-4bc9-9a82-feb050299530/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound20.c[525,538] [2022-12-14 20:51:45,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 20:51:45,058 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 20:51:45,068 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_4a154add-be2a-4bc9-9a82-feb050299530/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound20.c[525,538] [2022-12-14 20:51:45,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 20:51:45,095 INFO L208 MainTranslator]: Completed translation [2022-12-14 20:51:45,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:45 WrapperNode [2022-12-14 20:51:45,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 20:51:45,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 20:51:45,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 20:51:45,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 20:51:45,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:45" (1/1) ... [2022-12-14 20:51:45,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:45" (1/1) ... [2022-12-14 20:51:45,125 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-12-14 20:51:45,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 20:51:45,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 20:51:45,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 20:51:45,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 20:51:45,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:45" (1/1) ... [2022-12-14 20:51:45,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:45" (1/1) ... [2022-12-14 20:51:45,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:45" (1/1) ... [2022-12-14 20:51:45,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:45" (1/1) ... [2022-12-14 20:51:45,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:45" (1/1) ... [2022-12-14 20:51:45,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:45" (1/1) ... [2022-12-14 20:51:45,143 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:45" (1/1) ... [2022-12-14 20:51:45,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:45" (1/1) ... [2022-12-14 20:51:45,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 20:51:45,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 20:51:45,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 20:51:45,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 20:51:45,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:45" (1/1) ... [2022-12-14 20:51:45,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 20:51:45,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a154add-be2a-4bc9-9a82-feb050299530/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 20:51:45,175 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a154add-be2a-4bc9-9a82-feb050299530/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 20:51:45,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a154add-be2a-4bc9-9a82-feb050299530/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 20:51:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 20:51:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 20:51:45,208 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 20:51:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 20:51:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 20:51:45,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 20:51:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 20:51:45,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 20:51:45,264 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 20:51:45,266 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 20:51:45,429 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 20:51:45,454 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 20:51:45,454 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 20:51:45,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:51:45 BoogieIcfgContainer [2022-12-14 20:51:45,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 20:51:45,456 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 20:51:45,456 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 20:51:45,464 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 20:51:45,464 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:51:45" (1/1) ... [2022-12-14 20:51:45,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 20:51:45,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:51:45,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 40 transitions. [2022-12-14 20:51:45,510 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2022-12-14 20:51:45,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 20:51:45,513 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:51:45,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:51:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:51:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:51:45,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 20:51:45,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:51:45,657 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 20:51:45,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:51:45,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2022-12-14 20:51:45,686 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2022-12-14 20:51:45,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 20:51:45,687 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:51:45,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:51:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:51:46,084 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 20:51:56,211 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 20:51:56,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:51:56,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 55 transitions. [2022-12-14 20:51:56,301 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2022-12-14 20:51:56,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 20:51:56,302 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:51:56,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:51:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:51:56,588 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 20:51:56,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:51:56,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 35 states and 58 transitions. [2022-12-14 20:51:56,855 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 58 transitions. [2022-12-14 20:51:56,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 20:51:56,856 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:51:56,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:51:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:51:56,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 20:51:56,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:51:57,099 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 20:51:58,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:51:58,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 38 states and 64 transitions. [2022-12-14 20:51:58,098 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 64 transitions. [2022-12-14 20:51:58,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 20:51:58,099 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:51:58,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:51:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:51:58,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 20:51:58,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:51:58,292 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 20:52:01,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 20:52:01,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:52:01,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 43 states and 73 transitions. [2022-12-14 20:52:01,058 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 73 transitions. [2022-12-14 20:52:01,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 20:52:01,058 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:52:01,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:52:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:52:01,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 20:52:01,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:52:03,130 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 20:52:06,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 20:52:16,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 20:52:26,657 WARN L539 Checker$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 20:52:26,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:52:26,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 47 states and 82 transitions. [2022-12-14 20:52:26,662 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 82 transitions. [2022-12-14 20:52:26,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 20:52:26,662 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:52:26,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:52:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:52:26,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-14 20:52:26,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:52:27,064 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 20:52:28,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:52:28,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 52 states and 92 transitions. [2022-12-14 20:52:28,433 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 92 transitions. [2022-12-14 20:52:28,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 20:52:28,434 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:52:28,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:52:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:52:28,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 20:52:28,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:52:31,290 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 20:52:35,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:52:35,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 55 states and 96 transitions. [2022-12-14 20:52:35,096 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 96 transitions. [2022-12-14 20:52:35,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 20:52:35,098 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:52:35,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:52:35,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:52:35,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 20:52:35,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:52:35,842 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 20:52:41,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:52:41,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 60 states and 106 transitions. [2022-12-14 20:52:41,735 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 106 transitions. [2022-12-14 20:52:41,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 20:52:41,737 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:52:41,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:52:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:52:41,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 20:52:41,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:52:45,528 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 20:53:07,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 20:53:17,232 WARN L539 Checker$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 20:53:17,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:53:17,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 62 states and 112 transitions. [2022-12-14 20:53:17,238 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 112 transitions. [2022-12-14 20:53:17,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 20:53:17,239 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:53:17,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:53:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:53:17,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 20:53:17,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:53:27,279 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 20:53:37,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:53:37,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 65 states and 116 transitions. [2022-12-14 20:53:37,474 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 116 transitions. [2022-12-14 20:53:37,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 20:53:37,476 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:53:37,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:53:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:53:37,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 20:53:37,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:53:41,388 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 20:53:42,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:53:42,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 63 states and 112 transitions. [2022-12-14 20:53:42,329 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 112 transitions. [2022-12-14 20:53:42,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 20:53:42,330 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:53:42,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:53:42,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:53:42,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 20:53:42,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:53:54,346 WARN L233 SmtUtils]: Spent 10.85s 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 20:54:08,540 WARN L233 SmtUtils]: Spent 7.41s 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 20:54:08,557 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 20:54:35,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 20:54:37,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 20:54:37,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:54:37,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 65 states and 118 transitions. [2022-12-14 20:54:37,883 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 118 transitions. [2022-12-14 20:54:37,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 20:54:37,884 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:54:37,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:54:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:54:37,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-14 20:54:37,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:54:48,212 WARN L233 SmtUtils]: Spent 10.01s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 20:54:58,105 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 20:55:13,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:55:13,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 68 states and 122 transitions. [2022-12-14 20:55:13,674 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 122 transitions. [2022-12-14 20:55:13,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 20:55:13,675 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:55:13,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:55:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:55:13,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 20:55:13,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 20:57:01,164 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 20:58:00,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:58:00,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 70 states and 128 transitions. [2022-12-14 20:58:00,142 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 128 transitions. [2022-12-14 20:58:00,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 20:58:00,143 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:58:00,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:58:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:58:00,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 20:58:00,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 21:00:58,676 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 21:03:33,683 WARN L233 SmtUtils]: Spent 10.64s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 21:06:45,977 WARN L233 SmtUtils]: Spent 10.81s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 21:06:56,131 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 21:06:56,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:06:56,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 72 states and 134 transitions. [2022-12-14 21:06:56,144 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 134 transitions. [2022-12-14 21:06:56,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-14 21:06:56,144 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:06:56,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:06:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:06:56,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 21:06:56,176 INFO L286 TraceCheckSpWp]: Computing forward predicates...