./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.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_1c8e3978-1190-49af-ae67-4726aa401820/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8e3978-1190-49af-ae67-4726aa401820/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_1c8e3978-1190-49af-ae67-4726aa401820/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8e3978-1190-49af-ae67-4726aa401820/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8e3978-1190-49af-ae67-4726aa401820/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_1c8e3978-1190-49af-ae67-4726aa401820/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 9a8265a1502e23b0364b9cd16198377a0ca498fc346156a58eeb954c0e23f901 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:35:26,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:35:26,959 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:35:27,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:35:27,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:35:27,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:35:27,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:35:27,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:35:27,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:35:27,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:35:27,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:35:27,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:35:27,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:35:27,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:35:27,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:35:27,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:35:27,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:35:27,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:35:27,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:35:27,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:35:27,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:35:27,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:35:27,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:35:27,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:35:27,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:35:27,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:35:27,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:35:27,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:35:27,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:35:27,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:35:27,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:35:27,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:35:27,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:35:27,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:35:27,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:35:27,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:35:27,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:35:27,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:35:27,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:35:27,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:35:27,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:35:27,111 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8e3978-1190-49af-ae67-4726aa401820/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:35:27,156 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:35:27,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:35:27,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:35:27,158 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:35:27,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:35:27,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:35:27,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:35:27,160 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:35:27,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:35:27,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:35:27,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:35:27,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:35:27,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:35:27,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:35:27,169 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:35:27,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:35:27,169 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:35:27,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:35:27,170 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:35:27,170 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:35:27,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:35:27,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:35:27,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:35:27,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:35:27,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:35:27,171 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:35:27,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:35:27,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:35:27,172 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_1c8e3978-1190-49af-ae67-4726aa401820/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8e3978-1190-49af-ae67-4726aa401820/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a8265a1502e23b0364b9cd16198377a0ca498fc346156a58eeb954c0e23f901 [2021-11-23 00:35:27,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:35:27,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:35:27,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:35:27,573 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:35:27,574 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:35:27,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8e3978-1190-49af-ae67-4726aa401820/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c [2021-11-23 00:35:27,672 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8e3978-1190-49af-ae67-4726aa401820/bin/ukojak-LBtLqBUTdQ/data/586199d69/8433dd49f6c843fe8948b0655f9907c7/FLAG940f7d3cd [2021-11-23 00:35:28,178 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:35:28,179 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8e3978-1190-49af-ae67-4726aa401820/sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c [2021-11-23 00:35:28,189 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8e3978-1190-49af-ae67-4726aa401820/bin/ukojak-LBtLqBUTdQ/data/586199d69/8433dd49f6c843fe8948b0655f9907c7/FLAG940f7d3cd [2021-11-23 00:35:28,529 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8e3978-1190-49af-ae67-4726aa401820/bin/ukojak-LBtLqBUTdQ/data/586199d69/8433dd49f6c843fe8948b0655f9907c7 [2021-11-23 00:35:28,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:35:28,535 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:35:28,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:35:28,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:35:28,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:35:28,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:35:28" (1/1) ... [2021-11-23 00:35:28,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e30987a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:28, skipping insertion in model container [2021-11-23 00:35:28,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:35:28" (1/1) ... [2021-11-23 00:35:28,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:35:28,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:35:28,830 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_1c8e3978-1190-49af-ae67-4726aa401820/sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c[8209,8222] [2021-11-23 00:35:28,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:35:28,843 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:35:28,906 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_1c8e3978-1190-49af-ae67-4726aa401820/sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c[8209,8222] [2021-11-23 00:35:28,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:35:28,923 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:35:28,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:28 WrapperNode [2021-11-23 00:35:28,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:35:28,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:35:28,926 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:35:28,926 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:35:28,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:28" (1/1) ... [2021-11-23 00:35:28,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:28" (1/1) ... [2021-11-23 00:35:28,994 INFO L137 Inliner]: procedures = 22, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 274 [2021-11-23 00:35:29,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:35:29,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:35:29,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:35:29,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:35:29,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:28" (1/1) ... [2021-11-23 00:35:29,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:28" (1/1) ... [2021-11-23 00:35:29,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:28" (1/1) ... [2021-11-23 00:35:29,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:28" (1/1) ... [2021-11-23 00:35:29,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:28" (1/1) ... [2021-11-23 00:35:29,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:28" (1/1) ... [2021-11-23 00:35:29,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:28" (1/1) ... [2021-11-23 00:35:29,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:35:29,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:35:29,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:35:29,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:35:29,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:35:28" (1/1) ... [2021-11-23 00:35:29,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:35:29,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8e3978-1190-49af-ae67-4726aa401820/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:35:29,120 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8e3978-1190-49af-ae67-4726aa401820/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:35:29,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c8e3978-1190-49af-ae67-4726aa401820/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:35:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:35:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:35:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:35:29,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:35:29,310 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:35:29,313 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:35:29,766 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:35:30,137 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:35:30,137 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:35:30,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:35:30 BoogieIcfgContainer [2021-11-23 00:35:30,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:35:30,143 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:35:30,143 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:35:30,154 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:35:30,154 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:35:30" (1/1) ... [2021-11-23 00:35:30,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:35:30,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:35:30,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2021-11-23 00:35:30,238 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2021-11-23 00:35:30,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 00:35:30,240 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:35:30,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:35:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:30,739 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 00:35:30,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:35:30,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 14 states and 20 transitions. [2021-11-23 00:35:30,849 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 20 transitions. [2021-11-23 00:35:30,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 00:35:30,850 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:35:30,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:35:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:31,094 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 00:35:31,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:35:31,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 17 states and 27 transitions. [2021-11-23 00:35:31,388 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 27 transitions. [2021-11-23 00:35:31,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 00:35:31,388 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:35:31,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:35:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:31,570 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 00:35:32,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:35:32,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 21 states and 34 transitions. [2021-11-23 00:35:32,099 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 34 transitions. [2021-11-23 00:35:32,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:35:32,102 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:35:32,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:35:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:32,249 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 00:35:32,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:35:32,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 24 states and 39 transitions. [2021-11-23 00:35:32,394 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2021-11-23 00:35:32,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 00:35:32,394 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:35:32,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:35:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:34,228 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 00:35:38,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:35:38,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 34 states and 60 transitions. [2021-11-23 00:35:38,064 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 60 transitions. [2021-11-23 00:35:38,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 00:35:38,065 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:35:38,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:35:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:39,099 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:35:44,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:35:44,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 43 states and 79 transitions. [2021-11-23 00:35:44,645 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 79 transitions. [2021-11-23 00:35:44,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 00:35:44,646 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:35:44,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:35:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:45,162 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:35:49,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:35:49,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 52 states and 94 transitions. [2021-11-23 00:35:49,974 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 94 transitions. [2021-11-23 00:35:49,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 00:35:49,975 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:35:49,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:35:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:35:50,731 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 00:35:59,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:35:59,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 69 states and 141 transitions. [2021-11-23 00:35:59,836 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 141 transitions. [2021-11-23 00:35:59,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 00:35:59,837 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:35:59,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:35:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:00,755 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:36:06,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:06,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 84 states and 172 transitions. [2021-11-23 00:36:06,777 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 172 transitions. [2021-11-23 00:36:06,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 00:36:06,779 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:06,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:07,628 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:36:10,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:10,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 93 states and 200 transitions. [2021-11-23 00:36:10,969 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 200 transitions. [2021-11-23 00:36:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 00:36:10,970 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:10,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:11,154 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:36:11,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:11,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 94 states and 206 transitions. [2021-11-23 00:36:11,837 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 206 transitions. [2021-11-23 00:36:11,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 00:36:11,842 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:11,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:11,982 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:36:12,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:12,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 95 states and 211 transitions. [2021-11-23 00:36:12,825 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 211 transitions. [2021-11-23 00:36:12,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 00:36:12,827 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:12,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:13,028 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:36:13,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:13,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 96 states and 217 transitions. [2021-11-23 00:36:13,639 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 217 transitions. [2021-11-23 00:36:13,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 00:36:13,641 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:13,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:28,691 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 00:37:20,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:20,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 121 states and 292 transitions. [2021-11-23 00:37:20,732 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 292 transitions. [2021-11-23 00:37:20,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 00:37:20,733 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:20,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:29,436 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 00:37:33,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:37:33,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 122 states and 297 transitions. [2021-11-23 00:37:33,514 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 297 transitions. [2021-11-23 00:37:33,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 00:37:33,515 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:37:33,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:37:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:37:49,867 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:38:47,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:38:47,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 147 states and 370 transitions. [2021-11-23 00:38:47,929 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 370 transitions. [2021-11-23 00:38:47,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 00:38:47,930 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:38:47,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:38:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:38:49,934 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:39:32,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:32,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 170 states and 422 transitions. [2021-11-23 00:39:32,438 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 422 transitions. [2021-11-23 00:39:32,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 00:39:32,439 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:32,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:32,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:32,656 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:39:44,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:39:44,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 179 states and 454 transitions. [2021-11-23 00:39:44,617 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 454 transitions. [2021-11-23 00:39:44,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 00:39:44,619 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:39:44,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:39:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:39:53,242 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:40:01,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:40:01,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 180 states and 459 transitions. [2021-11-23 00:40:01,247 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 459 transitions. [2021-11-23 00:40:01,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 00:40:01,248 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:40:01,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:40:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:40:09,500 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:40:33,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:40:33,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 188 states and 484 transitions. [2021-11-23 00:40:33,411 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 484 transitions. [2021-11-23 00:40:33,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 00:40:33,412 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:40:33,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:40:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:40:33,590 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:40:52,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:40:52,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 196 states and 505 transitions. [2021-11-23 00:40:52,735 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 505 transitions. [2021-11-23 00:40:52,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 00:40:52,735 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:40:52,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:40:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:40:56,286 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 26 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:41:22,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:41:22,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 207 states and 555 transitions. [2021-11-23 00:41:22,923 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 555 transitions. [2021-11-23 00:41:22,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 00:41:22,923 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:41:22,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:41:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:41:23,312 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 26 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:41:29,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:41:29,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 210 states and 561 transitions. [2021-11-23 00:41:29,646 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 561 transitions. [2021-11-23 00:41:29,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 00:41:29,647 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:41:29,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:41:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:41:30,018 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 26 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:41:45,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:41:45,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 218 states and 578 transitions. [2021-11-23 00:41:45,911 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 578 transitions. [2021-11-23 00:41:45,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 00:41:45,912 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:41:45,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:41:46,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:41:49,305 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 26 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:42:00,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:00,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 226 states and 612 transitions. [2021-11-23 00:42:00,783 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 612 transitions. [2021-11-23 00:42:00,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 00:42:00,784 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:00,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:03,329 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 20 proven. 42 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 00:42:12,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:12,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 234 states and 631 transitions. [2021-11-23 00:42:12,073 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 631 transitions. [2021-11-23 00:42:12,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 00:42:12,074 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:12,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:12,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:12,480 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 20 proven. 42 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 00:42:14,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:14,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 235 states and 640 transitions. [2021-11-23 00:42:14,251 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 640 transitions. [2021-11-23 00:42:14,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 00:42:14,252 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:14,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:14,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:14,494 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 26 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:42:20,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:20,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 237 states and 645 transitions. [2021-11-23 00:42:20,105 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 645 transitions. [2021-11-23 00:42:20,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 00:42:20,106 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:20,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:20,398 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 26 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:42:21,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:21,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 238 states and 649 transitions. [2021-11-23 00:42:21,861 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 649 transitions. [2021-11-23 00:42:21,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 00:42:21,863 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:21,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:22,099 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 26 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:42:23,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:23,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 239 states and 652 transitions. [2021-11-23 00:42:23,897 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 652 transitions. [2021-11-23 00:42:23,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 00:42:23,905 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:23,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:24,281 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 20 proven. 42 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 00:42:27,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:27,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 241 states and 656 transitions. [2021-11-23 00:42:27,685 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 656 transitions. [2021-11-23 00:42:27,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 00:42:27,686 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:27,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:28,013 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 26 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:42:29,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:29,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 242 states and 669 transitions. [2021-11-23 00:42:29,846 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 669 transitions. [2021-11-23 00:42:29,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 00:42:29,847 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:29,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:30,169 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 20 proven. 42 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 00:42:32,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:32,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 243 states and 672 transitions. [2021-11-23 00:42:32,147 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 672 transitions. [2021-11-23 00:42:32,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 00:42:32,148 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:32,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:32,503 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 20 proven. 42 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 00:42:37,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:37,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 246 states and 678 transitions. [2021-11-23 00:42:37,745 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 678 transitions. [2021-11-23 00:42:37,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 00:42:37,746 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:37,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:37,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:42:37,972 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 26 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:42:39,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:42:39,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 247 states and 679 transitions. [2021-11-23 00:42:39,975 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 679 transitions. [2021-11-23 00:42:39,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 00:42:39,976 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:42:39,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:42:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:34,239 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 00:45:10,000 WARN L227 SmtUtils]: Spent 7.58s on a formula simplification. DAG size of input: 501 DAG size of output: 421 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 00:45:38,967 WARN L227 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 488 DAG size of output: 421 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 00:45:58,481 WARN L227 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 490 DAG size of output: 423 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 00:46:20,955 WARN L227 SmtUtils]: Spent 6.06s on a formula simplification. DAG size of input: 484 DAG size of output: 417 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 00:46:43,207 WARN L227 SmtUtils]: Spent 6.84s on a formula simplification. DAG size of input: 486 DAG size of output: 456 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 00:46:53,988 WARN L227 SmtUtils]: Spent 6.51s on a formula simplification. DAG size of input: 488 DAG size of output: 470 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 00:47:04,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:47:16,853 WARN L227 SmtUtils]: Spent 6.71s on a formula simplification. DAG size of input: 493 DAG size of output: 461 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 00:47:24,153 WARN L227 SmtUtils]: Spent 6.70s on a formula simplification. DAG size of input: 495 DAG size of output: 476 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 00:47:40,082 WARN L227 SmtUtils]: Spent 6.72s on a formula simplification. DAG size of input: 495 DAG size of output: 463 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 00:47:47,374 WARN L227 SmtUtils]: Spent 6.72s on a formula simplification. DAG size of input: 497 DAG size of output: 478 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)