./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.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_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/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_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/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_f614cce7-a5d7-4ccf-9106-9839f0c21cac/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 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 --- 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 16:42:02,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:42:02,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:42:02,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:42:02,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:42:02,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:42:02,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:42:02,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:42:02,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:42:02,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:42:02,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:42:02,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:42:02,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:42:02,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:42:02,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:42:02,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:42:02,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:42:02,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:42:02,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:42:02,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:42:02,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:42:02,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:42:02,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:42:02,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:42:02,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:42:02,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:42:02,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:42:02,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:42:02,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:42:02,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:42:02,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:42:02,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:42:02,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:42:02,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:42:02,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:42:02,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:42:02,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:42:02,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:42:02,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:42:02,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:42:02,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:42:02,280 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 16:42:02,308 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:42:02,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:42:02,309 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:42:02,309 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:42:02,310 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:42:02,310 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:42:02,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:42:02,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:42:02,312 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:42:02,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:42:02,312 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:42:02,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:42:02,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:42:02,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:42:02,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:42:02,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:42:02,314 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 16:42:02,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:42:02,315 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:42:02,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:42:02,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:42:02,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:42:02,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:42:02,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:42:02,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:42:02,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:42:02,317 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:42:02,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:42:02,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:42:02,319 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:42:02,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:42:02,319 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:42:02,320 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:42:02,320 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_f614cce7-a5d7-4ccf-9106-9839f0c21cac/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 [2022-11-25 16:42:02,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:42:02,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:42:02,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:42:02,745 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:42:02,745 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:42:02,747 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2022-11-25 16:42:06,220 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:42:06,529 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:42:06,530 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2022-11-25 16:42:06,538 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/data/c1e779ece/7f8b5c2d1f354cff8075622229ccd149/FLAGb693664f5 [2022-11-25 16:42:06,555 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/data/c1e779ece/7f8b5c2d1f354cff8075622229ccd149 [2022-11-25 16:42:06,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:42:06,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:42:06,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:42:06,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:42:06,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:42:06,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:06,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52b712f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06, skipping insertion in model container [2022-11-25 16:42:06,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:06,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:42:06,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:42:06,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:42:06,869 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:42:06,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:42:06,945 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:42:06,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06 WrapperNode [2022-11-25 16:42:06,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:42:06,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:42:06,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:42:06,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:42:06,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:06,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:07,013 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2022-11-25 16:42:07,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:42:07,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:42:07,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:42:07,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:42:07,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:07,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:07,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:07,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:07,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:07,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:07,052 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:07,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:07,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:42:07,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:42:07,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:42:07,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:42:07,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:07,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:42:07,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:42:07,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:42:07,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:42:07,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:42:07,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:42:07,271 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:42:07,273 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:42:07,415 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:42:07,422 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:42:07,422 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 16:42:07,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:42:07 BoogieIcfgContainer [2022-11-25 16:42:07,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:42:07,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:42:07,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:42:07,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:42:07,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:42:06" (1/3) ... [2022-11-25 16:42:07,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1591cf89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:42:07, skipping insertion in model container [2022-11-25 16:42:07,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (2/3) ... [2022-11-25 16:42:07,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1591cf89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:42:07, skipping insertion in model container [2022-11-25 16:42:07,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:42:07" (3/3) ... [2022-11-25 16:42:07,438 INFO L112 eAbstractionObserver]: Analyzing ICFG LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2022-11-25 16:42:07,464 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:42:07,465 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-25 16:42:07,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:42:07,541 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;@7de3767a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:42:07,542 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-25 16:42:07,555 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 16 states have (on average 1.8125) internal successors, (29), 24 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 16:42:07,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 16:42:07,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:42:07,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 16:42:07,565 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:42:07,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:07,571 INFO L85 PathProgramCache]: Analyzing trace with hash 28693987, now seen corresponding path program 1 times [2022-11-25 16:42:07,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:07,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191439568] [2022-11-25 16:42:07,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:07,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:07,787 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 16:42:07,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:07,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191439568] [2022-11-25 16:42:07,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191439568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:42:07,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:42:07,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:42:07,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192774031] [2022-11-25 16:42:07,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:42:07,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:42:07,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:07,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:42:07,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:42:07,839 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.8125) internal successors, (29), 24 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 16:42:07,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:42:07,907 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2022-11-25 16:42:07,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:42:07,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-11-25 16:42:07,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:42:07,920 INFO L225 Difference]: With dead ends: 54 [2022-11-25 16:42:07,921 INFO L226 Difference]: Without dead ends: 24 [2022-11-25 16:42:07,941 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 16:42:07,945 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:42:07,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 39 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:42:08,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-25 16:42:08,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2022-11-25 16:42:08,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.6) internal successors, (24), 22 states have internal predecessors, (24), 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 16:42:08,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-11-25 16:42:08,030 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 5 [2022-11-25 16:42:08,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:42:08,031 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-11-25 16:42:08,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 16:42:08,031 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-11-25 16:42:08,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 16:42:08,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:42:08,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 16:42:08,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:42:08,033 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:42:08,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:08,035 INFO L85 PathProgramCache]: Analyzing trace with hash 889513645, now seen corresponding path program 1 times [2022-11-25 16:42:08,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:08,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286644351] [2022-11-25 16:42:08,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:08,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:08,109 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 16:42:08,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:08,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286644351] [2022-11-25 16:42:08,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286644351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:42:08,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:42:08,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:42:08,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128026076] [2022-11-25 16:42:08,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:42:08,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:42:08,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:08,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:42:08,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:42:08,116 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 16:42:08,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:42:08,152 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-11-25 16:42:08,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:42:08,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 16:42:08,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:42:08,154 INFO L225 Difference]: With dead ends: 23 [2022-11-25 16:42:08,155 INFO L226 Difference]: Without dead ends: 22 [2022-11-25 16:42:08,155 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 16:42:08,157 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:42:08,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 10 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:42:08,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-25 16:42:08,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-25 16:42:08,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 21 states have internal predecessors, (23), 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 16:42:08,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-11-25 16:42:08,165 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 6 [2022-11-25 16:42:08,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:42:08,166 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-11-25 16:42:08,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 16:42:08,167 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-11-25 16:42:08,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 16:42:08,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:42:08,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:42:08,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:42:08,169 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:42:08,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:08,170 INFO L85 PathProgramCache]: Analyzing trace with hash 124122716, now seen corresponding path program 1 times [2022-11-25 16:42:08,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:08,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159107976] [2022-11-25 16:42:08,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:08,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:08,350 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 16:42:08,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:08,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159107976] [2022-11-25 16:42:08,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159107976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:42:08,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:42:08,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:42:08,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722644058] [2022-11-25 16:42:08,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:42:08,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:42:08,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:08,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:42:08,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:42:08,355 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 16:42:08,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:42:08,500 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2022-11-25 16:42:08,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 16:42:08,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 8 [2022-11-25 16:42:08,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:42:08,502 INFO L225 Difference]: With dead ends: 42 [2022-11-25 16:42:08,503 INFO L226 Difference]: Without dead ends: 41 [2022-11-25 16:42:08,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:42:08,505 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 22 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:42:08,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 21 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:42:08,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-25 16:42:08,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2022-11-25 16:42:08,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 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 16:42:08,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2022-11-25 16:42:08,520 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 8 [2022-11-25 16:42:08,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:42:08,520 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-11-25 16:42:08,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 16:42:08,521 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-11-25 16:42:08,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 16:42:08,521 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:42:08,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:42:08,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 16:42:08,522 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:42:08,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:08,523 INFO L85 PathProgramCache]: Analyzing trace with hash 124122767, now seen corresponding path program 1 times [2022-11-25 16:42:08,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:08,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085557083] [2022-11-25 16:42:08,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:08,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:08,644 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 16:42:08,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:08,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085557083] [2022-11-25 16:42:08,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085557083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:42:08,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:42:08,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:42:08,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391946928] [2022-11-25 16:42:08,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:42:08,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:42:08,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:08,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:42:08,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:42:08,649 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 16:42:08,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:42:08,762 INFO L93 Difference]: Finished difference Result 59 states and 74 transitions. [2022-11-25 16:42:08,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:42:08,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-11-25 16:42:08,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:42:08,766 INFO L225 Difference]: With dead ends: 59 [2022-11-25 16:42:08,766 INFO L226 Difference]: Without dead ends: 57 [2022-11-25 16:42:08,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:42:08,769 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 24 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:42:08,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 26 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:42:08,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-25 16:42:08,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2022-11-25 16:42:08,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 39 states have (on average 1.564102564102564) internal successors, (61), 45 states have internal predecessors, (61), 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 16:42:08,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 61 transitions. [2022-11-25 16:42:08,785 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 61 transitions. Word has length 8 [2022-11-25 16:42:08,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:42:08,785 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 61 transitions. [2022-11-25 16:42:08,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 16:42:08,786 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2022-11-25 16:42:08,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 16:42:08,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:42:08,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:42:08,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 16:42:08,788 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:42:08,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:08,789 INFO L85 PathProgramCache]: Analyzing trace with hash -447163028, now seen corresponding path program 1 times [2022-11-25 16:42:08,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:08,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006751498] [2022-11-25 16:42:08,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:08,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:08,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:08,887 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 16:42:08,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:08,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006751498] [2022-11-25 16:42:08,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006751498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:42:08,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:42:08,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:42:08,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026757978] [2022-11-25 16:42:08,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:42:08,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:42:08,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:08,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:42:08,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:42:08,898 INFO L87 Difference]: Start difference. First operand 46 states and 61 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 16:42:09,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:42:09,022 INFO L93 Difference]: Finished difference Result 61 states and 78 transitions. [2022-11-25 16:42:09,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:42:09,023 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 16:42:09,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:42:09,024 INFO L225 Difference]: With dead ends: 61 [2022-11-25 16:42:09,028 INFO L226 Difference]: Without dead ends: 60 [2022-11-25 16:42:09,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:42:09,030 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 15 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:42:09,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 20 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:42:09,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-25 16:42:09,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2022-11-25 16:42:09,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 47 states have (on average 1.553191489361702) internal successors, (73), 53 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 16:42:09,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 73 transitions. [2022-11-25 16:42:09,057 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 73 transitions. Word has length 9 [2022-11-25 16:42:09,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:42:09,058 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 73 transitions. [2022-11-25 16:42:09,058 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 16:42:09,059 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 73 transitions. [2022-11-25 16:42:09,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 16:42:09,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:42:09,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:42:09,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 16:42:09,062 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:42:09,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:09,066 INFO L85 PathProgramCache]: Analyzing trace with hash -447161458, now seen corresponding path program 1 times [2022-11-25 16:42:09,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:09,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357576283] [2022-11-25 16:42:09,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:09,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:09,155 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 16:42:09,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:09,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357576283] [2022-11-25 16:42:09,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357576283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:42:09,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:42:09,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:42:09,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552233514] [2022-11-25 16:42:09,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:42:09,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:42:09,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:09,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:42:09,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:42:09,159 INFO L87 Difference]: Start difference. First operand 54 states and 73 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 16:42:09,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:42:09,268 INFO L93 Difference]: Finished difference Result 98 states and 135 transitions. [2022-11-25 16:42:09,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:42:09,269 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 16:42:09,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:42:09,271 INFO L225 Difference]: With dead ends: 98 [2022-11-25 16:42:09,271 INFO L226 Difference]: Without dead ends: 97 [2022-11-25 16:42:09,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:42:09,273 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 29 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:42:09,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 27 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:42:09,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-25 16:42:09,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 86. [2022-11-25 16:42:09,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 79 states have (on average 1.5316455696202531) internal successors, (121), 85 states have internal predecessors, (121), 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 16:42:09,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 121 transitions. [2022-11-25 16:42:09,310 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 121 transitions. Word has length 9 [2022-11-25 16:42:09,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:42:09,311 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 121 transitions. [2022-11-25 16:42:09,311 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 16:42:09,311 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 121 transitions. [2022-11-25 16:42:09,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 16:42:09,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:42:09,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:42:09,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 16:42:09,312 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:42:09,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:09,313 INFO L85 PathProgramCache]: Analyzing trace with hash -977103247, now seen corresponding path program 1 times [2022-11-25 16:42:09,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:09,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650722254] [2022-11-25 16:42:09,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:09,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:09,395 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 16:42:09,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:09,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650722254] [2022-11-25 16:42:09,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650722254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:42:09,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:42:09,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:42:09,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95829657] [2022-11-25 16:42:09,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:42:09,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:42:09,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:09,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:42:09,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:42:09,414 INFO L87 Difference]: Start difference. First operand 86 states and 121 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 16:42:09,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:42:09,484 INFO L93 Difference]: Finished difference Result 86 states and 121 transitions. [2022-11-25 16:42:09,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:42:09,485 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 16:42:09,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:42:09,490 INFO L225 Difference]: With dead ends: 86 [2022-11-25 16:42:09,490 INFO L226 Difference]: Without dead ends: 85 [2022-11-25 16:42:09,491 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 16:42:09,492 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 17 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:42:09,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 17 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:42:09,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-25 16:42:09,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2022-11-25 16:42:09,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 79 states have (on average 1.4556962025316456) internal successors, (115), 84 states have internal predecessors, (115), 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 16:42:09,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 115 transitions. [2022-11-25 16:42:09,522 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 115 transitions. Word has length 10 [2022-11-25 16:42:09,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:42:09,523 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 115 transitions. [2022-11-25 16:42:09,523 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 16:42:09,524 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 115 transitions. [2022-11-25 16:42:09,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 16:42:09,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:42:09,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:42:09,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 16:42:09,525 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:42:09,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:09,526 INFO L85 PathProgramCache]: Analyzing trace with hash -225429520, now seen corresponding path program 1 times [2022-11-25 16:42:09,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:09,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304960163] [2022-11-25 16:42:09,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:09,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:09,592 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 16:42:09,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:09,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304960163] [2022-11-25 16:42:09,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304960163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:42:09,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:42:09,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:42:09,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076623591] [2022-11-25 16:42:09,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:42:09,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:42:09,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:09,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:42:09,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:42:09,596 INFO L87 Difference]: Start difference. First operand 85 states and 115 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 16:42:09,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:42:09,620 INFO L93 Difference]: Finished difference Result 85 states and 115 transitions. [2022-11-25 16:42:09,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:42:09,621 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 16:42:09,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:42:09,623 INFO L225 Difference]: With dead ends: 85 [2022-11-25 16:42:09,624 INFO L226 Difference]: Without dead ends: 84 [2022-11-25 16:42:09,624 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 16:42:09,629 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:42:09,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 15 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:42:09,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-25 16:42:09,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-11-25 16:42:09,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 79 states have (on average 1.379746835443038) internal successors, (109), 83 states have internal predecessors, (109), 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 16:42:09,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2022-11-25 16:42:09,660 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 11 [2022-11-25 16:42:09,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:42:09,661 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2022-11-25 16:42:09,663 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 16:42:09,667 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2022-11-25 16:42:09,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 16:42:09,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:42:09,670 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 16:42:09,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 16:42:09,671 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:42:09,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:09,675 INFO L85 PathProgramCache]: Analyzing trace with hash -458138511, now seen corresponding path program 1 times [2022-11-25 16:42:09,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:09,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921248440] [2022-11-25 16:42:09,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:09,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:09,761 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 16:42:09,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:09,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921248440] [2022-11-25 16:42:09,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921248440] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:42:09,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769918252] [2022-11-25 16:42:09,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:09,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:42:09,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:42:09,771 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:42:09,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 16:42:09,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:09,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 16:42:09,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:42:10,030 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 16:42:10,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:42:10,164 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 16:42:10,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769918252] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:42:10,175 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:42:10,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-11-25 16:42:10,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815736674] [2022-11-25 16:42:10,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:42:10,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 16:42:10,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:10,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 16:42:10,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:42:10,179 INFO L87 Difference]: Start difference. First operand 84 states and 109 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 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 16:42:10,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:42:10,910 INFO L93 Difference]: Finished difference Result 214 states and 298 transitions. [2022-11-25 16:42:10,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-25 16:42:10,910 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 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 16:42:10,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:42:10,912 INFO L225 Difference]: With dead ends: 214 [2022-11-25 16:42:10,912 INFO L226 Difference]: Without dead ends: 211 [2022-11-25 16:42:10,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=354, Invalid=768, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 16:42:10,914 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 183 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 16:42:10,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 30 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 16:42:10,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-11-25 16:42:10,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 110. [2022-11-25 16:42:10,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 107 states have (on average 1.280373831775701) internal successors, (137), 109 states have internal predecessors, (137), 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 16:42:10,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 137 transitions. [2022-11-25 16:42:10,961 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 137 transitions. Word has length 14 [2022-11-25 16:42:10,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:42:10,962 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 137 transitions. [2022-11-25 16:42:10,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 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 16:42:10,963 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 137 transitions. [2022-11-25 16:42:10,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 16:42:10,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:42:10,964 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-25 16:42:10,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 16:42:11,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:42:11,165 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:42:11,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:11,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1317391881, now seen corresponding path program 1 times [2022-11-25 16:42:11,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:11,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621361686] [2022-11-25 16:42:11,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:11,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:11,252 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:11,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:11,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621361686] [2022-11-25 16:42:11,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621361686] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:42:11,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734414267] [2022-11-25 16:42:11,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:11,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:42:11,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:42:11,257 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:42:11,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 16:42:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:11,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 16:42:11,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:42:11,460 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:11,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:42:11,552 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:11,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734414267] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:42:11,552 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:42:11,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-11-25 16:42:11,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171659673] [2022-11-25 16:42:11,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:42:11,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 16:42:11,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:11,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 16:42:11,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:42:11,555 INFO L87 Difference]: Start difference. First operand 110 states and 137 transitions. Second operand has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 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 16:42:11,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:42:11,971 INFO L93 Difference]: Finished difference Result 229 states and 287 transitions. [2022-11-25 16:42:11,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:42:11,971 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 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 15 [2022-11-25 16:42:11,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:42:11,973 INFO L225 Difference]: With dead ends: 229 [2022-11-25 16:42:11,973 INFO L226 Difference]: Without dead ends: 228 [2022-11-25 16:42:11,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=151, Invalid=269, Unknown=0, NotChecked=0, Total=420 [2022-11-25 16:42:11,975 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 130 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:42:11,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 32 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:42:11,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-25 16:42:12,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 170. [2022-11-25 16:42:12,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 167 states have (on average 1.2455089820359282) internal successors, (208), 169 states have internal predecessors, (208), 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 16:42:12,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 208 transitions. [2022-11-25 16:42:12,029 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 208 transitions. Word has length 15 [2022-11-25 16:42:12,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:42:12,029 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 208 transitions. [2022-11-25 16:42:12,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 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 16:42:12,030 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 208 transitions. [2022-11-25 16:42:12,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 16:42:12,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:42:12,031 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:42:12,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 16:42:12,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:42:12,237 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:42:12,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:12,237 INFO L85 PathProgramCache]: Analyzing trace with hash -730743378, now seen corresponding path program 1 times [2022-11-25 16:42:12,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:12,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376165730] [2022-11-25 16:42:12,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:12,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:12,298 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:12,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:12,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376165730] [2022-11-25 16:42:12,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376165730] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:42:12,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057983401] [2022-11-25 16:42:12,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:12,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:42:12,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:42:12,302 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:42:12,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 16:42:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:12,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 16:42:12,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:42:12,399 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:12,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:42:12,459 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:12,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057983401] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:42:12,460 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:42:12,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-25 16:42:12,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363421623] [2022-11-25 16:42:12,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:42:12,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 16:42:12,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:12,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 16:42:12,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-25 16:42:12,463 INFO L87 Difference]: Start difference. First operand 170 states and 208 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 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 16:42:12,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:42:12,609 INFO L93 Difference]: Finished difference Result 378 states and 473 transitions. [2022-11-25 16:42:12,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 16:42:12,610 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 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 19 [2022-11-25 16:42:12,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:42:12,612 INFO L225 Difference]: With dead ends: 378 [2022-11-25 16:42:12,612 INFO L226 Difference]: Without dead ends: 377 [2022-11-25 16:42:12,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-25 16:42:12,615 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 47 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:42:12,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 44 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:42:12,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-11-25 16:42:12,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 277. [2022-11-25 16:42:12,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 274 states have (on average 1.2372262773722629) internal successors, (339), 276 states have internal predecessors, (339), 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 16:42:12,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 339 transitions. [2022-11-25 16:42:12,654 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 339 transitions. Word has length 19 [2022-11-25 16:42:12,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:42:12,654 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 339 transitions. [2022-11-25 16:42:12,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 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 16:42:12,655 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 339 transitions. [2022-11-25 16:42:12,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 16:42:12,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:42:12,663 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-25 16:42:12,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 16:42:12,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 16:42:12,869 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:42:12,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:12,870 INFO L85 PathProgramCache]: Analyzing trace with hash -2017559647, now seen corresponding path program 1 times [2022-11-25 16:42:12,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:12,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758423926] [2022-11-25 16:42:12,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:12,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:13,041 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 16:42:13,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:13,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758423926] [2022-11-25 16:42:13,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758423926] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:42:13,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783833019] [2022-11-25 16:42:13,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:13,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:42:13,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:42:13,044 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:42:13,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 16:42:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:13,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 16:42:13,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:42:13,282 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 16:42:13,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:42:13,455 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 16:42:13,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783833019] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:42:13,455 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:42:13,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 18 [2022-11-25 16:42:13,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661948872] [2022-11-25 16:42:13,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:42:13,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-25 16:42:13,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:13,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-25 16:42:13,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-11-25 16:42:13,464 INFO L87 Difference]: Start difference. First operand 277 states and 339 transitions. Second operand has 19 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 19 states have internal predecessors, (71), 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 16:42:14,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:42:14,322 INFO L93 Difference]: Finished difference Result 511 states and 639 transitions. [2022-11-25 16:42:14,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 16:42:14,323 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 19 states have internal predecessors, (71), 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 25 [2022-11-25 16:42:14,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:42:14,326 INFO L225 Difference]: With dead ends: 511 [2022-11-25 16:42:14,327 INFO L226 Difference]: Without dead ends: 509 [2022-11-25 16:42:14,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=513, Invalid=1127, Unknown=0, NotChecked=0, Total=1640 [2022-11-25 16:42:14,329 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 73 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 16:42:14,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 7 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 16:42:14,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-11-25 16:42:14,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 311. [2022-11-25 16:42:14,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 308 states have (on average 1.2175324675324675) internal successors, (375), 310 states have internal predecessors, (375), 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 16:42:14,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 375 transitions. [2022-11-25 16:42:14,379 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 375 transitions. Word has length 25 [2022-11-25 16:42:14,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:42:14,382 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 375 transitions. [2022-11-25 16:42:14,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 19 states have internal predecessors, (71), 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 16:42:14,383 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 375 transitions. [2022-11-25 16:42:14,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-25 16:42:14,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:42:14,387 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-25 16:42:14,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 16:42:14,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 16:42:14,594 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:42:14,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:14,594 INFO L85 PathProgramCache]: Analyzing trace with hash 678241780, now seen corresponding path program 2 times [2022-11-25 16:42:14,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:14,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129323620] [2022-11-25 16:42:14,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:14,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:14,762 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 16:42:14,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:14,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129323620] [2022-11-25 16:42:14,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129323620] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:42:14,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523278561] [2022-11-25 16:42:14,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 16:42:14,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:42:14,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:42:14,765 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:42:14,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 16:42:14,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 16:42:14,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:42:14,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 16:42:14,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:42:15,063 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 16:42:15,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:42:15,227 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 16:42:15,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523278561] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:42:15,228 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:42:15,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2022-11-25 16:42:15,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552927986] [2022-11-25 16:42:15,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:42:15,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-25 16:42:15,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:15,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-25 16:42:15,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2022-11-25 16:42:15,231 INFO L87 Difference]: Start difference. First operand 311 states and 375 transitions. Second operand has 22 states, 21 states have (on average 4.095238095238095) internal successors, (86), 22 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 16:42:16,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:42:16,871 INFO L93 Difference]: Finished difference Result 1537 states and 1825 transitions. [2022-11-25 16:42:16,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-11-25 16:42:16,872 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.095238095238095) internal successors, (86), 22 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 16:42:16,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:42:16,881 INFO L225 Difference]: With dead ends: 1537 [2022-11-25 16:42:16,881 INFO L226 Difference]: Without dead ends: 1536 [2022-11-25 16:42:16,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2410 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1687, Invalid=4475, Unknown=0, NotChecked=0, Total=6162 [2022-11-25 16:42:16,887 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 317 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 16:42:16,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 34 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 16:42:16,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2022-11-25 16:42:17,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 715. [2022-11-25 16:42:17,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 712 states have (on average 1.2148876404494382) internal successors, (865), 714 states have internal predecessors, (865), 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 16:42:17,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 865 transitions. [2022-11-25 16:42:17,008 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 865 transitions. Word has length 30 [2022-11-25 16:42:17,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:42:17,008 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 865 transitions. [2022-11-25 16:42:17,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.095238095238095) internal successors, (86), 22 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 16:42:17,009 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 865 transitions. [2022-11-25 16:42:17,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 16:42:17,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:42:17,011 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2022-11-25 16:42:17,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 16:42:17,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 16:42:17,218 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:42:17,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:17,219 INFO L85 PathProgramCache]: Analyzing trace with hash 499781144, now seen corresponding path program 2 times [2022-11-25 16:42:17,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:17,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21967128] [2022-11-25 16:42:17,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:17,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:17,424 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:17,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:17,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21967128] [2022-11-25 16:42:17,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21967128] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:42:17,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262576517] [2022-11-25 16:42:17,425 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 16:42:17,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:42:17,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:42:17,427 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:42:17,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 16:42:17,480 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 16:42:17,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:42:17,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 16:42:17,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:42:17,860 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:17,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:42:18,144 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:18,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262576517] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:42:18,145 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:42:18,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2022-11-25 16:42:18,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439383090] [2022-11-25 16:42:18,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:42:18,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-25 16:42:18,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:18,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-25 16:42:18,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=745, Unknown=0, NotChecked=0, Total=992 [2022-11-25 16:42:18,148 INFO L87 Difference]: Start difference. First operand 715 states and 865 transitions. Second operand has 32 states, 31 states have (on average 3.064516129032258) internal successors, (95), 32 states have internal predecessors, (95), 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 16:42:20,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:42:20,320 INFO L93 Difference]: Finished difference Result 1329 states and 1575 transitions. [2022-11-25 16:42:20,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-25 16:42:20,321 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.064516129032258) internal successors, (95), 32 states have internal predecessors, (95), 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 33 [2022-11-25 16:42:20,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:42:20,326 INFO L225 Difference]: With dead ends: 1329 [2022-11-25 16:42:20,327 INFO L226 Difference]: Without dead ends: 1328 [2022-11-25 16:42:20,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1445 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1319, Invalid=2841, Unknown=0, NotChecked=0, Total=4160 [2022-11-25 16:42:20,330 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 522 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 16:42:20,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 106 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 16:42:20,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2022-11-25 16:42:20,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 886. [2022-11-25 16:42:20,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 883 states have (on average 1.2095130237825595) internal successors, (1068), 885 states have internal predecessors, (1068), 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 16:42:20,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1068 transitions. [2022-11-25 16:42:20,449 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1068 transitions. Word has length 33 [2022-11-25 16:42:20,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:42:20,451 INFO L495 AbstractCegarLoop]: Abstraction has 886 states and 1068 transitions. [2022-11-25 16:42:20,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.064516129032258) internal successors, (95), 32 states have internal predecessors, (95), 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 16:42:20,452 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1068 transitions. [2022-11-25 16:42:20,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-25 16:42:20,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:42:20,455 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 1, 1, 1, 1] [2022-11-25 16:42:20,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 16:42:20,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 16:42:20,663 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:42:20,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:20,664 INFO L85 PathProgramCache]: Analyzing trace with hash -746656358, now seen corresponding path program 1 times [2022-11-25 16:42:20,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:20,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956948786] [2022-11-25 16:42:20,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:20,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:20,745 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-25 16:42:20,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:20,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956948786] [2022-11-25 16:42:20,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956948786] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:42:20,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769020564] [2022-11-25 16:42:20,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:20,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:42:20,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:42:20,748 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:42:20,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 16:42:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:20,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 16:42:20,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:42:20,959 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:20,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:42:21,120 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:21,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769020564] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:42:21,121 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:42:21,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 15 [2022-11-25 16:42:21,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848779142] [2022-11-25 16:42:21,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:42:21,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 16:42:21,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:21,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 16:42:21,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2022-11-25 16:42:21,125 INFO L87 Difference]: Start difference. First operand 886 states and 1068 transitions. Second operand has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 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 16:42:22,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:42:22,055 INFO L93 Difference]: Finished difference Result 3180 states and 3901 transitions. [2022-11-25 16:42:22,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-25 16:42:22,056 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 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 35 [2022-11-25 16:42:22,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:42:22,069 INFO L225 Difference]: With dead ends: 3180 [2022-11-25 16:42:22,070 INFO L226 Difference]: Without dead ends: 2976 [2022-11-25 16:42:22,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=545, Invalid=1015, Unknown=0, NotChecked=0, Total=1560 [2022-11-25 16:42:22,077 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 245 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:42:22,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 27 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:42:22,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2022-11-25 16:42:22,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 445. [2022-11-25 16:42:22,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 443 states have (on average 1.18510158013544) internal successors, (525), 444 states have internal predecessors, (525), 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 16:42:22,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 525 transitions. [2022-11-25 16:42:22,200 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 525 transitions. Word has length 35 [2022-11-25 16:42:22,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:42:22,201 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 525 transitions. [2022-11-25 16:42:22,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 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 16:42:22,201 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 525 transitions. [2022-11-25 16:42:22,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-25 16:42:22,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:42:22,204 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:42:22,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 16:42:22,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-25 16:42:22,412 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:42:22,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:22,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1457588718, now seen corresponding path program 2 times [2022-11-25 16:42:22,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:22,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352821204] [2022-11-25 16:42:22,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:22,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:22,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:22,632 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:22,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:22,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352821204] [2022-11-25 16:42:22,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352821204] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:42:22,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948978688] [2022-11-25 16:42:22,633 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 16:42:22,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:42:22,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:42:22,635 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:42:22,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 16:42:22,708 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 16:42:22,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:42:22,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 16:42:22,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:42:22,790 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:22,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:42:22,963 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:22,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948978688] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:42:22,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:42:22,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-11-25 16:42:22,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035782330] [2022-11-25 16:42:22,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:42:22,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 16:42:22,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:22,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 16:42:22,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-25 16:42:22,967 INFO L87 Difference]: Start difference. First operand 445 states and 525 transitions. Second operand has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 16 states have internal predecessors, (76), 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 16:42:23,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:42:23,523 INFO L93 Difference]: Finished difference Result 1706 states and 2070 transitions. [2022-11-25 16:42:23,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 16:42:23,523 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 16 states have internal predecessors, (76), 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 39 [2022-11-25 16:42:23,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:42:23,530 INFO L225 Difference]: With dead ends: 1706 [2022-11-25 16:42:23,531 INFO L226 Difference]: Without dead ends: 1705 [2022-11-25 16:42:23,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-25 16:42:23,533 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 149 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:42:23,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 83 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:42:23,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2022-11-25 16:42:23,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1203. [2022-11-25 16:42:23,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 1201 states have (on average 1.1740216486261448) internal successors, (1410), 1202 states have internal predecessors, (1410), 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 16:42:23,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1410 transitions. [2022-11-25 16:42:23,812 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1410 transitions. Word has length 39 [2022-11-25 16:42:23,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:42:23,812 INFO L495 AbstractCegarLoop]: Abstraction has 1203 states and 1410 transitions. [2022-11-25 16:42:23,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 16 states have internal predecessors, (76), 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 16:42:23,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1410 transitions. [2022-11-25 16:42:23,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 16:42:23,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:42:23,814 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2022-11-25 16:42:23,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 16:42:24,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:42:24,021 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:42:24,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:24,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1726793311, now seen corresponding path program 3 times [2022-11-25 16:42:24,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:24,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585774120] [2022-11-25 16:42:24,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:24,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:24,305 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:24,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:24,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585774120] [2022-11-25 16:42:24,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585774120] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:42:24,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982550714] [2022-11-25 16:42:24,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 16:42:24,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:42:24,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:42:24,308 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:42:24,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 16:42:24,371 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-25 16:42:24,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:42:24,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 16:42:24,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:42:24,790 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:24,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:42:25,118 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:25,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982550714] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:42:25,118 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:42:25,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 36 [2022-11-25 16:42:25,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521810990] [2022-11-25 16:42:25,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:42:25,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-25 16:42:25,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:25,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-25 16:42:25,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2022-11-25 16:42:25,122 INFO L87 Difference]: Start difference. First operand 1203 states and 1410 transitions. Second operand has 37 states, 36 states have (on average 3.7222222222222223) internal successors, (134), 37 states have internal predecessors, (134), 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 16:42:34,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:42:34,477 INFO L93 Difference]: Finished difference Result 10558 states and 12329 transitions. [2022-11-25 16:42:34,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2022-11-25 16:42:34,477 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 3.7222222222222223) internal successors, (134), 37 states have internal predecessors, (134), 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 46 [2022-11-25 16:42:34,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:42:34,506 INFO L225 Difference]: With dead ends: 10558 [2022-11-25 16:42:34,506 INFO L226 Difference]: Without dead ends: 10557 [2022-11-25 16:42:34,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26171 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=12057, Invalid=43403, Unknown=0, NotChecked=0, Total=55460 [2022-11-25 16:42:34,527 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 868 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:42:34,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 43 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 16:42:34,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10557 states. [2022-11-25 16:42:35,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10557 to 3947. [2022-11-25 16:42:35,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3945 states have (on average 1.1842839036755386) internal successors, (4672), 3946 states have internal predecessors, (4672), 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 16:42:35,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 4672 transitions. [2022-11-25 16:42:35,612 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 4672 transitions. Word has length 46 [2022-11-25 16:42:35,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:42:35,613 INFO L495 AbstractCegarLoop]: Abstraction has 3947 states and 4672 transitions. [2022-11-25 16:42:35,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 3.7222222222222223) internal successors, (134), 37 states have internal predecessors, (134), 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 16:42:35,613 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 4672 transitions. [2022-11-25 16:42:35,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-25 16:42:35,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:42:35,615 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2022-11-25 16:42:35,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 16:42:35,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-25 16:42:35,821 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:42:35,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:42:35,822 INFO L85 PathProgramCache]: Analyzing trace with hash 2065951787, now seen corresponding path program 4 times [2022-11-25 16:42:35,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:42:35,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131282590] [2022-11-25 16:42:35,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:42:35,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:42:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:42:36,263 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:36,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:42:36,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131282590] [2022-11-25 16:42:36,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131282590] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:42:36,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018316669] [2022-11-25 16:42:36,264 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 16:42:36,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:42:36,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:42:36,266 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:42:36,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 16:42:36,328 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 16:42:36,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:42:36,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-25 16:42:36,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:42:37,039 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:37,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:42:37,636 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:42:37,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018316669] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:42:37,636 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:42:37,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 17] total 52 [2022-11-25 16:42:37,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356553392] [2022-11-25 16:42:37,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:42:37,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-25 16:42:37,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:42:37,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-25 16:42:37,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=549, Invalid=2207, Unknown=0, NotChecked=0, Total=2756 [2022-11-25 16:42:37,640 INFO L87 Difference]: Start difference. First operand 3947 states and 4672 transitions. Second operand has 53 states, 52 states have (on average 3.3846153846153846) internal successors, (176), 53 states have internal predecessors, (176), 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 16:43:08,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:43:08,117 INFO L93 Difference]: Finished difference Result 6896 states and 8060 transitions. [2022-11-25 16:43:08,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 410 states. [2022-11-25 16:43:08,118 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 3.3846153846153846) internal successors, (176), 53 states have internal predecessors, (176), 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 60 [2022-11-25 16:43:08,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:43:08,132 INFO L225 Difference]: With dead ends: 6896 [2022-11-25 16:43:08,132 INFO L226 Difference]: Without dead ends: 6895 [2022-11-25 16:43:08,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 443 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101119 ImplicationChecksByTransitivity, 24.8s TimeCoverageRelationStatistics Valid=44916, Invalid=152664, Unknown=0, NotChecked=0, Total=197580 [2022-11-25 16:43:08,152 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2150 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 2747 mSolverCounterSat, 885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2150 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 3632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 885 IncrementalHoareTripleChecker+Valid, 2747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-25 16:43:08,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2150 Valid, 224 Invalid, 3632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [885 Valid, 2747 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-25 16:43:08,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6895 states. [2022-11-25 16:43:09,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6895 to 4643. [2022-11-25 16:43:09,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4643 states, 4641 states have (on average 1.1831501831501832) internal successors, (5491), 4642 states have internal predecessors, (5491), 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 16:43:09,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4643 states to 4643 states and 5491 transitions. [2022-11-25 16:43:09,823 INFO L78 Accepts]: Start accepts. Automaton has 4643 states and 5491 transitions. Word has length 60 [2022-11-25 16:43:09,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:43:09,824 INFO L495 AbstractCegarLoop]: Abstraction has 4643 states and 5491 transitions. [2022-11-25 16:43:09,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 3.3846153846153846) internal successors, (176), 53 states have internal predecessors, (176), 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 16:43:09,824 INFO L276 IsEmpty]: Start isEmpty. Operand 4643 states and 5491 transitions. [2022-11-25 16:43:09,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-25 16:43:09,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:43:09,827 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1] [2022-11-25 16:43:09,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 16:43:10,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-25 16:43:10,033 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:43:10,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:10,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1453726494, now seen corresponding path program 5 times [2022-11-25 16:43:10,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:10,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671633864] [2022-11-25 16:43:10,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:10,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:10,440 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:10,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:43:10,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671633864] [2022-11-25 16:43:10,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671633864] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:43:10,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102661239] [2022-11-25 16:43:10,441 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-25 16:43:10,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:43:10,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:43:10,443 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:43:10,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 16:43:10,507 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2022-11-25 16:43:10,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:43:10,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 16:43:10,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:43:10,799 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 67 proven. 21 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-25 16:43:10,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:43:11,165 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 67 proven. 21 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-25 16:43:11,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102661239] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:43:11,166 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:43:11,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11, 11] total 38 [2022-11-25 16:43:11,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073153162] [2022-11-25 16:43:11,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:43:11,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-25 16:43:11,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:43:11,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-25 16:43:11,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1222, Unknown=0, NotChecked=0, Total=1406 [2022-11-25 16:43:11,168 INFO L87 Difference]: Start difference. First operand 4643 states and 5491 transitions. Second operand has 38 states, 38 states have (on average 3.0789473684210527) internal successors, (117), 38 states have internal predecessors, (117), 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 16:43:22,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:43:22,872 INFO L93 Difference]: Finished difference Result 12361 states and 14600 transitions. [2022-11-25 16:43:22,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2022-11-25 16:43:22,873 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.0789473684210527) internal successors, (117), 38 states have internal predecessors, (117), 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 62 [2022-11-25 16:43:22,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:43:22,875 INFO L225 Difference]: With dead ends: 12361 [2022-11-25 16:43:22,875 INFO L226 Difference]: Without dead ends: 521 [2022-11-25 16:43:22,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 145 SyntacticMatches, 1 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22419 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=8533, Invalid=46927, Unknown=0, NotChecked=0, Total=55460 [2022-11-25 16:43:22,891 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 675 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:43:22,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 22 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 16:43:22,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-11-25 16:43:23,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 193. [2022-11-25 16:43:23,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 191 states have (on average 1.0994764397905759) internal successors, (210), 192 states have internal predecessors, (210), 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 16:43:23,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 210 transitions. [2022-11-25 16:43:23,065 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 210 transitions. Word has length 62 [2022-11-25 16:43:23,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:43:23,066 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 210 transitions. [2022-11-25 16:43:23,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.0789473684210527) internal successors, (117), 38 states have internal predecessors, (117), 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 16:43:23,066 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 210 transitions. [2022-11-25 16:43:23,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-25 16:43:23,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:43:23,067 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1] [2022-11-25 16:43:23,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 16:43:23,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:43:23,275 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:43:23,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:23,275 INFO L85 PathProgramCache]: Analyzing trace with hash 727673482, now seen corresponding path program 6 times [2022-11-25 16:43:23,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:23,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035577181] [2022-11-25 16:43:23,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:23,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:23,826 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:23,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:43:23,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035577181] [2022-11-25 16:43:23,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035577181] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:43:23,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243570914] [2022-11-25 16:43:23,827 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-25 16:43:23,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:43:23,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:43:23,828 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:43:23,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 16:43:23,897 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2022-11-25 16:43:23,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:43:23,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 16:43:23,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:43:24,460 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:24,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:43:24,954 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:24,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243570914] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:43:24,954 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:43:24,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 15, 15] total 50 [2022-11-25 16:43:24,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182350736] [2022-11-25 16:43:24,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:43:24,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-11-25 16:43:24,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:43:24,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-11-25 16:43:24,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=553, Invalid=1997, Unknown=0, NotChecked=0, Total=2550 [2022-11-25 16:43:24,958 INFO L87 Difference]: Start difference. First operand 193 states and 210 transitions. Second operand has 51 states, 50 states have (on average 3.64) internal successors, (182), 51 states have internal predecessors, (182), 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 16:43:29,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:43:29,471 INFO L93 Difference]: Finished difference Result 436 states and 458 transitions. [2022-11-25 16:43:29,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-11-25 16:43:29,476 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 3.64) internal successors, (182), 51 states have internal predecessors, (182), 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 62 [2022-11-25 16:43:29,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:43:29,491 INFO L225 Difference]: With dead ends: 436 [2022-11-25 16:43:29,492 INFO L226 Difference]: Without dead ends: 435 [2022-11-25 16:43:29,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7684 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=5282, Invalid=14458, Unknown=0, NotChecked=0, Total=19740 [2022-11-25 16:43:29,496 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 974 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 16:43:29,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 64 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 16:43:29,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-11-25 16:43:29,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 183. [2022-11-25 16:43:29,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 181 states have (on average 1.1160220994475138) internal successors, (202), 182 states have internal predecessors, (202), 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 16:43:29,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 202 transitions. [2022-11-25 16:43:29,627 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 202 transitions. Word has length 62 [2022-11-25 16:43:29,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:43:29,628 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 202 transitions. [2022-11-25 16:43:29,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 3.64) internal successors, (182), 51 states have internal predecessors, (182), 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 16:43:29,628 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 202 transitions. [2022-11-25 16:43:29,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-25 16:43:29,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:43:29,629 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2022-11-25 16:43:29,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-25 16:43:29,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:43:29,830 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:43:29,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:29,830 INFO L85 PathProgramCache]: Analyzing trace with hash -362593675, now seen corresponding path program 7 times [2022-11-25 16:43:29,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:29,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293336858] [2022-11-25 16:43:29,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:29,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:30,440 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:30,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:43:30,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293336858] [2022-11-25 16:43:30,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293336858] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:43:30,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975581794] [2022-11-25 16:43:30,441 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-25 16:43:30,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:43:30,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:43:30,443 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:43:30,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-25 16:43:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:30,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-25 16:43:30,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:43:31,381 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:31,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:43:32,102 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:32,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975581794] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:43:32,103 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:43:32,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 19, 19] total 64 [2022-11-25 16:43:32,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862814679] [2022-11-25 16:43:32,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:43:32,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-11-25 16:43:32,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:43:32,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-11-25 16:43:32,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=871, Invalid=3289, Unknown=0, NotChecked=0, Total=4160 [2022-11-25 16:43:32,107 INFO L87 Difference]: Start difference. First operand 183 states and 202 transitions. Second operand has 65 states, 64 states have (on average 3.59375) internal successors, (230), 65 states have internal predecessors, (230), 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 16:43:40,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:43:40,930 INFO L93 Difference]: Finished difference Result 616 states and 647 transitions. [2022-11-25 16:43:40,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-11-25 16:43:40,930 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 3.59375) internal successors, (230), 65 states have internal predecessors, (230), 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 78 [2022-11-25 16:43:40,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:43:40,933 INFO L225 Difference]: With dead ends: 616 [2022-11-25 16:43:40,933 INFO L226 Difference]: Without dead ends: 615 [2022-11-25 16:43:40,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16721 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=10716, Invalid=30290, Unknown=0, NotChecked=0, Total=41006 [2022-11-25 16:43:40,939 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 1192 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:43:40,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1192 Valid, 82 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 16:43:40,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2022-11-25 16:43:41,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 209. [2022-11-25 16:43:41,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 207 states have (on average 1.144927536231884) internal successors, (237), 208 states have internal predecessors, (237), 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 16:43:41,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 237 transitions. [2022-11-25 16:43:41,127 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 237 transitions. Word has length 78 [2022-11-25 16:43:41,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:43:41,128 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 237 transitions. [2022-11-25 16:43:41,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 3.59375) internal successors, (230), 65 states have internal predecessors, (230), 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 16:43:41,128 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 237 transitions. [2022-11-25 16:43:41,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-25 16:43:41,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:43:41,129 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:43:41,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-25 16:43:41,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-25 16:43:41,331 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:43:41,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:41,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1221737874, now seen corresponding path program 3 times [2022-11-25 16:43:41,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:41,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715622701] [2022-11-25 16:43:41,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:41,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:41,658 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:41,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:43:41,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715622701] [2022-11-25 16:43:41,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715622701] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:43:41,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802837883] [2022-11-25 16:43:41,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 16:43:41,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:43:41,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:43:41,661 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:43:41,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-25 16:43:41,744 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-11-25 16:43:41,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:43:41,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 16:43:41,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:43:41,911 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:41,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:43:42,413 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:42,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802837883] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:43:42,413 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:43:42,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2022-11-25 16:43:42,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211787000] [2022-11-25 16:43:42,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:43:42,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-25 16:43:42,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:43:42,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-25 16:43:42,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-11-25 16:43:42,416 INFO L87 Difference]: Start difference. First operand 209 states and 237 transitions. Second operand has 32 states, 31 states have (on average 5.032258064516129) internal successors, (156), 32 states have internal predecessors, (156), 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 16:43:43,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:43:43,927 INFO L93 Difference]: Finished difference Result 935 states and 983 transitions. [2022-11-25 16:43:43,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-25 16:43:43,927 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 5.032258064516129) internal successors, (156), 32 states have internal predecessors, (156), 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 79 [2022-11-25 16:43:43,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:43:43,930 INFO L225 Difference]: With dead ends: 935 [2022-11-25 16:43:43,930 INFO L226 Difference]: Without dead ends: 934 [2022-11-25 16:43:43,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-11-25 16:43:43,932 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 530 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 16:43:43,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 161 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 16:43:43,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2022-11-25 16:43:44,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 261. [2022-11-25 16:43:44,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 259 states have (on average 1.135135135135135) internal successors, (294), 260 states have internal predecessors, (294), 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 16:43:44,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 294 transitions. [2022-11-25 16:43:44,069 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 294 transitions. Word has length 79 [2022-11-25 16:43:44,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:43:44,070 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 294 transitions. [2022-11-25 16:43:44,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 5.032258064516129) internal successors, (156), 32 states have internal predecessors, (156), 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 16:43:44,070 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 294 transitions. [2022-11-25 16:43:44,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-25 16:43:44,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:43:44,071 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 1, 1, 1, 1] [2022-11-25 16:43:44,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-25 16:43:44,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:43:44,275 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:43:44,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:44,276 INFO L85 PathProgramCache]: Analyzing trace with hash 698004038, now seen corresponding path program 3 times [2022-11-25 16:43:44,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:44,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274656834] [2022-11-25 16:43:44,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:44,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:45,107 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:45,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:43:45,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274656834] [2022-11-25 16:43:45,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274656834] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:43:45,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881623179] [2022-11-25 16:43:45,108 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 16:43:45,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:43:45,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:43:45,109 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:43:45,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-25 16:43:45,197 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-11-25 16:43:45,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:43:45,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-25 16:43:45,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:43:46,906 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:46,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:43:48,501 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:48,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881623179] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:43:48,502 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:43:48,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 91 [2022-11-25 16:43:48,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356054774] [2022-11-25 16:43:48,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:43:48,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-11-25 16:43:48,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:43:48,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-11-25 16:43:48,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1637, Invalid=6735, Unknown=0, NotChecked=0, Total=8372 [2022-11-25 16:43:48,505 INFO L87 Difference]: Start difference. First operand 261 states and 294 transitions. Second operand has 92 states, 91 states have (on average 3.021978021978022) internal successors, (275), 92 states have internal predecessors, (275), 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 16:43:59,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:43:59,578 INFO L93 Difference]: Finished difference Result 652 states and 700 transitions. [2022-11-25 16:43:59,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-11-25 16:43:59,578 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 91 states have (on average 3.021978021978022) internal successors, (275), 92 states have internal predecessors, (275), 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 93 [2022-11-25 16:43:59,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:43:59,580 INFO L225 Difference]: With dead ends: 652 [2022-11-25 16:43:59,581 INFO L226 Difference]: Without dead ends: 651 [2022-11-25 16:43:59,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10731 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=8689, Invalid=21761, Unknown=0, NotChecked=0, Total=30450 [2022-11-25 16:43:59,585 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 657 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 3421 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 3691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 3421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 16:43:59,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 216 Invalid, 3691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 3421 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 16:43:59,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2022-11-25 16:44:00,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 357. [2022-11-25 16:44:00,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 355 states have (on average 1.0985915492957747) internal successors, (390), 356 states have internal predecessors, (390), 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 16:44:00,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 390 transitions. [2022-11-25 16:44:00,014 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 390 transitions. Word has length 93 [2022-11-25 16:44:00,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:44:00,014 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 390 transitions. [2022-11-25 16:44:00,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 91 states have (on average 3.021978021978022) internal successors, (275), 92 states have internal predecessors, (275), 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 16:44:00,015 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 390 transitions. [2022-11-25 16:44:00,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-25 16:44:00,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:44:00,016 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 5, 5, 5, 5, 5, 1, 1, 1, 1] [2022-11-25 16:44:00,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-25 16:44:00,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:44:00,216 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:44:00,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:44:00,217 INFO L85 PathProgramCache]: Analyzing trace with hash 873996727, now seen corresponding path program 8 times [2022-11-25 16:44:00,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:44:00,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509712917] [2022-11-25 16:44:00,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:44:00,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:44:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:44:01,012 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:44:01,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:44:01,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509712917] [2022-11-25 16:44:01,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509712917] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:44:01,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801664456] [2022-11-25 16:44:01,013 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 16:44:01,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:44:01,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:44:01,015 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:44:01,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-25 16:44:01,083 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 16:44:01,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:44:01,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-25 16:44:01,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:44:02,755 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:44:02,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:44:04,399 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:44:04,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801664456] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:44:04,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:44:04,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2022-11-25 16:44:04,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075725917] [2022-11-25 16:44:04,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:44:04,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-11-25 16:44:04,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:44:04,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-11-25 16:44:04,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1279, Invalid=7651, Unknown=0, NotChecked=0, Total=8930 [2022-11-25 16:44:04,405 INFO L87 Difference]: Start difference. First operand 357 states and 390 transitions. Second operand has 95 states, 94 states have (on average 2.9574468085106385) internal successors, (278), 95 states have internal predecessors, (278), 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 16:44:42,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:44:42,047 INFO L93 Difference]: Finished difference Result 1383 states and 1444 transitions. [2022-11-25 16:44:42,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 352 states. [2022-11-25 16:44:42,048 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 2.9574468085106385) internal successors, (278), 95 states have internal predecessors, (278), 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 94 [2022-11-25 16:44:42,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:44:42,050 INFO L225 Difference]: With dead ends: 1383 [2022-11-25 16:44:42,051 INFO L226 Difference]: Without dead ends: 1382 [2022-11-25 16:44:42,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 423 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74825 ImplicationChecksByTransitivity, 31.3s TimeCoverageRelationStatistics Valid=38066, Invalid=142134, Unknown=0, NotChecked=0, Total=180200 [2022-11-25 16:44:42,064 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2810 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 8403 mSolverCounterSat, 693 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2810 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 9096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 693 IncrementalHoareTripleChecker+Valid, 8403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-25 16:44:42,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2810 Valid, 58 Invalid, 9096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [693 Valid, 8403 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-25 16:44:42,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2022-11-25 16:44:42,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 401. [2022-11-25 16:44:42,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 399 states have (on average 1.087719298245614) internal successors, (434), 400 states have internal predecessors, (434), 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 16:44:42,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 434 transitions. [2022-11-25 16:44:42,604 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 434 transitions. Word has length 94 [2022-11-25 16:44:42,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:44:42,604 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 434 transitions. [2022-11-25 16:44:42,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 2.9574468085106385) internal successors, (278), 95 states have internal predecessors, (278), 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 16:44:42,605 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 434 transitions. [2022-11-25 16:44:42,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-25 16:44:42,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:44:42,606 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1] [2022-11-25 16:44:42,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-25 16:44:42,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:44:42,816 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:44:42,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:44:42,816 INFO L85 PathProgramCache]: Analyzing trace with hash -718111200, now seen corresponding path program 9 times [2022-11-25 16:44:42,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:44:42,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135823038] [2022-11-25 16:44:42,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:44:42,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:44:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:44:43,510 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:44:43,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:44:43,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135823038] [2022-11-25 16:44:43,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135823038] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:44:43,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981329833] [2022-11-25 16:44:43,511 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 16:44:43,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:44:43,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:44:43,513 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:44:43,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-25 16:44:43,576 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-11-25 16:44:43,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:44:43,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-25 16:44:43,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:44:44,495 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:44:44,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:44:45,315 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:44:45,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981329833] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:44:45,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:44:45,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 23, 23] total 78 [2022-11-25 16:44:45,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944394416] [2022-11-25 16:44:45,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:44:45,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-11-25 16:44:45,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:44:45,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-11-25 16:44:45,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1260, Invalid=4902, Unknown=0, NotChecked=0, Total=6162 [2022-11-25 16:44:45,318 INFO L87 Difference]: Start difference. First operand 401 states and 434 transitions. Second operand has 79 states, 78 states have (on average 3.5641025641025643) internal successors, (278), 79 states have internal predecessors, (278), 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 16:44:58,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:44:58,121 INFO L93 Difference]: Finished difference Result 1023 states and 1064 transitions. [2022-11-25 16:44:58,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-11-25 16:44:58,122 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 78 states have (on average 3.5641025641025643) internal successors, (278), 79 states have internal predecessors, (278), 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 94 [2022-11-25 16:44:58,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:44:58,124 INFO L225 Difference]: With dead ends: 1023 [2022-11-25 16:44:58,124 INFO L226 Difference]: Without dead ends: 1022 [2022-11-25 16:44:58,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 261 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28693 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=17823, Invalid=51083, Unknown=0, NotChecked=0, Total=68906 [2022-11-25 16:44:58,130 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2100 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 603 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2100 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 1700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 603 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:44:58,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2100 Valid, 98 Invalid, 1700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [603 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 16:44:58,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2022-11-25 16:44:58,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 363. [2022-11-25 16:44:58,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 361 states have (on average 1.0997229916897506) internal successors, (397), 362 states have internal predecessors, (397), 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 16:44:58,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 397 transitions. [2022-11-25 16:44:58,607 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 397 transitions. Word has length 94 [2022-11-25 16:44:58,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:44:58,607 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 397 transitions. [2022-11-25 16:44:58,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 78 states have (on average 3.5641025641025643) internal successors, (278), 79 states have internal predecessors, (278), 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 16:44:58,608 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 397 transitions. [2022-11-25 16:44:58,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 16:44:58,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:44:58,609 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1] [2022-11-25 16:44:58,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-25 16:44:58,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:44:58,815 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:44:58,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:44:58,816 INFO L85 PathProgramCache]: Analyzing trace with hash -190624373, now seen corresponding path program 10 times [2022-11-25 16:44:58,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:44:58,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384943330] [2022-11-25 16:44:58,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:44:58,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:44:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:44:59,788 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 0 proven. 607 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:44:59,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:44:59,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384943330] [2022-11-25 16:44:59,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384943330] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:44:59,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747275909] [2022-11-25 16:44:59,789 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 16:44:59,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:44:59,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:44:59,791 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:44:59,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-25 16:44:59,858 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 16:44:59,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:44:59,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-25 16:44:59,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:45:01,319 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 0 proven. 607 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:45:01,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:45:03,036 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 0 proven. 607 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:45:03,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747275909] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:45:03,036 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:45:03,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 118 [2022-11-25 16:45:03,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692964903] [2022-11-25 16:45:03,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:45:03,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2022-11-25 16:45:03,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:45:03,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2022-11-25 16:45:03,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2779, Invalid=11263, Unknown=0, NotChecked=0, Total=14042 [2022-11-25 16:45:03,042 INFO L87 Difference]: Start difference. First operand 363 states and 397 transitions. Second operand has 119 states, 118 states have (on average 2.76271186440678) internal successors, (326), 119 states have internal predecessors, (326), 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 16:46:16,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:46:16,308 INFO L93 Difference]: Finished difference Result 2325 states and 2387 transitions. [2022-11-25 16:46:16,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 602 states. [2022-11-25 16:46:16,308 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 118 states have (on average 2.76271186440678) internal successors, (326), 119 states have internal predecessors, (326), 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 110 [2022-11-25 16:46:16,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:46:16,313 INFO L225 Difference]: With dead ends: 2325 [2022-11-25 16:46:16,314 INFO L226 Difference]: Without dead ends: 2324 [2022-11-25 16:46:16,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 840 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 698 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229628 ImplicationChecksByTransitivity, 56.6s TimeCoverageRelationStatistics Valid=98873, Invalid=390427, Unknown=0, NotChecked=0, Total=489300 [2022-11-25 16:46:16,351 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 7404 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 13974 mSolverCounterSat, 1806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7404 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 15780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1806 IncrementalHoareTripleChecker+Valid, 13974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-25 16:46:16,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7404 Valid, 30 Invalid, 15780 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1806 Valid, 13974 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-11-25 16:46:16,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2324 states. [2022-11-25 16:46:17,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2324 to 389. [2022-11-25 16:46:17,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 387 states have (on average 1.103359173126615) internal successors, (427), 388 states have internal predecessors, (427), 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 16:46:17,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 427 transitions. [2022-11-25 16:46:17,120 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 427 transitions. Word has length 110 [2022-11-25 16:46:17,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:46:17,121 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 427 transitions. [2022-11-25 16:46:17,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 118 states have (on average 2.76271186440678) internal successors, (326), 119 states have internal predecessors, (326), 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 16:46:17,121 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 427 transitions. [2022-11-25 16:46:17,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-25 16:46:17,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:46:17,124 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1] [2022-11-25 16:46:17,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-25 16:46:17,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-25 16:46:17,327 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:46:17,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:46:17,328 INFO L85 PathProgramCache]: Analyzing trace with hash 69722294, now seen corresponding path program 11 times [2022-11-25 16:46:17,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:46:17,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114489192] [2022-11-25 16:46:17,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:46:17,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:46:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:46:18,603 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:46:18,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:46:18,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114489192] [2022-11-25 16:46:18,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114489192] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:46:18,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397050379] [2022-11-25 16:46:18,604 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-25 16:46:18,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:46:18,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:46:18,605 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:46:18,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-25 16:46:18,693 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2022-11-25 16:46:18,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:46:18,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-25 16:46:18,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:46:20,748 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:46:20,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:46:23,491 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:46:23,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397050379] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:46:23,492 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:46:23,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 136 [2022-11-25 16:46:23,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436295475] [2022-11-25 16:46:23,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:46:23,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 137 states [2022-11-25 16:46:23,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:46:23,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2022-11-25 16:46:23,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3670, Invalid=14962, Unknown=0, NotChecked=0, Total=18632 [2022-11-25 16:46:23,497 INFO L87 Difference]: Start difference. First operand 389 states and 427 transitions. Second operand has 137 states, 136 states have (on average 2.75) internal successors, (374), 137 states have internal predecessors, (374), 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 16:48:29,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:48:29,085 INFO L93 Difference]: Finished difference Result 2785 states and 2855 transitions. [2022-11-25 16:48:29,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 799 states. [2022-11-25 16:48:29,086 INFO L78 Accepts]: Start accepts. Automaton has has 137 states, 136 states have (on average 2.75) internal successors, (374), 137 states have internal predecessors, (374), 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 126 [2022-11-25 16:48:29,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:48:29,091 INFO L225 Difference]: With dead ends: 2785 [2022-11-25 16:48:29,091 INFO L226 Difference]: Without dead ends: 2784 [2022-11-25 16:48:29,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1072 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 910 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400882 ImplicationChecksByTransitivity, 96.4s TimeCoverageRelationStatistics Valid=165156, Invalid=665676, Unknown=0, NotChecked=0, Total=830832 [2022-11-25 16:48:29,129 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 10167 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 22513 mSolverCounterSat, 2580 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10167 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 25093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2580 IncrementalHoareTripleChecker+Valid, 22513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2022-11-25 16:48:29,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10167 Valid, 38 Invalid, 25093 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2580 Valid, 22513 Invalid, 0 Unknown, 0 Unchecked, 14.3s Time] [2022-11-25 16:48:29,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2022-11-25 16:48:29,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 424. [2022-11-25 16:48:29,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 422 states have (on average 1.1090047393364928) internal successors, (468), 423 states have internal predecessors, (468), 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 16:48:29,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 468 transitions. [2022-11-25 16:48:29,895 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 468 transitions. Word has length 126 [2022-11-25 16:48:29,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:48:29,895 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 468 transitions. [2022-11-25 16:48:29,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 137 states, 136 states have (on average 2.75) internal successors, (374), 137 states have internal predecessors, (374), 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 16:48:29,895 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 468 transitions. [2022-11-25 16:48:29,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-25 16:48:29,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:48:29,897 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-25 16:48:29,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-25 16:48:30,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-25 16:48:30,098 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:48:30,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:48:30,098 INFO L85 PathProgramCache]: Analyzing trace with hash 326639796, now seen corresponding path program 12 times [2022-11-25 16:48:30,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:48:30,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430924493] [2022-11-25 16:48:30,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:48:30,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:48:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:48:31,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 0 proven. 1317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:48:31,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:48:31,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430924493] [2022-11-25 16:48:31,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430924493] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:48:31,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041802546] [2022-11-25 16:48:31,277 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-25 16:48:31,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:48:31,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:48:31,278 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:48:31,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-25 16:48:31,372 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2022-11-25 16:48:31,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:48:31,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-25 16:48:31,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:48:33,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 0 proven. 1317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:48:33,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:48:34,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 0 proven. 1317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:48:34,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041802546] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:48:34,661 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:48:34,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 50, 29] total 106 [2022-11-25 16:48:34,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554090973] [2022-11-25 16:48:34,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:48:34,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2022-11-25 16:48:34,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:48:34,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2022-11-25 16:48:34,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2968, Invalid=8374, Unknown=0, NotChecked=0, Total=11342 [2022-11-25 16:48:34,665 INFO L87 Difference]: Start difference. First operand 424 states and 468 transitions. Second operand has 107 states, 106 states have (on average 3.641509433962264) internal successors, (386), 107 states have internal predecessors, (386), 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 16:49:58,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:49:58,690 INFO L93 Difference]: Finished difference Result 3576 states and 3659 transitions. [2022-11-25 16:49:58,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 551 states. [2022-11-25 16:49:58,691 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 106 states have (on average 3.641509433962264) internal successors, (386), 107 states have internal predecessors, (386), 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 130 [2022-11-25 16:49:58,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:49:58,698 INFO L225 Difference]: With dead ends: 3576 [2022-11-25 16:49:58,698 INFO L226 Difference]: Without dead ends: 3575 [2022-11-25 16:49:58,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 833 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 630 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164785 ImplicationChecksByTransitivity, 44.3s TimeCoverageRelationStatistics Valid=59782, Invalid=339010, Unknown=0, NotChecked=0, Total=398792 [2022-11-25 16:49:58,717 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 5287 mSDsluCounter, 3650 mSDsCounter, 0 mSdLazyCounter, 45257 mSolverCounterSat, 1044 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5287 SdHoareTripleChecker+Valid, 3863 SdHoareTripleChecker+Invalid, 46301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1044 IncrementalHoareTripleChecker+Valid, 45257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:49:58,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5287 Valid, 3863 Invalid, 46301 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1044 Valid, 45257 Invalid, 0 Unknown, 0 Unchecked, 24.2s Time] [2022-11-25 16:49:58,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3575 states. [2022-11-25 16:49:59,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3575 to 484. [2022-11-25 16:49:59,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 482 states have (on average 1.1514522821576763) internal successors, (555), 483 states have internal predecessors, (555), 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 16:49:59,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 555 transitions. [2022-11-25 16:49:59,527 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 555 transitions. Word has length 130 [2022-11-25 16:49:59,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:49:59,528 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 555 transitions. [2022-11-25 16:49:59,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 106 states have (on average 3.641509433962264) internal successors, (386), 107 states have internal predecessors, (386), 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 16:49:59,528 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 555 transitions. [2022-11-25 16:49:59,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-25 16:49:59,530 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:49:59,530 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 7, 7, 7, 7, 7, 1, 1, 1, 1] [2022-11-25 16:49:59,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-25 16:49:59,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-25 16:49:59,731 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:49:59,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:49:59,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1421333913, now seen corresponding path program 13 times [2022-11-25 16:49:59,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:49:59,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178069136] [2022-11-25 16:49:59,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:49:59,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:49:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:50:01,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 0 proven. 1040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:50:01,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:50:01,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178069136] [2022-11-25 16:50:01,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178069136] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:50:01,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503215303] [2022-11-25 16:50:01,276 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-25 16:50:01,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:50:01,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:50:01,278 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:50:01,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-25 16:50:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:50:01,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-25 16:50:01,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:50:03,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 0 proven. 1040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:50:03,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:50:06,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 0 proven. 1040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:50:06,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503215303] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:50:06,896 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:50:06,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 41, 41] total 128 [2022-11-25 16:50:06,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005822293] [2022-11-25 16:50:06,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:50:06,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 129 states [2022-11-25 16:50:06,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:50:06,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2022-11-25 16:50:06,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2889, Invalid=13623, Unknown=0, NotChecked=0, Total=16512 [2022-11-25 16:50:06,901 INFO L87 Difference]: Start difference. First operand 484 states and 555 transitions. Second operand has 129 states, 128 states have (on average 3.25) internal successors, (416), 129 states have internal predecessors, (416), 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 16:51:11,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:51:11,126 INFO L93 Difference]: Finished difference Result 1979 states and 2081 transitions. [2022-11-25 16:51:11,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 444 states. [2022-11-25 16:51:11,127 INFO L78 Accepts]: Start accepts. Automaton has has 129 states, 128 states have (on average 3.25) internal successors, (416), 129 states have internal predecessors, (416), 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 140 [2022-11-25 16:51:11,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:51:11,131 INFO L225 Difference]: With dead ends: 1979 [2022-11-25 16:51:11,131 INFO L226 Difference]: Without dead ends: 1978 [2022-11-25 16:51:11,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 738 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 538 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134886 ImplicationChecksByTransitivity, 55.7s TimeCoverageRelationStatistics Valid=80398, Invalid=210662, Unknown=0, NotChecked=0, Total=291060 [2022-11-25 16:51:11,146 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3341 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 3680 mSolverCounterSat, 1174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3341 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 4854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1174 IncrementalHoareTripleChecker+Valid, 3680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-25 16:51:11,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3341 Valid, 194 Invalid, 4854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1174 Valid, 3680 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-25 16:51:11,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2022-11-25 16:51:12,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 508. [2022-11-25 16:51:12,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 506 states have (on average 1.1442687747035574) internal successors, (579), 507 states have internal predecessors, (579), 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 16:51:12,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 579 transitions. [2022-11-25 16:51:12,894 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 579 transitions. Word has length 140 [2022-11-25 16:51:12,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:51:12,894 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 579 transitions. [2022-11-25 16:51:12,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 129 states, 128 states have (on average 3.25) internal successors, (416), 129 states have internal predecessors, (416), 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 16:51:12,895 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 579 transitions. [2022-11-25 16:51:12,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-25 16:51:12,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:51:12,896 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 24, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2022-11-25 16:51:12,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-25 16:51:13,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-25 16:51:13,097 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:51:13,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:51:13,097 INFO L85 PathProgramCache]: Analyzing trace with hash 644268994, now seen corresponding path program 14 times [2022-11-25 16:51:13,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:51:13,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492319984] [2022-11-25 16:51:13,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:51:13,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:51:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:14,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 0 proven. 1470 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:51:14,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:51:14,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492319984] [2022-11-25 16:51:14,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492319984] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:51:14,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596592817] [2022-11-25 16:51:14,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 16:51:14,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:51:14,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:51:14,803 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:51:14,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-25 16:51:15,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 16:51:15,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:51:15,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-25 16:51:15,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:51:16,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 0 proven. 1470 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:51:16,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:51:18,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 0 proven. 1470 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:51:18,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596592817] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:51:18,101 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:51:18,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 30, 30] total 112 [2022-11-25 16:51:18,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819036403] [2022-11-25 16:51:18,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:51:18,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2022-11-25 16:51:18,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:51:18,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2022-11-25 16:51:18,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2992, Invalid=9664, Unknown=0, NotChecked=0, Total=12656 [2022-11-25 16:51:18,106 INFO L87 Difference]: Start difference. First operand 508 states and 579 transitions. Second operand has 113 states, 112 states have (on average 3.7410714285714284) internal successors, (419), 113 states have internal predecessors, (419), 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 16:51:49,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:51:49,621 INFO L93 Difference]: Finished difference Result 1705 states and 1769 transitions. [2022-11-25 16:51:49,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 347 states. [2022-11-25 16:51:49,622 INFO L78 Accepts]: Start accepts. Automaton has has 113 states, 112 states have (on average 3.7410714285714284) internal successors, (419), 113 states have internal predecessors, (419), 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 141 [2022-11-25 16:51:49,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:51:49,626 INFO L225 Difference]: With dead ends: 1705 [2022-11-25 16:51:49,626 INFO L226 Difference]: Without dead ends: 1704 [2022-11-25 16:51:49,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 405 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68495 ImplicationChecksByTransitivity, 22.3s TimeCoverageRelationStatistics Valid=38422, Invalid=126820, Unknown=0, NotChecked=0, Total=165242 [2022-11-25 16:51:49,638 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 4118 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 971 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4118 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 971 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 16:51:49,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4118 Valid, 86 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [971 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 16:51:49,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2022-11-25 16:51:51,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 543. [2022-11-25 16:51:51,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 541 states have (on average 1.1423290203327172) internal successors, (618), 542 states have internal predecessors, (618), 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 16:51:51,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 618 transitions. [2022-11-25 16:51:51,132 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 618 transitions. Word has length 141 [2022-11-25 16:51:51,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:51:51,133 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 618 transitions. [2022-11-25 16:51:51,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 112 states have (on average 3.7410714285714284) internal successors, (419), 113 states have internal predecessors, (419), 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 16:51:51,133 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 618 transitions. [2022-11-25 16:51:51,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-25 16:51:51,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:51:51,135 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1] [2022-11-25 16:51:51,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-25 16:51:51,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:51:51,342 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:51:51,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:51:51,343 INFO L85 PathProgramCache]: Analyzing trace with hash 214853537, now seen corresponding path program 15 times [2022-11-25 16:51:51,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:51:51,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321196128] [2022-11-25 16:51:51,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:51:51,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:51:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:52,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1049 backedges. 0 proven. 1049 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:51:52,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:51:52,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321196128] [2022-11-25 16:51:52,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321196128] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:51:52,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165527008] [2022-11-25 16:51:52,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 16:51:52,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:51:52,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:51:52,836 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:51:52,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-25 16:51:52,947 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2022-11-25 16:51:52,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:51:52,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-25 16:51:52,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:51:54,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1049 backedges. 0 proven. 1049 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:51:54,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:51:56,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1049 backedges. 0 proven. 1049 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:51:56,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165527008] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:51:56,858 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:51:56,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 35, 35] total 120 [2022-11-25 16:51:56,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660854072] [2022-11-25 16:51:56,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:51:56,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 121 states [2022-11-25 16:51:56,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:51:56,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2022-11-25 16:51:56,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2853, Invalid=11667, Unknown=0, NotChecked=0, Total=14520 [2022-11-25 16:51:56,864 INFO L87 Difference]: Start difference. First operand 543 states and 618 transitions. Second operand has 121 states, 120 states have (on average 3.5166666666666666) internal successors, (422), 121 states have internal predecessors, (422), 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 16:52:56,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:56,008 INFO L93 Difference]: Finished difference Result 1779 states and 1862 transitions. [2022-11-25 16:52:56,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 418 states. [2022-11-25 16:52:56,015 INFO L78 Accepts]: Start accepts. Automaton has has 121 states, 120 states have (on average 3.5166666666666666) internal successors, (422), 121 states have internal predecessors, (422), 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 142 [2022-11-25 16:52:56,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:56,019 INFO L225 Difference]: With dead ends: 1779 [2022-11-25 16:52:56,019 INFO L226 Difference]: Without dead ends: 1778 [2022-11-25 16:52:56,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 735 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 519 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120534 ImplicationChecksByTransitivity, 47.8s TimeCoverageRelationStatistics Valid=66813, Invalid=204107, Unknown=0, NotChecked=0, Total=270920 [2022-11-25 16:52:56,036 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4998 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 1729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4998 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 3395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1729 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:56,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4998 Valid, 142 Invalid, 3395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1729 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-25 16:52:56,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2022-11-25 16:52:57,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 523. [2022-11-25 16:52:57,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 521 states have (on average 1.1477927063339732) internal successors, (598), 522 states have internal predecessors, (598), 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 16:52:57,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 598 transitions. [2022-11-25 16:52:57,733 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 598 transitions. Word has length 142 [2022-11-25 16:52:57,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:57,733 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 598 transitions. [2022-11-25 16:52:57,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 121 states, 120 states have (on average 3.5166666666666666) internal successors, (422), 121 states have internal predecessors, (422), 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 16:52:57,733 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 598 transitions. [2022-11-25 16:52:57,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-25 16:52:57,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:57,736 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1] [2022-11-25 16:52:57,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-25 16:52:57,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:57,944 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 16:52:57,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:57,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1069477300, now seen corresponding path program 16 times [2022-11-25 16:52:57,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:57,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301732032] [2022-11-25 16:52:57,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:57,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:59,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 0 proven. 1315 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:59,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:59,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301732032] [2022-11-25 16:52:59,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301732032] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:52:59,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109197058] [2022-11-25 16:52:59,805 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 16:52:59,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:52:59,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:52:59,807 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:52:59,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f614cce7-a5d7-4ccf-9106-9839f0c21cac/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-25 16:52:59,890 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 16:52:59,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:52:59,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-25 16:52:59,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:53:02,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 0 proven. 1315 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:02,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:53:06,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 0 proven. 1315 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:06,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109197058] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:53:06,973 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:53:06,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58, 58] total 172 [2022-11-25 16:53:06,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683716982] [2022-11-25 16:53:06,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:53:06,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 173 states [2022-11-25 16:53:06,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:06,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 173 interpolants. [2022-11-25 16:53:06,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5824, Invalid=23932, Unknown=0, NotChecked=0, Total=29756 [2022-11-25 16:53:06,984 INFO L87 Difference]: Start difference. First operand 523 states and 598 transitions. Second operand has 173 states, 172 states have (on average 2.7325581395348837) internal successors, (470), 173 states have internal predecessors, (470), 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)