./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound50.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_3db56323-14fb-4640-8365-6cfeee03cd12/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db56323-14fb-4640-8365-6cfeee03cd12/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_3db56323-14fb-4640-8365-6cfeee03cd12/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db56323-14fb-4640-8365-6cfeee03cd12/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db56323-14fb-4640-8365-6cfeee03cd12/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_3db56323-14fb-4640-8365-6cfeee03cd12/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 0bb6ea6333d2c4e133ad252fe2bcbc17b832f383e2bb5defb402851de157204c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:55:32,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:55:32,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:55:32,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:55:32,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:55:32,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:55:32,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:55:32,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:55:32,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:55:32,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:55:32,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:55:32,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:55:32,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:55:32,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:55:32,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:55:32,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:55:32,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:55:32,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:55:32,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:55:32,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:55:32,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:55:32,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:55:32,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:55:32,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:55:32,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:55:32,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:55:32,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:55:32,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:55:32,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:55:32,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:55:32,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:55:32,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:55:32,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:55:32,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:55:32,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:55:32,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:55:32,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:55:32,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:55:32,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:55:32,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:55:32,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:55:32,262 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db56323-14fb-4640-8365-6cfeee03cd12/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:55:32,306 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:55:32,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:55:32,308 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:55:32,308 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:55:32,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:55:32,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:55:32,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:55:32,310 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:55:32,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:55:32,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:55:32,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:55:32,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:55:32,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:55:32,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:55:32,319 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:55:32,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:55:32,320 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:55:32,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:55:32,320 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:55:32,321 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:55:32,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:55:32,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:55:32,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:55:32,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:55:32,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:55:32,322 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:55:32,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:55:32,323 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:55:32,323 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_3db56323-14fb-4640-8365-6cfeee03cd12/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db56323-14fb-4640-8365-6cfeee03cd12/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bb6ea6333d2c4e133ad252fe2bcbc17b832f383e2bb5defb402851de157204c [2021-11-23 00:55:32,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:55:32,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:55:32,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:55:32,602 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:55:32,603 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:55:32,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db56323-14fb-4640-8365-6cfeee03cd12/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound50.c [2021-11-23 00:55:32,683 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db56323-14fb-4640-8365-6cfeee03cd12/bin/ukojak-LBtLqBUTdQ/data/1bae800d1/5b2bf1149f1e49079059e7d028f7691c/FLAGc505bb195 [2021-11-23 00:55:33,159 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:55:33,160 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db56323-14fb-4640-8365-6cfeee03cd12/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound50.c [2021-11-23 00:55:33,167 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db56323-14fb-4640-8365-6cfeee03cd12/bin/ukojak-LBtLqBUTdQ/data/1bae800d1/5b2bf1149f1e49079059e7d028f7691c/FLAGc505bb195 [2021-11-23 00:55:33,550 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db56323-14fb-4640-8365-6cfeee03cd12/bin/ukojak-LBtLqBUTdQ/data/1bae800d1/5b2bf1149f1e49079059e7d028f7691c [2021-11-23 00:55:33,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:55:33,557 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:55:33,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:55:33,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:55:33,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:55:33,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:55:33" (1/1) ... [2021-11-23 00:55:33,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c03d6f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:33, skipping insertion in model container [2021-11-23 00:55:33,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:55:33" (1/1) ... [2021-11-23 00:55:33,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:55:33,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:55:33,821 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db56323-14fb-4640-8365-6cfeee03cd12/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound50.c[597,610] [2021-11-23 00:55:33,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:55:33,846 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:55:33,859 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_3db56323-14fb-4640-8365-6cfeee03cd12/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound50.c[597,610] [2021-11-23 00:55:33,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:55:33,880 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:55:33,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:33 WrapperNode [2021-11-23 00:55:33,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:55:33,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:55:33,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:55:33,883 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:55:33,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:33" (1/1) ... [2021-11-23 00:55:33,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:33" (1/1) ... [2021-11-23 00:55:33,927 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2021-11-23 00:55:33,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:55:33,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:55:33,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:55:33,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:55:33,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:33" (1/1) ... [2021-11-23 00:55:33,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:33" (1/1) ... [2021-11-23 00:55:33,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:33" (1/1) ... [2021-11-23 00:55:33,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:33" (1/1) ... [2021-11-23 00:55:33,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:33" (1/1) ... [2021-11-23 00:55:33,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:33" (1/1) ... [2021-11-23 00:55:33,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:33" (1/1) ... [2021-11-23 00:55:33,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:55:33,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:55:33,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:55:33,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:55:33,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:55:33" (1/1) ... [2021-11-23 00:55:33,962 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:55:33,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db56323-14fb-4640-8365-6cfeee03cd12/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:55:33,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db56323-14fb-4640-8365-6cfeee03cd12/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:55:34,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db56323-14fb-4640-8365-6cfeee03cd12/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:55:34,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:55:34,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:55:34,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:55:34,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:55:34,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 00:55:34,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 00:55:34,116 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:55:34,118 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:55:34,311 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:55:34,339 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:55:34,339 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:55:34,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:55:34 BoogieIcfgContainer [2021-11-23 00:55:34,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:55:34,343 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:55:34,343 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:55:34,354 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:55:34,354 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:55:34" (1/1) ... [2021-11-23 00:55:34,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:55:34,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:34,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2021-11-23 00:55:34,420 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-11-23 00:55:34,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:55:34,422 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:34,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:34,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 00:55:34,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:34,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:55:34,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:34,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2021-11-23 00:55:34,926 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2021-11-23 00:55:34,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 00:55:34,936 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:34,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:35,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:55:35,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:35,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2021-11-23 00:55:35,370 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2021-11-23 00:55:35,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 00:55:35,372 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:35,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:35,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 00:55:35,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:35,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:55:35,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:35,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 26 states and 40 transitions. [2021-11-23 00:55:35,868 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2021-11-23 00:55:35,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 00:55:35,869 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:35,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:35,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 00:55:35,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:36,214 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 00:55:36,805 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:55:39,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 00:55:39,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:39,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 49 transitions. [2021-11-23 00:55:39,092 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 49 transitions. [2021-11-23 00:55:39,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 00:55:39,093 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:39,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:39,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:55:39,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:39,276 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:55:40,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:40,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 37 states and 74 transitions. [2021-11-23 00:55:40,777 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 74 transitions. [2021-11-23 00:55:40,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 00:55:40,779 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:40,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:40,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 00:55:40,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:41,433 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:55:42,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:42,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 41 states and 90 transitions. [2021-11-23 00:55:42,582 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 90 transitions. [2021-11-23 00:55:42,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 00:55:42,583 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:42,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:42,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 00:55:42,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:43,016 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:55:43,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:43,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 42 states and 92 transitions. [2021-11-23 00:55:43,827 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 92 transitions. [2021-11-23 00:55:43,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 00:55:43,829 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:43,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:43,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 00:55:43,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:44,505 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 00:55:45,960 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:55:47,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:47,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 45 states and 105 transitions. [2021-11-23 00:55:47,849 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 105 transitions. [2021-11-23 00:55:47,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 00:55:47,851 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:47,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:47,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:55:47,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:48,101 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:55:52,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:52,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 53 states and 141 transitions. [2021-11-23 00:55:52,002 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 141 transitions. [2021-11-23 00:55:52,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 00:55:52,004 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:52,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:52,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 00:55:52,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:52,084 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:55:52,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:52,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 54 states and 142 transitions. [2021-11-23 00:55:52,660 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 142 transitions. [2021-11-23 00:55:52,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 00:55:52,663 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:52,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:52,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 00:55:52,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:53,874 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:55:56,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:56,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 58 states and 168 transitions. [2021-11-23 00:55:56,791 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 168 transitions. [2021-11-23 00:55:56,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 00:55:56,793 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:56,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:56,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 00:55:56,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:55:57,494 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:55:59,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:55:59,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 58 states and 159 transitions. [2021-11-23 00:55:59,065 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 159 transitions. [2021-11-23 00:55:59,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 00:55:59,067 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:55:59,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:55:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:55:59,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 00:55:59,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:00,496 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 00:56:01,812 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:56:06,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:06,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 61 states and 179 transitions. [2021-11-23 00:56:06,465 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 179 transitions. [2021-11-23 00:56:06,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 00:56:06,467 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:06,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:06,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:56:06,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:06,917 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:56:12,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:12,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 65 states and 192 transitions. [2021-11-23 00:56:12,866 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 192 transitions. [2021-11-23 00:56:12,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 00:56:12,869 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:12,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:12,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:56:12,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:12,963 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:56:15,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:15,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 70 states and 225 transitions. [2021-11-23 00:56:15,717 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 225 transitions. [2021-11-23 00:56:15,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 00:56:15,719 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:15,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:15,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:56:15,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:18,187 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:56:24,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:24,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 74 states and 258 transitions. [2021-11-23 00:56:24,855 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 258 transitions. [2021-11-23 00:56:24,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 00:56:24,857 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:24,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:24,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:56:24,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:26,479 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:56:29,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:29,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 74 states and 242 transitions. [2021-11-23 00:56:29,961 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 242 transitions. [2021-11-23 00:56:29,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 00:56:29,963 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:29,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:30,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-23 00:56:30,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:32,746 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 00:56:35,741 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:56:46,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:56:46,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 77 states and 271 transitions. [2021-11-23 00:56:46,223 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 271 transitions. [2021-11-23 00:56:46,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 00:56:46,224 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:56:46,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:56:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:56:46,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:56:46,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:56:47,160 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:57:04,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:04,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 85 states and 325 transitions. [2021-11-23 00:57:04,085 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 325 transitions. [2021-11-23 00:57:04,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 00:57:04,086 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:04,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:04,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:57:04,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:57:04,183 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:57:06,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:06,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 86 states and 326 transitions. [2021-11-23 00:57:06,173 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 326 transitions. [2021-11-23 00:57:06,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 00:57:06,175 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:06,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:06,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 00:57:06,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:57:12,859 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:57:28,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:28,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 90 states and 366 transitions. [2021-11-23 00:57:28,918 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 366 transitions. [2021-11-23 00:57:28,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 00:57:28,923 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:28,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:29,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 00:57:29,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:57:33,955 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:57:41,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:41,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 90 states and 341 transitions. [2021-11-23 00:57:41,955 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 341 transitions. [2021-11-23 00:57:41,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 00:57:41,957 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:41,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:42,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-23 00:57:42,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:57:47,595 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 00:57:51,916 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 10 proven. 55 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:58:03,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-23 00:58:18,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:58:18,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 93 states and 381 transitions. [2021-11-23 00:58:18,063 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 381 transitions. [2021-11-23 00:58:18,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 00:58:18,064 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:58:18,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:58:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:58:18,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 00:58:18,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:58:19,866 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:58:45,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:58:45,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 97 states and 394 transitions. [2021-11-23 00:58:45,937 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 394 transitions. [2021-11-23 00:58:45,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 00:58:45,938 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:58:45,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:58:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:58:45,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 00:58:45,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:58:46,071 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:58:57,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:58:57,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 102 states and 445 transitions. [2021-11-23 00:58:57,292 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 445 transitions. [2021-11-23 00:58:57,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 00:58:57,294 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:58:57,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:58:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:58:57,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-23 00:58:57,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:59:10,075 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 00:59:40,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:59:40,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 106 states and 492 transitions. [2021-11-23 00:59:40,773 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 492 transitions. [2021-11-23 00:59:40,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 00:59:40,775 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:59:40,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:59:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:59:40,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-23 00:59:40,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:59:50,658 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:00:01,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:00:01,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 106 states and 456 transitions. [2021-11-23 01:00:01,893 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 456 transitions. [2021-11-23 01:00:01,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 01:00:01,895 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:00:01,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:00:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:00:02,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-23 01:00:02,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:00:23,127 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 01:00:29,835 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 12 proven. 78 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:01:33,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:33,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 111 states and 514 transitions. [2021-11-23 01:01:33,185 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 514 transitions. [2021-11-23 01:01:33,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 01:01:33,187 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:33,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:33,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 01:01:33,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:01:36,770 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 12 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:02:15,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:02:15,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 115 states and 527 transitions. [2021-11-23 01:02:15,491 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 527 transitions. [2021-11-23 01:02:15,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 01:02:15,493 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:02:15,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:02:15,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:02:15,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 01:02:15,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:02:15,651 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 12 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:02:34,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:02:34,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 120 states and 587 transitions. [2021-11-23 01:02:34,812 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 587 transitions. [2021-11-23 01:02:34,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 01:02:34,815 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:02:34,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:02:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:02:35,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-23 01:02:35,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:03:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 31 proven. 85 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked.