./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN --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 faa806fd1be90697a522dfc0988145f6572d5d87fac98caf7aa5fe5b66e6095c --- 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-6b4ec56 [2022-11-20 11:26:00,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:26:00,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:26:00,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:26:00,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:26:00,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:26:00,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:26:00,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:26:00,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:26:00,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:26:00,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:26:00,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:26:00,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:26:00,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:26:00,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:26:00,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:26:00,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:26:00,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:26:00,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:26:00,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:26:00,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:26:00,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:26:00,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:26:00,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:26:00,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:26:00,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:26:00,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:26:00,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:26:00,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:26:00,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:26:00,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:26:00,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:26:00,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:26:00,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:26:00,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:26:00,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:26:00,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:26:00,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:26:00,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:26:00,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:26:00,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:26:00,226 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-20 11:26:00,266 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:26:00,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:26:00,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:26:00,272 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:26:00,272 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:26:00,273 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:26:00,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:26:00,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:26:00,274 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:26:00,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:26:00,275 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:26:00,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:26:00,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:26:00,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:26:00,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:26:00,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:26:00,277 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:26:00,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:26:00,278 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:26:00,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:26:00,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:26:00,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:26:00,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:26:00,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:26:00,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:26:00,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:26:00,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:26:00,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:26:00,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:26:00,281 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:26:00,281 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:26:00,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:26:00,282 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faa806fd1be90697a522dfc0988145f6572d5d87fac98caf7aa5fe5b66e6095c [2022-11-20 11:26:00,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:26:00,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:26:00,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:26:00,612 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:26:00,613 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:26:00,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c [2022-11-20 11:26:03,831 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:26:04,006 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:26:04,006 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c [2022-11-20 11:26:04,014 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/data/342602ecc/3615accf8450444d8e515e305eb6c10d/FLAG67cfea21f [2022-11-20 11:26:04,033 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/data/342602ecc/3615accf8450444d8e515e305eb6c10d [2022-11-20 11:26:04,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:26:04,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:26:04,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:26:04,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:26:04,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:26:04,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:26:04" (1/1) ... [2022-11-20 11:26:04,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7575d5cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:26:04, skipping insertion in model container [2022-11-20 11:26:04,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:26:04" (1/1) ... [2022-11-20 11:26:04,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:26:04,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:26:04,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:26:04,297 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:26:04,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:26:04,328 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:26:04,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:26:04 WrapperNode [2022-11-20 11:26:04,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:26:04,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:26:04,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:26:04,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:26:04,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:26:04" (1/1) ... [2022-11-20 11:26:04,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:26:04" (1/1) ... [2022-11-20 11:26:04,370 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-11-20 11:26:04,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:26:04,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:26:04,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:26:04,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:26:04,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:26:04" (1/1) ... [2022-11-20 11:26:04,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:26:04" (1/1) ... [2022-11-20 11:26:04,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:26:04" (1/1) ... [2022-11-20 11:26:04,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:26:04" (1/1) ... [2022-11-20 11:26:04,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:26:04" (1/1) ... [2022-11-20 11:26:04,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:26:04" (1/1) ... [2022-11-20 11:26:04,398 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:26:04" (1/1) ... [2022-11-20 11:26:04,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:26:04" (1/1) ... [2022-11-20 11:26:04,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:26:04,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:26:04,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:26:04,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:26:04,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:26:04" (1/1) ... [2022-11-20 11:26:04,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:26:04,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:26:04,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:26:04,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:26:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:26:04,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:26:04,596 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:26:04,598 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:26:04,761 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:26:04,787 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:26:04,787 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:26:04,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:26:04 BoogieIcfgContainer [2022-11-20 11:26:04,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:26:04,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:26:04,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:26:04,813 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:26:04,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:26:04" (1/3) ... [2022-11-20 11:26:04,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be991d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:26:04, skipping insertion in model container [2022-11-20 11:26:04,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:26:04" (2/3) ... [2022-11-20 11:26:04,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be991d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:26:04, skipping insertion in model container [2022-11-20 11:26:04,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:26:04" (3/3) ... [2022-11-20 11:26:04,831 INFO L112 eAbstractionObserver]: Analyzing ICFG McCarthyIterative.c [2022-11-20 11:26:04,851 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:26:04,867 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-20 11:26:04,959 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:26:04,972 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;@91d296a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:26:04,972 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-20 11:26:04,977 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:26:04,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 11:26:04,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:26:04,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 11:26:04,986 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 11:26:04,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:26:04,998 INFO L85 PathProgramCache]: Analyzing trace with hash 28700073, now seen corresponding path program 1 times [2022-11-20 11:26:05,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:26:05,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204265299] [2022-11-20 11:26:05,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:26:05,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:26:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:26:05,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:05,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:26:05,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204265299] [2022-11-20 11:26:05,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204265299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:26:05,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:26:05,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:26:05,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735296199] [2022-11-20 11:26:05,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:26:05,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:26:05,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:26:05,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:26:05,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:26:05,245 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 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) [2022-11-20 11:26:05,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:26:05,306 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2022-11-20 11:26:05,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:26:05,309 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 [2022-11-20 11:26:05,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:26:05,318 INFO L225 Difference]: With dead ends: 28 [2022-11-20 11:26:05,318 INFO L226 Difference]: Without dead ends: 19 [2022-11-20 11:26:05,321 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 [2022-11-20 11:26:05,325 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:26:05,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 35 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:26:05,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-20 11:26:05,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-20 11:26:05,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 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) [2022-11-20 11:26:05,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-20 11:26:05,362 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 5 [2022-11-20 11:26:05,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:26:05,362 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-20 11:26:05,362 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) [2022-11-20 11:26:05,363 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-20 11:26:05,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 11:26:05,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:26:05,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 11:26:05,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:26:05,364 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 11:26:05,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:26:05,365 INFO L85 PathProgramCache]: Analyzing trace with hash 28699753, now seen corresponding path program 1 times [2022-11-20 11:26:05,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:26:05,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524398036] [2022-11-20 11:26:05,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:26:05,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:26:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:26:05,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:05,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:26:05,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524398036] [2022-11-20 11:26:05,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524398036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:26:05,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:26:05,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:26:05,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392577725] [2022-11-20 11:26:05,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:26:05,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:26:05,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:26:05,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:26:05,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:26:05,401 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. 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) [2022-11-20 11:26:05,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:26:05,450 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-11-20 11:26:05,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:26:05,451 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 [2022-11-20 11:26:05,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:26:05,452 INFO L225 Difference]: With dead ends: 28 [2022-11-20 11:26:05,452 INFO L226 Difference]: Without dead ends: 27 [2022-11-20 11:26:05,453 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 [2022-11-20 11:26:05,454 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:26:05,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 22 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:26:05,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-20 11:26:05,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2022-11-20 11:26:05,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:26:05,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2022-11-20 11:26:05,462 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 5 [2022-11-20 11:26:05,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:26:05,463 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2022-11-20 11:26:05,463 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) [2022-11-20 11:26:05,463 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-11-20 11:26:05,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 11:26:05,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:26:05,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 11:26:05,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:26:05,465 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 11:26:05,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:26:05,466 INFO L85 PathProgramCache]: Analyzing trace with hash 889702321, now seen corresponding path program 1 times [2022-11-20 11:26:05,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:26:05,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090980166] [2022-11-20 11:26:05,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:26:05,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:26:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:26:05,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:05,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:26:05,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090980166] [2022-11-20 11:26:05,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090980166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:26:05,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:26:05,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:26:05,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624645705] [2022-11-20 11:26:05,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:26:05,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:26:05,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:26:05,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:26:05,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:26:05,526 INFO L87 Difference]: Start difference. First operand 25 states and 30 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) [2022-11-20 11:26:05,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:26:05,547 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2022-11-20 11:26:05,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:26:05,548 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 [2022-11-20 11:26:05,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:26:05,549 INFO L225 Difference]: With dead ends: 25 [2022-11-20 11:26:05,549 INFO L226 Difference]: Without dead ends: 24 [2022-11-20 11:26:05,550 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 [2022-11-20 11:26:05,551 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:26:05,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 12 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:26:05,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-20 11:26:05,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-20 11:26:05,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 23 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) [2022-11-20 11:26:05,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-11-20 11:26:05,558 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 6 [2022-11-20 11:26:05,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:26:05,559 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-11-20 11:26:05,559 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) [2022-11-20 11:26:05,559 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-11-20 11:26:05,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 11:26:05,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:26:05,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 11:26:05,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:26:05,561 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 11:26:05,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:26:05,562 INFO L85 PathProgramCache]: Analyzing trace with hash 889692391, now seen corresponding path program 1 times [2022-11-20 11:26:05,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:26:05,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062879170] [2022-11-20 11:26:05,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:26:05,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:26:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:26:05,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:05,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:26:05,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062879170] [2022-11-20 11:26:05,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062879170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:26:05,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:26:05,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:26:05,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296092208] [2022-11-20 11:26:05,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:26:05,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:26:05,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:26:05,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:26:05,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:26:05,595 INFO L87 Difference]: Start difference. First operand 24 states and 29 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) [2022-11-20 11:26:05,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:26:05,613 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2022-11-20 11:26:05,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:26:05,614 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 [2022-11-20 11:26:05,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:26:05,615 INFO L225 Difference]: With dead ends: 24 [2022-11-20 11:26:05,616 INFO L226 Difference]: Without dead ends: 23 [2022-11-20 11:26:05,616 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 [2022-11-20 11:26:05,618 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 1 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:26:05,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:26:05,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-20 11:26:05,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-20 11:26:05,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.5) internal successors, (27), 22 states have internal predecessors, (27), 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) [2022-11-20 11:26:05,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-11-20 11:26:05,625 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 6 [2022-11-20 11:26:05,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:26:05,626 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-11-20 11:26:05,626 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) [2022-11-20 11:26:05,626 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-11-20 11:26:05,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 11:26:05,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:26:05,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:26:05,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:26:05,628 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 11:26:05,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:26:05,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1810968235, now seen corresponding path program 1 times [2022-11-20 11:26:05,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:26:05,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340035444] [2022-11-20 11:26:05,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:26:05,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:26:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:26:05,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:05,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:26:05,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340035444] [2022-11-20 11:26:05,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340035444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:26:05,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:26:05,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:26:05,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151397820] [2022-11-20 11:26:05,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:26:05,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:26:05,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:26:05,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:26:05,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:26:05,673 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:26:05,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:26:05,703 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-11-20 11:26:05,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:26:05,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-20 11:26:05,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:26:05,704 INFO L225 Difference]: With dead ends: 29 [2022-11-20 11:26:05,705 INFO L226 Difference]: Without dead ends: 27 [2022-11-20 11:26:05,705 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 [2022-11-20 11:26:05,707 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:26:05,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 19 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:26:05,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-20 11:26:05,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2022-11-20 11:26:05,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.380952380952381) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:26:05,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-11-20 11:26:05,713 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 7 [2022-11-20 11:26:05,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:26:05,714 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-11-20 11:26:05,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:26:05,714 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-11-20 11:26:05,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 11:26:05,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:26:05,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:26:05,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:26:05,716 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 11:26:05,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:26:05,716 INFO L85 PathProgramCache]: Analyzing trace with hash 305440499, now seen corresponding path program 1 times [2022-11-20 11:26:05,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:26:05,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043759851] [2022-11-20 11:26:05,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:26:05,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:26:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:26:05,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:05,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:26:05,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043759851] [2022-11-20 11:26:05,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043759851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:26:05,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:26:05,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:26:05,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441808467] [2022-11-20 11:26:05,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:26:05,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:26:05,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:26:05,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:26:05,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:26:05,761 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2022-11-20 11:26:05,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:26:05,804 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-11-20 11:26:05,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:26:05,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 [2022-11-20 11:26:05,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:26:05,822 INFO L225 Difference]: With dead ends: 28 [2022-11-20 11:26:05,822 INFO L226 Difference]: Without dead ends: 26 [2022-11-20 11:26:05,823 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 [2022-11-20 11:26:05,825 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:26:05,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 10 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:26:05,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-20 11:26:05,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-11-20 11:26:05,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:26:05,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-11-20 11:26:05,846 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 8 [2022-11-20 11:26:05,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:26:05,846 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-11-20 11:26:05,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2022-11-20 11:26:05,847 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-11-20 11:26:05,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 11:26:05,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:26:05,848 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:26:05,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:26:05,849 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 11:26:05,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:26:05,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1657753704, now seen corresponding path program 1 times [2022-11-20 11:26:05,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:26:05,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248224245] [2022-11-20 11:26:05,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:26:05,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:26:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:26:05,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:05,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:26:05,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248224245] [2022-11-20 11:26:05,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248224245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:26:05,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:26:05,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:26:05,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354611619] [2022-11-20 11:26:05,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:26:05,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:26:05,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:26:05,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:26:05,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:26:05,977 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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) [2022-11-20 11:26:06,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:26:06,025 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2022-11-20 11:26:06,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:26:06,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 [2022-11-20 11:26:06,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:26:06,032 INFO L225 Difference]: With dead ends: 24 [2022-11-20 11:26:06,033 INFO L226 Difference]: Without dead ends: 23 [2022-11-20 11:26:06,033 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 [2022-11-20 11:26:06,035 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:26:06,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 31 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:26:06,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-20 11:26:06,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-20 11:26:06,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 22 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:26:06,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-11-20 11:26:06,048 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 11 [2022-11-20 11:26:06,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:26:06,049 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-11-20 11:26:06,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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) [2022-11-20 11:26:06,049 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-11-20 11:26:06,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 11:26:06,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:26:06,050 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-20 11:26:06,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:26:06,050 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 11:26:06,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:26:06,051 INFO L85 PathProgramCache]: Analyzing trace with hash 331866650, now seen corresponding path program 1 times [2022-11-20 11:26:06,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:26:06,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364905068] [2022-11-20 11:26:06,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:26:06,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:26:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:26:06,150 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:06,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:26:06,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364905068] [2022-11-20 11:26:06,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364905068] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:26:06,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890251632] [2022-11-20 11:26:06,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:26:06,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:26:06,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:26:06,156 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:26:06,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:26:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:26:06,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:26:06,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:26:06,318 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:06,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:26:06,403 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:06,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890251632] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:26:06,404 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:26:06,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-20 11:26:06,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023333755] [2022-11-20 11:26:06,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:26:06,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:26:06,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:26:06,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:26:06,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:26:06,407 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:26:06,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:26:06,479 INFO L93 Difference]: Finished difference Result 64 states and 76 transitions. [2022-11-20 11:26:06,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:26:06,480 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-20 11:26:06,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:26:06,481 INFO L225 Difference]: With dead ends: 64 [2022-11-20 11:26:06,481 INFO L226 Difference]: Without dead ends: 62 [2022-11-20 11:26:06,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:26:06,483 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 32 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:26:06,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 36 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:26:06,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-20 11:26:06,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 45. [2022-11-20 11:26:06,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 44 states have internal predecessors, (50), 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) [2022-11-20 11:26:06,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2022-11-20 11:26:06,494 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 13 [2022-11-20 11:26:06,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:26:06,495 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2022-11-20 11:26:06,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:26:06,495 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2022-11-20 11:26:06,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-20 11:26:06,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:26:06,496 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1] [2022-11-20 11:26:06,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:26:06,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:26:06,698 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)] === [2022-11-20 11:26:06,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:26:06,698 INFO L85 PathProgramCache]: Analyzing trace with hash 2065850599, now seen corresponding path program 2 times [2022-11-20 11:26:06,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:26:06,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399557052] [2022-11-20 11:26:06,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:26:06,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:26:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:26:06,996 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:06,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:26:06,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399557052] [2022-11-20 11:26:06,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399557052] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:26:06,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518859781] [2022-11-20 11:26:06,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:26:06,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:26:06,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:26:07,000 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:26:07,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:26:07,077 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:26:07,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:26:07,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:26:07,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:26:07,204 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:07,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:26:07,370 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:07,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518859781] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:26:07,371 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:26:07,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-20 11:26:07,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617869547] [2022-11-20 11:26:07,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:26:07,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:26:07,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:26:07,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:26:07,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:26:07,378 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 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) [2022-11-20 11:26:07,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:26:07,570 INFO L93 Difference]: Finished difference Result 184 states and 221 transitions. [2022-11-20 11:26:07,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:26:07,571 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 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) Word has length 31 [2022-11-20 11:26:07,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:26:07,578 INFO L225 Difference]: With dead ends: 184 [2022-11-20 11:26:07,578 INFO L226 Difference]: Without dead ends: 182 [2022-11-20 11:26:07,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:26:07,586 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 78 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:26:07,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 74 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:26:07,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-20 11:26:07,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 105. [2022-11-20 11:26:07,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 103 states have (on average 1.1262135922330097) internal successors, (116), 104 states have internal predecessors, (116), 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) [2022-11-20 11:26:07,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 116 transitions. [2022-11-20 11:26:07,617 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 116 transitions. Word has length 31 [2022-11-20 11:26:07,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:26:07,617 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 116 transitions. [2022-11-20 11:26:07,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 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) [2022-11-20 11:26:07,618 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 116 transitions. [2022-11-20 11:26:07,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-20 11:26:07,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:26:07,620 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 1, 1, 1] [2022-11-20 11:26:07,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:26:07,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:26:07,827 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 11:26:07,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:26:07,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1486781759, now seen corresponding path program 3 times [2022-11-20 11:26:07,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:26:07,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640504405] [2022-11-20 11:26:07,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:26:07,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:26:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:26:08,175 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:08,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:26:08,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640504405] [2022-11-20 11:26:08,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640504405] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:26:08,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661558002] [2022-11-20 11:26:08,177 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 11:26:08,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:26:08,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:26:08,180 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:26:08,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:26:08,269 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-20 11:26:08,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:26:08,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 11:26:08,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:26:08,421 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:08,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:26:08,816 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:08,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661558002] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:26:08,817 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:26:08,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-20 11:26:08,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947064942] [2022-11-20 11:26:08,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:26:08,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-20 11:26:08,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:26:08,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-20 11:26:08,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-20 11:26:08,820 INFO L87 Difference]: Start difference. First operand 105 states and 116 transitions. Second operand has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 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) [2022-11-20 11:26:09,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:26:09,125 INFO L93 Difference]: Finished difference Result 559 states and 659 transitions. [2022-11-20 11:26:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-20 11:26:09,126 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 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 67 [2022-11-20 11:26:09,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:26:09,128 INFO L225 Difference]: With dead ends: 559 [2022-11-20 11:26:09,129 INFO L226 Difference]: Without dead ends: 557 [2022-11-20 11:26:09,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-20 11:26:09,130 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 205 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:26:09,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 149 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:26:09,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-11-20 11:26:09,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 225. [2022-11-20 11:26:09,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 223 states have (on average 1.1121076233183858) internal successors, (248), 224 states have internal predecessors, (248), 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) [2022-11-20 11:26:09,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 248 transitions. [2022-11-20 11:26:09,158 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 248 transitions. Word has length 67 [2022-11-20 11:26:09,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:26:09,158 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 248 transitions. [2022-11-20 11:26:09,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 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) [2022-11-20 11:26:09,159 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 248 transitions. [2022-11-20 11:26:09,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-20 11:26:09,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:26:09,163 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 1, 1, 1] [2022-11-20 11:26:09,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:26:09,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 11:26:09,369 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 11:26:09,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:26:09,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1299650421, now seen corresponding path program 4 times [2022-11-20 11:26:09,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:26:09,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124066307] [2022-11-20 11:26:09,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:26:09,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:26:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:26:10,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:10,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:26:10,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124066307] [2022-11-20 11:26:10,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124066307] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:26:10,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816028698] [2022-11-20 11:26:10,278 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 11:26:10,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:26:10,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:26:10,279 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:26:10,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 11:26:10,375 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 11:26:10,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:26:10,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-20 11:26:10,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:26:10,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:10,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:26:12,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:12,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816028698] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:26:12,087 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:26:12,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-20 11:26:12,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299052649] [2022-11-20 11:26:12,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:26:12,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-20 11:26:12,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:26:12,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-20 11:26:12,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-20 11:26:12,096 INFO L87 Difference]: Start difference. First operand 225 states and 248 transitions. Second operand has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 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) [2022-11-20 11:26:12,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:26:12,837 INFO L93 Difference]: Finished difference Result 1849 states and 2129 transitions. [2022-11-20 11:26:12,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-20 11:26:12,838 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 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 139 [2022-11-20 11:26:12,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:26:12,845 INFO L225 Difference]: With dead ends: 1849 [2022-11-20 11:26:12,845 INFO L226 Difference]: Without dead ends: 1847 [2022-11-20 11:26:12,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-20 11:26:12,848 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 698 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:26:12,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 290 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:26:12,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2022-11-20 11:26:12,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 465. [2022-11-20 11:26:12,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 463 states have (on average 1.1058315334773219) internal successors, (512), 464 states have internal predecessors, (512), 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) [2022-11-20 11:26:12,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 512 transitions. [2022-11-20 11:26:12,888 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 512 transitions. Word has length 139 [2022-11-20 11:26:12,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:26:12,889 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 512 transitions. [2022-11-20 11:26:12,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 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) [2022-11-20 11:26:12,890 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 512 transitions. [2022-11-20 11:26:12,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-11-20 11:26:12,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:26:12,898 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 1, 1, 1] [2022-11-20 11:26:12,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:26:13,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-20 11:26:13,105 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 11:26:13,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:26:13,106 INFO L85 PathProgramCache]: Analyzing trace with hash 534086877, now seen corresponding path program 5 times [2022-11-20 11:26:13,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:26:13,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538929770] [2022-11-20 11:26:13,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:26:13,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:26:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:26:15,989 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:15,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:26:15,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538929770] [2022-11-20 11:26:15,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538929770] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:26:15,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914223586] [2022-11-20 11:26:15,990 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-20 11:26:15,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:26:15,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:26:15,996 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:26:16,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 11:26:16,185 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-20 11:26:16,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:26:16,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-20 11:26:16,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:26:16,675 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:16,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:26:20,200 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:20,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914223586] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:26:20,201 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:26:20,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-11-20 11:26:20,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345390026] [2022-11-20 11:26:20,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:26:20,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-20 11:26:20,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:26:20,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-20 11:26:20,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-20 11:26:20,208 INFO L87 Difference]: Start difference. First operand 465 states and 512 transitions. Second operand has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 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) [2022-11-20 11:26:23,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:26:23,411 INFO L93 Difference]: Finished difference Result 6589 states and 7445 transitions. [2022-11-20 11:26:23,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-20 11:26:23,412 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 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 283 [2022-11-20 11:26:23,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:26:23,431 INFO L225 Difference]: With dead ends: 6589 [2022-11-20 11:26:23,431 INFO L226 Difference]: Without dead ends: 6587 [2022-11-20 11:26:23,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-20 11:26:23,437 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 1937 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 551 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1937 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 551 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:26:23,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1937 Valid, 576 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [551 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 11:26:23,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6587 states. [2022-11-20 11:26:23,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6587 to 945. [2022-11-20 11:26:23,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 943 states have (on average 1.1028632025450689) internal successors, (1040), 944 states have internal predecessors, (1040), 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) [2022-11-20 11:26:23,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1040 transitions. [2022-11-20 11:26:23,505 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1040 transitions. Word has length 283 [2022-11-20 11:26:23,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:26:23,506 INFO L495 AbstractCegarLoop]: Abstraction has 945 states and 1040 transitions. [2022-11-20 11:26:23,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 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) [2022-11-20 11:26:23,506 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1040 transitions. [2022-11-20 11:26:23,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2022-11-20 11:26:23,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:26:23,518 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 94, 1, 1, 1] [2022-11-20 11:26:23,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:26:23,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-20 11:26:23,724 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 11:26:23,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:26:23,726 INFO L85 PathProgramCache]: Analyzing trace with hash 571436973, now seen corresponding path program 6 times [2022-11-20 11:26:23,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:26:23,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209522507] [2022-11-20 11:26:23,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:26:23,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:26:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:26:32,224 INFO L134 CoverageAnalysis]: Checked inductivity of 26696 backedges. 0 proven. 26696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:32,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:26:32,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209522507] [2022-11-20 11:26:32,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209522507] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:26:32,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336337138] [2022-11-20 11:26:32,225 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-20 11:26:32,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:26:32,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:26:32,231 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:26:32,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 11:26:32,565 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-11-20 11:26:32,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:26:32,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 954 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-20 11:26:32,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:26:33,630 INFO L134 CoverageAnalysis]: Checked inductivity of 26696 backedges. 0 proven. 26696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:33,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:26:45,710 INFO L134 CoverageAnalysis]: Checked inductivity of 26696 backedges. 0 proven. 26696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:26:45,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336337138] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:26:45,711 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:26:45,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-11-20 11:26:45,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195981432] [2022-11-20 11:26:45,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:26:45,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-11-20 11:26:45,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:26:45,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-11-20 11:26:45,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-20 11:26:45,730 INFO L87 Difference]: Start difference. First operand 945 states and 1040 transitions. Second operand has 192 states, 191 states have (on average 5.973821989528796) internal successors, (1141), 192 states have internal predecessors, (1141), 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) [2022-11-20 11:27:05,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:27:05,693 INFO L93 Difference]: Finished difference Result 24709 states and 27581 transitions. [2022-11-20 11:27:05,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-11-20 11:27:05,694 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 5.973821989528796) internal successors, (1141), 192 states have internal predecessors, (1141), 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 571 [2022-11-20 11:27:05,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:27:05,778 INFO L225 Difference]: With dead ends: 24709 [2022-11-20 11:27:05,778 INFO L226 Difference]: Without dead ends: 24707 [2022-11-20 11:27:05,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1236 GetRequests, 1046 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-20 11:27:05,797 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3646 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 1059 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3646 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1059 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:27:05,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3646 Valid, 1158 Invalid, 2029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1059 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-20 11:27:05,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24707 states. [2022-11-20 11:27:06,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24707 to 1905. [2022-11-20 11:27:06,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1905 states, 1903 states have (on average 1.1014188124014714) internal successors, (2096), 1904 states have internal predecessors, (2096), 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) [2022-11-20 11:27:06,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2096 transitions. [2022-11-20 11:27:06,054 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2096 transitions. Word has length 571 [2022-11-20 11:27:06,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:27:06,056 INFO L495 AbstractCegarLoop]: Abstraction has 1905 states and 2096 transitions. [2022-11-20 11:27:06,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 5.973821989528796) internal successors, (1141), 192 states have internal predecessors, (1141), 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) [2022-11-20 11:27:06,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2096 transitions. [2022-11-20 11:27:06,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1148 [2022-11-20 11:27:06,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:27:06,108 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 190, 190, 1, 1, 1] [2022-11-20 11:27:06,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:27:06,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-20 11:27:06,315 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 11:27:06,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:06,317 INFO L85 PathProgramCache]: Analyzing trace with hash 569869645, now seen corresponding path program 7 times [2022-11-20 11:27:06,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:27:06,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41186694] [2022-11-20 11:27:06,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:06,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:27:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:42,607 INFO L134 CoverageAnalysis]: Checked inductivity of 108680 backedges. 0 proven. 108680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:27:42,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:27:42,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41186694] [2022-11-20 11:27:42,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41186694] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:27:42,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915105012] [2022-11-20 11:27:42,608 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-20 11:27:42,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:27:42,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:27:42,610 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:27:42,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 11:27:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:43,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 1914 conjuncts, 192 conjunts are in the unsatisfiable core [2022-11-20 11:27:43,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:27:45,020 INFO L134 CoverageAnalysis]: Checked inductivity of 108680 backedges. 0 proven. 108680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:27:45,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:28:37,620 INFO L134 CoverageAnalysis]: Checked inductivity of 108680 backedges. 0 proven. 108680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:28:37,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915105012] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:28:37,620 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:28:37,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-11-20 11:28:37,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705608044] [2022-11-20 11:28:37,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:28:37,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-11-20 11:28:37,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:28:37,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-11-20 11:28:37,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-11-20 11:28:37,671 INFO L87 Difference]: Start difference. First operand 1905 states and 2096 transitions. Second operand has 384 states, 383 states have (on average 5.986945169712794) internal successors, (2293), 384 states have internal predecessors, (2293), 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) [2022-11-20 11:33:52,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:33:52,902 INFO L93 Difference]: Finished difference Result 95509 states and 105869 transitions. [2022-11-20 11:33:52,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-11-20 11:33:52,903 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 5.986945169712794) internal successors, (2293), 384 states have internal predecessors, (2293), 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 1147 [2022-11-20 11:33:52,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:33:53,110 INFO L225 Difference]: With dead ends: 95509 [2022-11-20 11:33:53,110 INFO L226 Difference]: Without dead ends: 95507 [2022-11-20 11:33:53,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2484 GetRequests, 2102 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 66.8s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-11-20 11:33:53,204 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 7782 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 1930 mSolverCounterSat, 2253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7782 SdHoareTripleChecker+Valid, 2311 SdHoareTripleChecker+Invalid, 4183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2253 IncrementalHoareTripleChecker+Valid, 1930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:33:53,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7782 Valid, 2311 Invalid, 4183 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2253 Valid, 1930 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-20 11:33:53,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95507 states. [2022-11-20 11:33:54,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95507 to 3825. [2022-11-20 11:33:54,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3825 states, 3823 states have (on average 1.1007062516348418) internal successors, (4208), 3824 states have internal predecessors, (4208), 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) [2022-11-20 11:33:54,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3825 states to 3825 states and 4208 transitions. [2022-11-20 11:33:54,149 INFO L78 Accepts]: Start accepts. Automaton has 3825 states and 4208 transitions. Word has length 1147 [2022-11-20 11:33:54,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:33:54,151 INFO L495 AbstractCegarLoop]: Abstraction has 3825 states and 4208 transitions. [2022-11-20 11:33:54,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 5.986945169712794) internal successors, (2293), 384 states have internal predecessors, (2293), 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) [2022-11-20 11:33:54,152 INFO L276 IsEmpty]: Start isEmpty. Operand 3825 states and 4208 transitions. [2022-11-20 11:33:54,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2300 [2022-11-20 11:33:54,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:33:54,247 INFO L195 NwaCegarLoop]: trace histogram [383, 383, 383, 383, 382, 382, 1, 1, 1] [2022-11-20 11:33:54,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:33:54,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-20 11:33:54,449 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-20 11:33:54,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:33:54,450 INFO L85 PathProgramCache]: Analyzing trace with hash 999862413, now seen corresponding path program 8 times [2022-11-20 11:33:54,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:33:54,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715451743] [2022-11-20 11:33:54,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:33:54,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:33:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:18,794 INFO L134 CoverageAnalysis]: Checked inductivity of 438536 backedges. 0 proven. 438536 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:37:18,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:37:18,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715451743] [2022-11-20 11:37:18,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715451743] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:37:18,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740033467] [2022-11-20 11:37:18,795 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:37:18,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:37:18,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:37:18,803 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:37:18,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44dab48b-ab11-4922-ae19-5e97a7b8d6c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 11:37:19,655 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:37:19,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:37:19,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 3834 conjuncts, 384 conjunts are in the unsatisfiable core [2022-11-20 11:37:19,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:37:24,418 INFO L134 CoverageAnalysis]: Checked inductivity of 438536 backedges. 0 proven. 438536 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:37:24,418 INFO L328 TraceCheckSpWp]: Computing backward predicates...