./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Mysore-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Mysore-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e573de14d9788c77bce7065ed34a1586a64b72729dbf270f6aaf1ae9cdd54fd7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 15:38:36,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:38:36,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:38:36,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:38:36,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:38:36,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:38:36,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:38:36,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:38:36,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:38:36,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:38:36,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:38:36,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:38:36,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:38:36,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:38:36,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:38:36,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:38:36,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:38:36,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:38:36,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:38:36,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:38:36,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:38:36,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:38:36,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:38:36,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:38:36,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:38:36,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:38:36,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:38:36,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:38:36,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:38:36,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:38:36,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:38:36,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:38:36,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:38:36,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:38:36,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:38:36,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:38:36,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:38:36,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:38:36,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:38:36,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:38:36,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:38:36,204 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 15:38:36,243 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:38:36,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:38:36,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:38:36,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:38:36,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:38:36,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:38:36,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:38:36,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:38:36,247 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:38:36,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:38:36,248 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:38:36,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:38:36,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:38:36,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:38:36,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:38:36,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:38:36,250 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:38:36,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:38:36,251 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:38:36,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:38:36,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:38:36,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:38:36,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:38:36,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:38:36,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:38:36,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:38:36,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:38:36,253 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:38:36,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:38:36,254 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:38:36,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:38:36,254 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:38:36,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:38:36,255 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e573de14d9788c77bce7065ed34a1586a64b72729dbf270f6aaf1ae9cdd54fd7 [2022-11-25 15:38:36,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:38:36,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:38:36,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:38:36,616 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:38:36,616 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:38:36,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-crafted/Mysore-2.c [2022-11-25 15:38:39,666 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:38:39,891 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:38:39,892 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/sv-benchmarks/c/termination-crafted/Mysore-2.c [2022-11-25 15:38:39,899 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/data/74c48df7e/0e7b4d8e621643d1b52440b69fea1e1b/FLAG21834d141 [2022-11-25 15:38:39,914 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/data/74c48df7e/0e7b4d8e621643d1b52440b69fea1e1b [2022-11-25 15:38:39,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:38:39,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:38:39,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:38:39,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:38:39,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:38:39,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:38:39" (1/1) ... [2022-11-25 15:38:39,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58259bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:39, skipping insertion in model container [2022-11-25 15:38:39,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:38:39" (1/1) ... [2022-11-25 15:38:39,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:38:39,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:38:40,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:38:40,109 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:38:40,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:38:40,136 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:38:40,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:40 WrapperNode [2022-11-25 15:38:40,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:38:40,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:38:40,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:38:40,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:38:40,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:40" (1/1) ... [2022-11-25 15:38:40,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:40" (1/1) ... [2022-11-25 15:38:40,161 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2022-11-25 15:38:40,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:38:40,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:38:40,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:38:40,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:38:40,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:40" (1/1) ... [2022-11-25 15:38:40,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:40" (1/1) ... [2022-11-25 15:38:40,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:40" (1/1) ... [2022-11-25 15:38:40,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:40" (1/1) ... [2022-11-25 15:38:40,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:40" (1/1) ... [2022-11-25 15:38:40,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:40" (1/1) ... [2022-11-25 15:38:40,179 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:40" (1/1) ... [2022-11-25 15:38:40,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:40" (1/1) ... [2022-11-25 15:38:40,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:38:40,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:38:40,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:38:40,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:38:40,186 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:40" (1/1) ... [2022-11-25 15:38:40,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:38:40,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:38:40,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:38:40,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:38:40,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:38:40,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:38:40,333 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:38:40,335 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:38:40,460 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:38:40,467 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:38:40,467 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 15:38:40,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:38:40 BoogieIcfgContainer [2022-11-25 15:38:40,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:38:40,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:38:40,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:38:40,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:38:40,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:38:39" (1/3) ... [2022-11-25 15:38:40,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3193af3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:38:40, skipping insertion in model container [2022-11-25 15:38:40,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:40" (2/3) ... [2022-11-25 15:38:40,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3193af3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:38:40, skipping insertion in model container [2022-11-25 15:38:40,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:38:40" (3/3) ... [2022-11-25 15:38:40,479 INFO L112 eAbstractionObserver]: Analyzing ICFG Mysore-2.c [2022-11-25 15:38:40,497 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:38:40,498 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 15:38:40,550 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:38:40,557 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4af3ae76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:38:40,557 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 15:38:40,562 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:40,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 15:38:40,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:40,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 15:38:40,570 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:38:40,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:40,576 INFO L85 PathProgramCache]: Analyzing trace with hash 889571277, now seen corresponding path program 1 times [2022-11-25 15:38:40,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:40,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360221534] [2022-11-25 15:38:40,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:40,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:40,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:40,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:40,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360221534] [2022-11-25 15:38:40,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360221534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:38:40,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:38:40,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:38:40,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500628066] [2022-11-25 15:38:40,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:38:40,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:38:40,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:40,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:38:40,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:38:40,843 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:40,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:38:40,977 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2022-11-25 15:38:40,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:38:40,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-25 15:38:40,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:38:40,989 INFO L225 Difference]: With dead ends: 52 [2022-11-25 15:38:40,990 INFO L226 Difference]: Without dead ends: 32 [2022-11-25 15:38:40,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:38:40,996 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 41 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:38:40,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 27 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:38:41,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-25 15:38:41,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2022-11-25 15:38:41,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.55) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:41,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-11-25 15:38:41,062 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 6 [2022-11-25 15:38:41,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:38:41,063 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-11-25 15:38:41,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:41,064 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-11-25 15:38:41,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 15:38:41,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:41,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:38:41,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:38:41,066 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:38:41,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:41,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1806905864, now seen corresponding path program 1 times [2022-11-25 15:38:41,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:41,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689885711] [2022-11-25 15:38:41,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:41,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:41,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:41,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:41,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689885711] [2022-11-25 15:38:41,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689885711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:38:41,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:38:41,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:38:41,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002376954] [2022-11-25 15:38:41,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:38:41,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:38:41,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:41,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:38:41,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:38:41,189 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:41,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:38:41,312 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2022-11-25 15:38:41,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:38:41,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-25 15:38:41,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:38:41,315 INFO L225 Difference]: With dead ends: 31 [2022-11-25 15:38:41,315 INFO L226 Difference]: Without dead ends: 30 [2022-11-25 15:38:41,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:38:41,317 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 16 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:38:41,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 9 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:38:41,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-25 15:38:41,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2022-11-25 15:38:41,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.5) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:41,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2022-11-25 15:38:41,324 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 7 [2022-11-25 15:38:41,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:38:41,324 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-11-25 15:38:41,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:41,325 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2022-11-25 15:38:41,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 15:38:41,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:41,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:38:41,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:38:41,326 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:38:41,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:41,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1269749578, now seen corresponding path program 1 times [2022-11-25 15:38:41,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:41,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569671978] [2022-11-25 15:38:41,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:41,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:41,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:41,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:41,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569671978] [2022-11-25 15:38:41,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569671978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:38:41,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:38:41,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:38:41,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182510068] [2022-11-25 15:38:41,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:38:41,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:38:41,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:41,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:38:41,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:38:41,441 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:41,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:38:41,511 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-11-25 15:38:41,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:38:41,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 15:38:41,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:38:41,513 INFO L225 Difference]: With dead ends: 28 [2022-11-25 15:38:41,514 INFO L226 Difference]: Without dead ends: 27 [2022-11-25 15:38:41,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:38:41,522 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:38:41,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 17 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:38:41,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-25 15:38:41,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2022-11-25 15:38:41,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:41,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-11-25 15:38:41,542 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 9 [2022-11-25 15:38:41,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:38:41,543 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-11-25 15:38:41,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:41,544 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-11-25 15:38:41,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 15:38:41,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:41,545 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:38:41,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:38:41,546 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:38:41,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:41,550 INFO L85 PathProgramCache]: Analyzing trace with hash 707531316, now seen corresponding path program 1 times [2022-11-25 15:38:41,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:41,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897298913] [2022-11-25 15:38:41,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:41,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:41,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:41,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:41,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897298913] [2022-11-25 15:38:41,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897298913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:38:41,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:38:41,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:38:41,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511149279] [2022-11-25 15:38:41,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:38:41,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:38:41,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:41,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:38:41,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:38:41,639 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:41,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:38:41,695 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2022-11-25 15:38:41,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:38:41,695 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-25 15:38:41,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:38:41,696 INFO L225 Difference]: With dead ends: 36 [2022-11-25 15:38:41,696 INFO L226 Difference]: Without dead ends: 35 [2022-11-25 15:38:41,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:38:41,698 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 16 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:38:41,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 16 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:38:41,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-25 15:38:41,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 26. [2022-11-25 15:38:41,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.4) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:41,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-11-25 15:38:41,704 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 10 [2022-11-25 15:38:41,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:38:41,705 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-11-25 15:38:41,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:41,705 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-11-25 15:38:41,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 15:38:41,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:41,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:38:41,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 15:38:41,707 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:38:41,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:41,707 INFO L85 PathProgramCache]: Analyzing trace with hash 458634380, now seen corresponding path program 1 times [2022-11-25 15:38:41,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:41,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336454357] [2022-11-25 15:38:41,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:41,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:41,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:41,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:41,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336454357] [2022-11-25 15:38:41,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336454357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:38:41,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:38:41,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:38:41,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762820262] [2022-11-25 15:38:41,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:38:41,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:38:41,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:41,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:38:41,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:38:41,755 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:41,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:38:41,789 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2022-11-25 15:38:41,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:38:41,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-25 15:38:41,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:38:41,792 INFO L225 Difference]: With dead ends: 26 [2022-11-25 15:38:41,794 INFO L226 Difference]: Without dead ends: 25 [2022-11-25 15:38:41,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:38:41,796 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:38:41,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:38:41,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-25 15:38:41,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-25 15:38:41,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.3) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:41,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-11-25 15:38:41,805 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 11 [2022-11-25 15:38:41,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:38:41,805 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-11-25 15:38:41,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:41,806 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-11-25 15:38:41,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 15:38:41,806 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:41,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:38:41,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 15:38:41,807 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:38:41,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:41,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1332763958, now seen corresponding path program 1 times [2022-11-25 15:38:41,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:41,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423139511] [2022-11-25 15:38:41,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:41,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:41,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:41,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:41,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423139511] [2022-11-25 15:38:41,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423139511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:38:41,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:38:41,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:38:41,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287367567] [2022-11-25 15:38:41,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:38:41,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:38:41,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:41,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:38:41,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:38:41,926 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:41,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:38:41,973 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2022-11-25 15:38:41,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:38:41,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-25 15:38:41,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:38:41,974 INFO L225 Difference]: With dead ends: 26 [2022-11-25 15:38:41,974 INFO L226 Difference]: Without dead ends: 25 [2022-11-25 15:38:41,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:38:41,977 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:38:41,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:38:41,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-25 15:38:41,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-25 15:38:41,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.25) internal successors, (25), 24 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:41,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2022-11-25 15:38:41,993 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 12 [2022-11-25 15:38:41,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:38:41,994 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2022-11-25 15:38:41,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:41,995 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2022-11-25 15:38:41,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 15:38:41,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:41,996 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:38:41,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 15:38:41,996 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:38:41,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:41,997 INFO L85 PathProgramCache]: Analyzing trace with hash 885911064, now seen corresponding path program 1 times [2022-11-25 15:38:41,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:41,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657097172] [2022-11-25 15:38:41,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:41,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:42,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:42,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:42,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:42,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657097172] [2022-11-25 15:38:42,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657097172] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:38:42,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811950455] [2022-11-25 15:38:42,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:42,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:38:42,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:38:42,105 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:38:42,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 15:38:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:42,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:38:42,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:38:42,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:42,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:38:42,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:42,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811950455] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:38:42,274 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:38:42,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-25 15:38:42,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444191252] [2022-11-25 15:38:42,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:38:42,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 15:38:42,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:42,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 15:38:42,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:38:42,276 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:42,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:38:42,426 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2022-11-25 15:38:42,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 15:38:42,427 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-25 15:38:42,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:38:42,429 INFO L225 Difference]: With dead ends: 37 [2022-11-25 15:38:42,429 INFO L226 Difference]: Without dead ends: 36 [2022-11-25 15:38:42,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-25 15:38:42,434 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 23 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:38:42,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 9 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:38:42,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-25 15:38:42,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2022-11-25 15:38:42,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 32 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:42,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2022-11-25 15:38:42,442 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 14 [2022-11-25 15:38:42,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:38:42,442 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-11-25 15:38:42,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:42,442 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-11-25 15:38:42,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 15:38:42,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:42,443 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:38:42,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 15:38:42,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 15:38:42,650 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:38:42,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:42,651 INFO L85 PathProgramCache]: Analyzing trace with hash 957009754, now seen corresponding path program 1 times [2022-11-25 15:38:42,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:42,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550135429] [2022-11-25 15:38:42,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:42,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:42,707 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:42,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:42,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550135429] [2022-11-25 15:38:42,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550135429] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:38:42,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439352224] [2022-11-25 15:38:42,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:42,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:38:42,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:38:42,710 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:38:42,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 15:38:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:42,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:38:42,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:38:42,883 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:42,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:38:42,979 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:42,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439352224] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:38:42,981 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:38:42,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 12 [2022-11-25 15:38:42,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210472981] [2022-11-25 15:38:42,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:38:42,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 15:38:42,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:42,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 15:38:42,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:38:42,988 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:43,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:38:43,189 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2022-11-25 15:38:43,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 15:38:43,190 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-25 15:38:43,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:38:43,190 INFO L225 Difference]: With dead ends: 41 [2022-11-25 15:38:43,190 INFO L226 Difference]: Without dead ends: 39 [2022-11-25 15:38:43,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2022-11-25 15:38:43,192 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 29 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:38:43,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 21 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:38:43,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-25 15:38:43,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2022-11-25 15:38:43,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 34 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:43,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2022-11-25 15:38:43,206 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 16 [2022-11-25 15:38:43,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:38:43,206 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2022-11-25 15:38:43,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:43,207 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2022-11-25 15:38:43,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 15:38:43,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:43,207 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:38:43,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 15:38:43,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:38:43,414 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:38:43,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:43,415 INFO L85 PathProgramCache]: Analyzing trace with hash -397468636, now seen corresponding path program 1 times [2022-11-25 15:38:43,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:43,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520106684] [2022-11-25 15:38:43,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:43,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:43,486 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:43,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:43,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520106684] [2022-11-25 15:38:43,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520106684] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:38:43,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230882441] [2022-11-25 15:38:43,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:43,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:38:43,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:38:43,488 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:38:43,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 15:38:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:43,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:38:43,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:38:43,638 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:43,638 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:38:43,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230882441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:38:43,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:38:43,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-25 15:38:43,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595885385] [2022-11-25 15:38:43,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:38:43,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:38:43,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:43,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:38:43,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:38:43,641 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:43,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:38:43,711 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-11-25 15:38:43,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:38:43,712 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-25 15:38:43,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:38:43,713 INFO L225 Difference]: With dead ends: 35 [2022-11-25 15:38:43,713 INFO L226 Difference]: Without dead ends: 34 [2022-11-25 15:38:43,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:38:43,714 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:38:43,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 8 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:38:43,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-25 15:38:43,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-25 15:38:43,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 33 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:43,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2022-11-25 15:38:43,719 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 17 [2022-11-25 15:38:43,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:38:43,719 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2022-11-25 15:38:43,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:43,720 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-11-25 15:38:43,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 15:38:43,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:43,720 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 15:38:43,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 15:38:43,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-25 15:38:43,926 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:38:43,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:43,927 INFO L85 PathProgramCache]: Analyzing trace with hash 236763597, now seen corresponding path program 1 times [2022-11-25 15:38:43,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:43,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254842919] [2022-11-25 15:38:43,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:43,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:44,024 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:44,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:44,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254842919] [2022-11-25 15:38:44,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254842919] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:38:44,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719316073] [2022-11-25 15:38:44,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:44,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:38:44,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:38:44,026 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:38:44,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 15:38:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:44,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 15:38:44,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:38:44,191 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:44,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:38:44,294 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:44,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719316073] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:38:44,295 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:38:44,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-11-25 15:38:44,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116013521] [2022-11-25 15:38:44,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:38:44,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 15:38:44,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:44,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 15:38:44,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2022-11-25 15:38:44,297 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 17 states, 16 states have (on average 3.5) internal successors, (56), 17 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:44,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:38:44,511 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2022-11-25 15:38:44,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 15:38:44,511 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.5) internal successors, (56), 17 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-25 15:38:44,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:38:44,512 INFO L225 Difference]: With dead ends: 34 [2022-11-25 15:38:44,512 INFO L226 Difference]: Without dead ends: 33 [2022-11-25 15:38:44,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=200, Invalid=450, Unknown=0, NotChecked=0, Total=650 [2022-11-25 15:38:44,513 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 80 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:38:44,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 11 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:38:44,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-25 15:38:44,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-25 15:38:44,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 30 states have (on average 1.1) internal successors, (33), 32 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:44,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2022-11-25 15:38:44,518 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 20 [2022-11-25 15:38:44,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:38:44,518 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2022-11-25 15:38:44,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.5) internal successors, (56), 17 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:44,518 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2022-11-25 15:38:44,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-25 15:38:44,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:44,519 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 15:38:44,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-25 15:38:44,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:38:44,724 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:38:44,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:44,725 INFO L85 PathProgramCache]: Analyzing trace with hash 604622646, now seen corresponding path program 1 times [2022-11-25 15:38:44,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:44,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474494809] [2022-11-25 15:38:44,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:44,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:44,810 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:44,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:44,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474494809] [2022-11-25 15:38:44,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474494809] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:38:44,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831874320] [2022-11-25 15:38:44,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:44,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:38:44,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:38:44,813 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:38:44,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 15:38:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:44,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:38:44,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:38:44,922 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:44,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:38:44,996 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:44,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831874320] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:38:44,996 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:38:44,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 13 [2022-11-25 15:38:44,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556141769] [2022-11-25 15:38:44,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:38:45,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 15:38:45,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:45,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 15:38:45,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-11-25 15:38:45,002 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 14 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:45,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:38:45,241 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2022-11-25 15:38:45,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 15:38:45,241 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 14 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-25 15:38:45,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:38:45,242 INFO L225 Difference]: With dead ends: 73 [2022-11-25 15:38:45,242 INFO L226 Difference]: Without dead ends: 72 [2022-11-25 15:38:45,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2022-11-25 15:38:45,243 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 19 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:38:45,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 16 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:38:45,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-25 15:38:45,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 64. [2022-11-25 15:38:45,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 61 states have (on average 1.180327868852459) internal successors, (72), 63 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:45,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2022-11-25 15:38:45,250 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 26 [2022-11-25 15:38:45,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:38:45,251 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2022-11-25 15:38:45,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 14 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:45,251 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2022-11-25 15:38:45,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 15:38:45,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:45,252 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-11-25 15:38:45,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 15:38:45,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:38:45,453 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:38:45,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:45,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1221779480, now seen corresponding path program 2 times [2022-11-25 15:38:45,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:45,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285923773] [2022-11-25 15:38:45,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:45,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:45,550 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:45,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:45,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285923773] [2022-11-25 15:38:45,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285923773] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:38:45,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977310556] [2022-11-25 15:38:45,551 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:38:45,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:38:45,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:38:45,552 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:38:45,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 15:38:45,592 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 15:38:45,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:38:45,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 15:38:45,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:38:45,730 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 5 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:45,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:38:45,858 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:45,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977310556] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:38:45,858 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:38:45,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2022-11-25 15:38:45,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224742154] [2022-11-25 15:38:45,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:38:45,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-25 15:38:45,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:45,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-25 15:38:45,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2022-11-25 15:38:45,877 INFO L87 Difference]: Start difference. First operand 64 states and 72 transitions. Second operand has 19 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 19 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:46,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:38:46,054 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2022-11-25 15:38:46,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 15:38:46,055 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 19 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-25 15:38:46,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:38:46,057 INFO L225 Difference]: With dead ends: 64 [2022-11-25 15:38:46,057 INFO L226 Difference]: Without dead ends: 63 [2022-11-25 15:38:46,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=212, Invalid=438, Unknown=0, NotChecked=0, Total=650 [2022-11-25 15:38:46,058 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 25 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:38:46,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 13 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:38:46,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-25 15:38:46,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-11-25 15:38:46,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 61 states have (on average 1.098360655737705) internal successors, (67), 62 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:46,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2022-11-25 15:38:46,064 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 28 [2022-11-25 15:38:46,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:38:46,065 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2022-11-25 15:38:46,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 19 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:46,065 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2022-11-25 15:38:46,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-25 15:38:46,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:46,066 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-11-25 15:38:46,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 15:38:46,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:38:46,267 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:38:46,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:46,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1604010330, now seen corresponding path program 2 times [2022-11-25 15:38:46,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:46,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868940150] [2022-11-25 15:38:46,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:46,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:46,327 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:46,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:46,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868940150] [2022-11-25 15:38:46,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868940150] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:38:46,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347194311] [2022-11-25 15:38:46,328 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:38:46,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:38:46,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:38:46,329 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:38:46,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 15:38:46,371 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 15:38:46,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:38:46,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 15:38:46,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:38:46,549 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:46,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:38:46,717 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:46,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347194311] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:38:46,718 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:38:46,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 22 [2022-11-25 15:38:46,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261807481] [2022-11-25 15:38:46,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:38:46,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-25 15:38:46,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:46,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-25 15:38:46,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-11-25 15:38:46,721 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand has 23 states, 22 states have (on average 3.909090909090909) internal successors, (86), 23 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:47,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:38:47,166 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2022-11-25 15:38:47,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 15:38:47,167 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.909090909090909) internal successors, (86), 23 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-25 15:38:47,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:38:47,167 INFO L225 Difference]: With dead ends: 69 [2022-11-25 15:38:47,167 INFO L226 Difference]: Without dead ends: 68 [2022-11-25 15:38:47,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=530, Invalid=1030, Unknown=0, NotChecked=0, Total=1560 [2022-11-25 15:38:47,169 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 64 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:38:47,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 16 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:38:47,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-25 15:38:47,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2022-11-25 15:38:47,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 65 states have (on average 1.0307692307692307) internal successors, (67), 66 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:47,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2022-11-25 15:38:47,176 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 30 [2022-11-25 15:38:47,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:38:47,176 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 67 transitions. [2022-11-25 15:38:47,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.909090909090909) internal successors, (86), 23 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:47,176 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2022-11-25 15:38:47,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-25 15:38:47,178 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:47,178 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1] [2022-11-25 15:38:47,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 15:38:47,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 15:38:47,383 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:38:47,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:47,384 INFO L85 PathProgramCache]: Analyzing trace with hash 440276262, now seen corresponding path program 2 times [2022-11-25 15:38:47,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:47,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042664245] [2022-11-25 15:38:47,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:47,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:47,844 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:47,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:47,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042664245] [2022-11-25 15:38:47,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042664245] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:38:47,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626888790] [2022-11-25 15:38:47,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:38:47,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:38:47,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:38:47,855 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:38:47,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 15:38:47,904 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 15:38:47,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:38:47,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 15:38:47,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:38:48,058 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:48,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:38:48,747 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:48,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626888790] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:38:48,747 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:38:48,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33 [2022-11-25 15:38:48,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580711119] [2022-11-25 15:38:48,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:38:48,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-25 15:38:48,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:48,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-25 15:38:48,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=812, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 15:38:48,750 INFO L87 Difference]: Start difference. First operand 67 states and 67 transitions. Second operand has 34 states, 33 states have (on average 3.6363636363636362) internal successors, (120), 34 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:49,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:38:49,957 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2022-11-25 15:38:49,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-25 15:38:49,957 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.6363636363636362) internal successors, (120), 34 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-25 15:38:49,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:38:49,958 INFO L225 Difference]: With dead ends: 76 [2022-11-25 15:38:49,958 INFO L226 Difference]: Without dead ends: 75 [2022-11-25 15:38:49,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=995, Invalid=2787, Unknown=0, NotChecked=0, Total=3782 [2022-11-25 15:38:49,960 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 120 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 15:38:49,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 11 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 15:38:49,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-25 15:38:49,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 66. [2022-11-25 15:38:49,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.0153846153846153) internal successors, (66), 65 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:49,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2022-11-25 15:38:49,970 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 61 [2022-11-25 15:38:49,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:38:49,971 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2022-11-25 15:38:49,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.6363636363636362) internal successors, (120), 34 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:49,971 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2022-11-25 15:38:49,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-25 15:38:49,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:38:49,972 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1] [2022-11-25 15:38:49,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-25 15:38:50,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 15:38:50,178 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:38:50,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:50,178 INFO L85 PathProgramCache]: Analyzing trace with hash -178581686, now seen corresponding path program 3 times [2022-11-25 15:38:50,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:50,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854777856] [2022-11-25 15:38:50,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:50,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:50,543 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:50,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:50,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854777856] [2022-11-25 15:38:50,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854777856] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:38:50,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459868750] [2022-11-25 15:38:50,544 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 15:38:50,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:38:50,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:38:50,547 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:38:50,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 15:38:50,601 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-25 15:38:50,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:38:50,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 15:38:50,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:38:50,823 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 121 proven. 27 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-11-25 15:38:50,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:38:51,200 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 121 proven. 27 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-11-25 15:38:51,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459868750] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:38:51,201 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:38:51,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9, 9] total 35 [2022-11-25 15:38:51,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971795398] [2022-11-25 15:38:51,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:38:51,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-25 15:38:51,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:51,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-25 15:38:51,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=1014, Unknown=0, NotChecked=0, Total=1260 [2022-11-25 15:38:51,203 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand has 36 states, 35 states have (on average 3.5142857142857142) internal successors, (123), 36 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:52,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:38:52,897 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2022-11-25 15:38:52,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-25 15:38:52,898 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 3.5142857142857142) internal successors, (123), 36 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-11-25 15:38:52,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:38:52,898 INFO L225 Difference]: With dead ends: 76 [2022-11-25 15:38:52,898 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 15:38:52,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 921 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1061, Invalid=4341, Unknown=0, NotChecked=0, Total=5402 [2022-11-25 15:38:52,903 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 116 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:38:52,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 17 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 15:38:52,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 15:38:52,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 15:38:52,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:52,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 15:38:52,904 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2022-11-25 15:38:52,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:38:52,904 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 15:38:52,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 3.5142857142857142) internal successors, (123), 36 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:52,905 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 15:38:52,905 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 15:38:52,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-25 15:38:52,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-25 15:38:52,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-25 15:38:52,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-25 15:38:52,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-25 15:38:52,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-25 15:38:52,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 15:38:53,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-25 15:38:53,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 15:38:53,309 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-11-25 15:38:53,309 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 15:38:53,309 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-25 15:38:53,309 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-25 15:38:53,309 INFO L902 garLoopResultBuilder]: At program point L27(lines 13 28) the Hoare annotation is: true [2022-11-25 15:38:53,309 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-11-25 15:38:53,309 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2022-11-25 15:38:53,310 INFO L899 garLoopResultBuilder]: For program point L21(lines 21 26) no Hoare annotation was computed. [2022-11-25 15:38:53,310 INFO L899 garLoopResultBuilder]: For program point L21-1(lines 21 26) no Hoare annotation was computed. [2022-11-25 15:38:53,310 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-11-25 15:38:53,310 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 15:38:53,310 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-11-25 15:38:53,310 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-25 15:38:53,310 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 15:38:53,310 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-25 15:38:53,310 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 15:38:53,310 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2022-11-25 15:38:53,310 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2022-11-25 15:38:53,310 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2022-11-25 15:38:53,311 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-25 15:38:53,311 INFO L899 garLoopResultBuilder]: For program point L22-2(lines 22 25) no Hoare annotation was computed. [2022-11-25 15:38:53,311 INFO L895 garLoopResultBuilder]: At program point L22-4(lines 22 25) the Hoare annotation is: (let ((.cse1 (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse0 (<= 3 |ULTIMATE.start_main_~c~0#1|))) (or (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 65536) (<= 0 (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~x~0#1| 65535)) (<= .cse1 65536)) (and (<= 2 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 65535) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 65535)) (<= |ULTIMATE.start_main_~x~0#1| 65535)) (and (<= .cse1 65531) (< 0 (+ 2147483650 |ULTIMATE.start_main_~x~0#1|)) .cse0 (<= (+ |ULTIMATE.start_main_~x~0#1| (* |ULTIMATE.start_main_~c~0#1| 4)) 2147483656)))) [2022-11-25 15:38:53,314 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:38:53,319 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:38:53,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:38:53 BoogieIcfgContainer [2022-11-25 15:38:53,338 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:38:53,339 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:38:53,339 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:38:53,339 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:38:53,340 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:38:40" (3/4) ... [2022-11-25 15:38:53,343 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 15:38:53,353 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 15:38:53,353 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 15:38:53,353 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 15:38:53,397 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:38:53,397 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:38:53,398 INFO L158 Benchmark]: Toolchain (without parser) took 13479.68ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 171.8MB in the beginning and 205.9MB in the end (delta: -34.1MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2022-11-25 15:38:53,398 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 146.8MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:38:53,399 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.77ms. Allocated memory is still 205.5MB. Free memory was 171.8MB in the beginning and 162.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 15:38:53,399 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.50ms. Allocated memory is still 205.5MB. Free memory was 162.1MB in the beginning and 160.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:38:53,400 INFO L158 Benchmark]: Boogie Preprocessor took 20.75ms. Allocated memory is still 205.5MB. Free memory was 160.9MB in the beginning and 159.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:38:53,400 INFO L158 Benchmark]: RCFGBuilder took 285.35ms. Allocated memory is still 205.5MB. Free memory was 159.8MB in the beginning and 149.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 15:38:53,401 INFO L158 Benchmark]: TraceAbstraction took 12866.59ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 148.9MB in the beginning and 209.0MB in the end (delta: -60.1MB). Peak memory consumption was 119.1MB. Max. memory is 16.1GB. [2022-11-25 15:38:53,402 INFO L158 Benchmark]: Witness Printer took 58.58ms. Allocated memory is still 247.5MB. Free memory was 209.0MB in the beginning and 205.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:38:53,407 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 146.8MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.77ms. Allocated memory is still 205.5MB. Free memory was 171.8MB in the beginning and 162.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.50ms. Allocated memory is still 205.5MB. Free memory was 162.1MB in the beginning and 160.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.75ms. Allocated memory is still 205.5MB. Free memory was 160.9MB in the beginning and 159.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 285.35ms. Allocated memory is still 205.5MB. Free memory was 159.8MB in the beginning and 149.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 12866.59ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 148.9MB in the beginning and 209.0MB in the end (delta: -60.1MB). Peak memory consumption was 119.1MB. Max. memory is 16.1GB. * Witness Printer took 58.58ms. Allocated memory is still 247.5MB. Free memory was 209.0MB in the beginning and 205.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 12.8s, OverallIterations: 15, TraceHistogramMax: 9, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 570 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 570 mSDsluCounter, 206 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 112 mSDsCounter, 193 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2680 IncrementalHoareTripleChecker+Invalid, 2873 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 193 mSolverCounterUnsat, 94 mSDtfsCounter, 2680 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 734 GetRequests, 446 SyntacticMatches, 1 SemanticMatches, 287 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2337 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=13, InterpolantAutomatonStates: 196, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 45 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 15 NumberOfFragments, 56 HoareAnnotationTreeSize, 2 FomulaSimplifications, 254 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 591 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 609 NumberOfCodeBlocks, 581 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 837 ConstructedInterpolants, 0 QuantifiedInterpolants, 4115 SizeOfPredicates, 10 NumberOfNonLiveVariables, 412 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 32 InterpolantComputations, 7 PerfectInterpolantSequences, 412/1570 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((3 <= c && c <= 65536) && 0 <= c + x + 65535) && c + x <= 65536) || (((2 <= c && c <= 65535) && 0 <= x + 65535) && x <= 65535)) || (((c + x <= 65531 && 0 < 2147483650 + x) && 3 <= c) && x + c * 4 <= 2147483656) RESULT: Ultimate proved your program to be correct! [2022-11-25 15:38:53,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c516a27-7c82-49c7-8d11-84fee6fc3b74/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE