./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46924283-82c6-4539-a49a-e970e9fa6a30/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46924283-82c6-4539-a49a-e970e9fa6a30/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46924283-82c6-4539-a49a-e970e9fa6a30/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46924283-82c6-4539-a49a-e970e9fa6a30/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46924283-82c6-4539-a49a-e970e9fa6a30/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46924283-82c6-4539-a49a-e970e9fa6a30/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3d083d1689aabbf2f9bd2c9523429b32bf33c71fcafd2ea04f6cb909fe9a2705 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:18:49,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:18:49,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:18:49,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:18:49,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:18:49,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:18:49,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:18:49,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:18:49,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:18:49,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:18:49,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:18:49,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:18:49,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:18:49,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:18:49,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:18:49,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:18:49,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:18:49,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:18:49,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:18:49,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:18:49,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:18:49,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:18:49,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:18:49,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:18:49,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:18:49,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:18:49,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:18:49,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:18:49,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:18:49,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:18:49,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:18:49,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:18:49,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:18:49,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:18:49,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:18:49,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:18:49,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:18:49,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:18:49,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:18:49,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:18:49,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:18:49,978 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46924283-82c6-4539-a49a-e970e9fa6a30/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:18:50,023 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:18:50,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:18:50,025 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:18:50,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:18:50,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:18:50,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:18:50,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:18:50,027 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:18:50,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:18:50,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:18:50,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:18:50,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:18:50,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:18:50,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:18:50,030 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:18:50,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:18:50,031 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:18:50,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:18:50,031 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:18:50,032 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:18:50,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:18:50,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:18:50,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:18:50,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:18:50,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:18:50,033 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:18:50,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:18:50,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:18:50,034 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_46924283-82c6-4539-a49a-e970e9fa6a30/bin/ukojak-LBtLqBUTdQ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46924283-82c6-4539-a49a-e970e9fa6a30/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d083d1689aabbf2f9bd2c9523429b32bf33c71fcafd2ea04f6cb909fe9a2705 [2021-11-22 23:18:50,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:18:50,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:18:50,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:18:50,425 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:18:50,437 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:18:50,439 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46924283-82c6-4539-a49a-e970e9fa6a30/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound100.c [2021-11-22 23:18:50,535 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46924283-82c6-4539-a49a-e970e9fa6a30/bin/ukojak-LBtLqBUTdQ/data/30e53eca1/bf7a98905343439dad2dc8a4721c0268/FLAGc37ac7ea4 [2021-11-22 23:18:51,078 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:18:51,080 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46924283-82c6-4539-a49a-e970e9fa6a30/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound100.c [2021-11-22 23:18:51,093 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46924283-82c6-4539-a49a-e970e9fa6a30/bin/ukojak-LBtLqBUTdQ/data/30e53eca1/bf7a98905343439dad2dc8a4721c0268/FLAGc37ac7ea4 [2021-11-22 23:18:51,424 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46924283-82c6-4539-a49a-e970e9fa6a30/bin/ukojak-LBtLqBUTdQ/data/30e53eca1/bf7a98905343439dad2dc8a4721c0268 [2021-11-22 23:18:51,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:18:51,429 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:18:51,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:18:51,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:18:51,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:18:51,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:18:51" (1/1) ... [2021-11-22 23:18:51,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6222de0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:51, skipping insertion in model container [2021-11-22 23:18:51,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:18:51" (1/1) ... [2021-11-22 23:18:51,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:18:51,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:18:51,667 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_46924283-82c6-4539-a49a-e970e9fa6a30/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound100.c[454,467] [2021-11-22 23:18:51,679 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:18:51,686 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:18:51,698 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_46924283-82c6-4539-a49a-e970e9fa6a30/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound100.c[454,467] [2021-11-22 23:18:51,703 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:18:51,715 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:18:51,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:51 WrapperNode [2021-11-22 23:18:51,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:18:51,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:18:51,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:18:51,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:18:51,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:51" (1/1) ... [2021-11-22 23:18:51,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:51" (1/1) ... [2021-11-22 23:18:51,751 INFO L137 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2021-11-22 23:18:51,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:18:51,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:18:51,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:18:51,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:18:51,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:51" (1/1) ... [2021-11-22 23:18:51,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:51" (1/1) ... [2021-11-22 23:18:51,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:51" (1/1) ... [2021-11-22 23:18:51,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:51" (1/1) ... [2021-11-22 23:18:51,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:51" (1/1) ... [2021-11-22 23:18:51,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:51" (1/1) ... [2021-11-22 23:18:51,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:51" (1/1) ... [2021-11-22 23:18:51,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:18:51,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:18:51,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:18:51,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:18:51,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:51" (1/1) ... [2021-11-22 23:18:51,788 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:18:51,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46924283-82c6-4539-a49a-e970e9fa6a30/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:18:51,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46924283-82c6-4539-a49a-e970e9fa6a30/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:18:51,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46924283-82c6-4539-a49a-e970e9fa6a30/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:18:51,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:18:51,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:18:51,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:18:51,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:18:51,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-22 23:18:51,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-22 23:18:51,950 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:18:51,951 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:18:52,099 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:18:52,136 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:18:52,137 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 23:18:52,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:18:52 BoogieIcfgContainer [2021-11-22 23:18:52,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:18:52,145 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-22 23:18:52,145 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-22 23:18:52,157 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-22 23:18:52,157 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:18:52" (1/1) ... [2021-11-22 23:18:52,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:18:52,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:52,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2021-11-22 23:18:52,243 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-11-22 23:18:52,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-22 23:18:52,246 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:52,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:52,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 23:18:52,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:52,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:18:52,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:52,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2021-11-22 23:18:52,665 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2021-11-22 23:18:52,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-22 23:18:52,670 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:52,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:52,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:18:52,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:52,952 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:18:53,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:53,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2021-11-22 23:18:53,210 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2021-11-22 23:18:53,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 23:18:53,211 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:53,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:53,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:53,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-22 23:18:53,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:53,331 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:18:53,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:53,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2021-11-22 23:18:53,586 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2021-11-22 23:18:53,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-22 23:18:53,588 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:53,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:53,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 23:18:53,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:53,808 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-22 23:18:54,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:54,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2021-11-22 23:18:54,098 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2021-11-22 23:18:54,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-22 23:18:54,099 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:54,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:54,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-22 23:18:54,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:54,318 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-22 23:18:54,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:54,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2021-11-22 23:18:54,698 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2021-11-22 23:18:54,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-22 23:18:54,699 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:54,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:54,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-22 23:18:54,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:55,027 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-22 23:18:55,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:55,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2021-11-22 23:18:55,531 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2021-11-22 23:18:55,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-22 23:18:55,533 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:55,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:55,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-22 23:18:55,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:55,928 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-22 23:18:56,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:56,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2021-11-22 23:18:56,454 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2021-11-22 23:18:56,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-22 23:18:56,456 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:56,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:56,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-22 23:18:56,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:56,858 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 12 proven. 57 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-22 23:18:57,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:57,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 39 states and 58 transitions. [2021-11-22 23:18:57,474 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 58 transitions. [2021-11-22 23:18:57,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-22 23:18:57,476 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:57,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:57,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-22 23:18:57,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:57,928 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 14 proven. 77 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-22 23:18:58,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:58,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 42 states and 63 transitions. [2021-11-22 23:18:58,657 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 63 transitions. [2021-11-22 23:18:58,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-22 23:18:58,659 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:58,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:58,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-22 23:18:58,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:59,077 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 16 proven. 100 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-22 23:19:00,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:00,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 45 states and 68 transitions. [2021-11-22 23:19:00,043 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 68 transitions. [2021-11-22 23:19:00,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-22 23:19:00,049 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:00,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:00,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-22 23:19:00,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:00,691 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-22 23:19:01,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:01,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 48 states and 73 transitions. [2021-11-22 23:19:01,877 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 73 transitions. [2021-11-22 23:19:01,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-22 23:19:01,880 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:01,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:01,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-22 23:19:01,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:02,664 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 20 proven. 155 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-22 23:19:03,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:03,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 51 states and 78 transitions. [2021-11-22 23:19:03,836 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 78 transitions. [2021-11-22 23:19:03,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-22 23:19:03,838 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:03,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:03,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-22 23:19:03,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:04,716 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 22 proven. 187 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-22 23:19:06,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:06,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 54 states and 83 transitions. [2021-11-22 23:19:06,086 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 83 transitions. [2021-11-22 23:19:06,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-22 23:19:06,088 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:06,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:06,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 55 conjunts are in the unsatisfiable core [2021-11-22 23:19:06,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:06,987 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 24 proven. 222 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-22 23:19:08,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:08,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 57 states and 88 transitions. [2021-11-22 23:19:08,569 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 88 transitions. [2021-11-22 23:19:08,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-22 23:19:08,571 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:08,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:08,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-22 23:19:08,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:09,646 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 26 proven. 260 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-22 23:19:11,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:11,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 60 states and 93 transitions. [2021-11-22 23:19:11,608 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 93 transitions. [2021-11-22 23:19:11,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-22 23:19:11,609 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:11,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:12,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-22 23:19:12,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:13,032 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 28 proven. 301 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-11-22 23:19:15,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:15,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 63 states and 98 transitions. [2021-11-22 23:19:15,147 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 98 transitions. [2021-11-22 23:19:15,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-22 23:19:15,148 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:15,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:15,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 67 conjunts are in the unsatisfiable core [2021-11-22 23:19:15,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:16,464 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 30 proven. 345 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-11-22 23:19:18,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:18,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 66 states and 103 transitions. [2021-11-22 23:19:18,991 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 103 transitions. [2021-11-22 23:19:18,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-22 23:19:18,993 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:18,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:19,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 71 conjunts are in the unsatisfiable core [2021-11-22 23:19:19,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:20,460 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 32 proven. 392 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-22 23:19:23,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:23,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 69 states and 108 transitions. [2021-11-22 23:19:23,047 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 108 transitions. [2021-11-22 23:19:23,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-22 23:19:23,049 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:23,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:23,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 75 conjunts are in the unsatisfiable core [2021-11-22 23:19:23,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:24,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 34 proven. 442 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-22 23:19:27,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:27,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 72 states and 113 transitions. [2021-11-22 23:19:27,407 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 113 transitions. [2021-11-22 23:19:27,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-22 23:19:27,409 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:27,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:27,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:27,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 79 conjunts are in the unsatisfiable core [2021-11-22 23:19:27,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:29,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 36 proven. 495 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-11-22 23:19:32,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:32,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 75 states and 118 transitions. [2021-11-22 23:19:32,371 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 118 transitions. [2021-11-22 23:19:32,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-22 23:19:32,373 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:32,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:32,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 83 conjunts are in the unsatisfiable core [2021-11-22 23:19:32,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:34,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 38 proven. 551 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-22 23:19:37,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:37,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 78 states and 123 transitions. [2021-11-22 23:19:37,733 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 123 transitions. [2021-11-22 23:19:37,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-22 23:19:37,735 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:37,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:37,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 87 conjunts are in the unsatisfiable core [2021-11-22 23:19:37,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:39,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 40 proven. 610 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-11-22 23:19:44,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:44,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 81 states and 128 transitions. [2021-11-22 23:19:44,045 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 128 transitions. [2021-11-22 23:19:44,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-22 23:19:44,047 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:44,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:44,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 91 conjunts are in the unsatisfiable core [2021-11-22 23:19:44,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:46,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 42 proven. 672 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2021-11-22 23:19:50,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:50,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 84 states and 133 transitions. [2021-11-22 23:19:50,760 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 133 transitions. [2021-11-22 23:19:50,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-22 23:19:50,761 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:50,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:50,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 95 conjunts are in the unsatisfiable core [2021-11-22 23:19:50,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:19:53,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 44 proven. 737 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-11-22 23:19:59,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:59,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 87 states and 138 transitions. [2021-11-22 23:19:59,353 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 138 transitions. [2021-11-22 23:19:59,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-22 23:19:59,355 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:59,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:59,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 99 conjunts are in the unsatisfiable core [2021-11-22 23:19:59,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:03,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 46 proven. 805 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-11-22 23:20:10,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:10,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 90 states and 143 transitions. [2021-11-22 23:20:10,521 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 143 transitions. [2021-11-22 23:20:10,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-22 23:20:10,523 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:10,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:10,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 103 conjunts are in the unsatisfiable core [2021-11-22 23:20:10,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:14,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 48 proven. 876 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2021-11-22 23:20:21,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:21,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 93 states and 148 transitions. [2021-11-22 23:20:21,757 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 148 transitions. [2021-11-22 23:20:21,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-22 23:20:21,759 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:21,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:21,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 107 conjunts are in the unsatisfiable core [2021-11-22 23:20:21,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:24,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 50 proven. 950 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2021-11-22 23:20:32,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:32,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 96 states and 153 transitions. [2021-11-22 23:20:32,094 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 153 transitions. [2021-11-22 23:20:32,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-22 23:20:32,096 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:32,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:32,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 111 conjunts are in the unsatisfiable core [2021-11-22 23:20:32,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:35,696 INFO L134 CoverageAnalysis]: Checked inductivity of 2379 backedges. 52 proven. 1027 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2021-11-22 23:20:44,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:44,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 99 states and 158 transitions. [2021-11-22 23:20:44,223 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 158 transitions. [2021-11-22 23:20:44,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-22 23:20:44,224 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:44,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:44,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 115 conjunts are in the unsatisfiable core [2021-11-22 23:20:44,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:50,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2565 backedges. 54 proven. 1107 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-11-22 23:21:00,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:21:00,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 102 states and 163 transitions. [2021-11-22 23:21:00,684 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 163 transitions. [2021-11-22 23:21:00,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-22 23:21:00,686 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:21:00,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:21:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:21:00,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 119 conjunts are in the unsatisfiable core [2021-11-22 23:21:00,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:21:06,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2758 backedges. 56 proven. 1190 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2021-11-22 23:21:17,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:21:17,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 105 states and 168 transitions. [2021-11-22 23:21:17,702 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 168 transitions. [2021-11-22 23:21:17,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-22 23:21:17,704 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:21:17,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:21:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:21:17,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 123 conjunts are in the unsatisfiable core [2021-11-22 23:21:17,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:21:23,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2958 backedges. 58 proven. 1276 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2021-11-22 23:21:35,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:21:35,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 108 states and 173 transitions. [2021-11-22 23:21:35,288 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 173 transitions. [2021-11-22 23:21:35,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-22 23:21:35,290 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:21:35,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:21:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:21:35,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 127 conjunts are in the unsatisfiable core [2021-11-22 23:21:35,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:21:43,178 INFO L134 CoverageAnalysis]: Checked inductivity of 3165 backedges. 60 proven. 1365 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2021-11-22 23:21:55,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:21:55,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 111 states and 178 transitions. [2021-11-22 23:21:55,463 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 178 transitions. [2021-11-22 23:21:55,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-22 23:21:55,464 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:21:55,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:21:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:21:55,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 131 conjunts are in the unsatisfiable core [2021-11-22 23:21:55,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:22:05,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3379 backedges. 62 proven. 1457 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2021-11-22 23:22:19,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:22:19,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 114 states and 183 transitions. [2021-11-22 23:22:19,258 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 183 transitions. [2021-11-22 23:22:19,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-11-22 23:22:19,259 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:22:19,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:22:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:22:19,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 135 conjunts are in the unsatisfiable core [2021-11-22 23:22:19,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:22:28,126 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 64 proven. 1552 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2021-11-22 23:22:43,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:22:43,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 117 states and 188 transitions. [2021-11-22 23:22:43,802 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 188 transitions. [2021-11-22 23:22:43,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-22 23:22:43,804 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:22:43,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:22:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:22:43,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 139 conjunts are in the unsatisfiable core [2021-11-22 23:22:43,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:22:52,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 66 proven. 1650 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2021-11-22 23:23:09,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:09,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 120 states and 193 transitions. [2021-11-22 23:23:09,885 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 193 transitions. [2021-11-22 23:23:09,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-22 23:23:09,887 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:09,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:10,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 143 conjunts are in the unsatisfiable core [2021-11-22 23:23:10,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:23:26,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4063 backedges. 68 proven. 1751 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2021-11-22 23:23:47,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:23:47,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 123 states and 198 transitions. [2021-11-22 23:23:47,111 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 198 transitions. [2021-11-22 23:23:47,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-11-22 23:23:47,112 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:23:47,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:23:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:23:47,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 147 conjunts are in the unsatisfiable core [2021-11-22 23:23:47,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:02,867 INFO L134 CoverageAnalysis]: Checked inductivity of 4305 backedges. 70 proven. 1855 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2021-11-22 23:24:21,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:21,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 126 states and 203 transitions. [2021-11-22 23:24:21,958 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 203 transitions. [2021-11-22 23:24:21,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-11-22 23:24:21,960 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:21,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:22,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:22,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 151 conjunts are in the unsatisfiable core [2021-11-22 23:24:22,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:24:37,276 INFO L134 CoverageAnalysis]: Checked inductivity of 4554 backedges. 72 proven. 1962 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2021-11-22 23:25:00,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:00,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 129 states and 208 transitions. [2021-11-22 23:25:00,879 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 208 transitions. [2021-11-22 23:25:00,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-11-22 23:25:00,881 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:00,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:01,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 155 conjunts are in the unsatisfiable core [2021-11-22 23:25:01,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:17,429 INFO L134 CoverageAnalysis]: Checked inductivity of 4810 backedges. 74 proven. 2072 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2021-11-22 23:25:41,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:25:41,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 132 states and 213 transitions. [2021-11-22 23:25:41,858 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 213 transitions. [2021-11-22 23:25:41,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-11-22 23:25:41,860 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:25:41,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:25:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:25:41,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 159 conjunts are in the unsatisfiable core [2021-11-22 23:25:41,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:25:59,547 INFO L134 CoverageAnalysis]: Checked inductivity of 5073 backedges. 76 proven. 2185 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2021-11-22 23:26:24,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:26:24,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 135 states and 218 transitions. [2021-11-22 23:26:24,287 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 218 transitions. [2021-11-22 23:26:24,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-11-22 23:26:24,289 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:26:24,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:26:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:26:24,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 163 conjunts are in the unsatisfiable core [2021-11-22 23:26:24,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:26:52,510 INFO L134 CoverageAnalysis]: Checked inductivity of 5343 backedges. 78 proven. 2301 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2021-11-22 23:27:16,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:27:16,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 138 states and 223 transitions. [2021-11-22 23:27:16,265 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 223 transitions. [2021-11-22 23:27:16,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2021-11-22 23:27:16,267 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:27:16,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:27:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:27:16,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 167 conjunts are in the unsatisfiable core [2021-11-22 23:27:16,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:27:35,068 INFO L134 CoverageAnalysis]: Checked inductivity of 5620 backedges. 80 proven. 2420 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2021-11-22 23:28:02,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:28:02,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 141 states and 228 transitions. [2021-11-22 23:28:02,172 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 228 transitions. [2021-11-22 23:28:02,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-22 23:28:02,174 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:28:02,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:28:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:28:02,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 171 conjunts are in the unsatisfiable core [2021-11-22 23:28:02,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:28:30,054 INFO L134 CoverageAnalysis]: Checked inductivity of 5904 backedges. 82 proven. 2542 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2021-11-22 23:28:57,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:28:57,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 144 states and 233 transitions. [2021-11-22 23:28:57,740 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 233 transitions. [2021-11-22 23:28:57,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-11-22 23:28:57,750 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:28:57,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:28:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:28:57,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 175 conjunts are in the unsatisfiable core [2021-11-22 23:28:57,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:29:26,666 INFO L134 CoverageAnalysis]: Checked inductivity of 6195 backedges. 84 proven. 2667 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2021-11-22 23:29:56,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:29:56,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 147 states and 238 transitions. [2021-11-22 23:29:56,756 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 238 transitions. [2021-11-22 23:29:56,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2021-11-22 23:29:56,758 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:29:56,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:29:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:29:56,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 179 conjunts are in the unsatisfiable core [2021-11-22 23:29:56,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:30:20,267 INFO L134 CoverageAnalysis]: Checked inductivity of 6493 backedges. 86 proven. 2795 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2021-11-22 23:30:49,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:30:49,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 150 states and 243 transitions. [2021-11-22 23:30:49,371 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 243 transitions. [2021-11-22 23:30:49,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-11-22 23:30:49,373 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:30:49,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:30:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:30:49,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 183 conjunts are in the unsatisfiable core [2021-11-22 23:30:49,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:31:29,975 INFO L134 CoverageAnalysis]: Checked inductivity of 6798 backedges. 88 proven. 2926 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2021-11-22 23:32:06,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:32:06,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 153 states and 248 transitions. [2021-11-22 23:32:06,890 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 248 transitions. [2021-11-22 23:32:06,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-11-22 23:32:06,892 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:32:06,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:32:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:32:07,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 187 conjunts are in the unsatisfiable core [2021-11-22 23:32:07,038 INFO L286 TraceCheckSpWp]: Computing forward predicates...