./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength6.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/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_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength6.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/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 32bit --witnessprinter.graph.data.programhash 6ef2b56a2f4ebf2e6f7f4ededf8760f087ff726b08e36644d8dcb52a8d087cd1 --- 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 11:24:49,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:24:49,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:24:49,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:24:49,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:24:49,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:24:49,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:24:49,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:24:49,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:24:49,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:24:49,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:24:49,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:24:49,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:24:49,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:24:49,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:24:49,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:24:49,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:24:49,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:24:49,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:24:49,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:24:49,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:24:49,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:24:49,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:24:49,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:24:49,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:24:49,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:24:49,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:24:49,399 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:24:49,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:24:49,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:24:49,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:24:49,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:24:49,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:24:49,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:24:49,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:24:49,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:24:49,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:24:49,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:24:49,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:24:49,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:24:49,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:24:49,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 11:24:49,455 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:24:49,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:24:49,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:24:49,456 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:24:49,457 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:24:49,457 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:24:49,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:24:49,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:24:49,458 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:24:49,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:24:49,460 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:24:49,460 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:24:49,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:24:49,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:24:49,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:24:49,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:24:49,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:24:49,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:24:49,461 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:24:49,462 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:24:49,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:24:49,462 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:24:49,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:24:49,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:24:49,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:24:49,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:24:49,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:24:49,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:24:49,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:24:49,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:24:49,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:24:49,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:24:49,467 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:24:49,467 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:24:49,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:24:49,468 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_d45d32f7-ae36-4ea2-a25e-454443c330c5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ef2b56a2f4ebf2e6f7f4ededf8760f087ff726b08e36644d8dcb52a8d087cd1 [2022-11-20 11:24:49,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:24:49,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:24:49,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:24:49,787 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:24:49,788 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:24:49,789 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength6.c [2022-11-20 11:24:52,740 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:24:53,017 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:24:53,018 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength6.c [2022-11-20 11:24:53,022 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/data/38171c08c/78fd0097c98346ed8c0e795aeb74bc73/FLAGb769b61fb [2022-11-20 11:24:53,035 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/data/38171c08c/78fd0097c98346ed8c0e795aeb74bc73 [2022-11-20 11:24:53,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:24:53,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:24:53,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:24:53,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:24:53,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:24:53,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:24:53" (1/1) ... [2022-11-20 11:24:53,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b18a5bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:53, skipping insertion in model container [2022-11-20 11:24:53,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:24:53" (1/1) ... [2022-11-20 11:24:53,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:24:53,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:24:53,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:24:53,238 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:24:53,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:24:53,284 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:24:53,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:53 WrapperNode [2022-11-20 11:24:53,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:24:53,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:24:53,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:24:53,287 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:24:53,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:53" (1/1) ... [2022-11-20 11:24:53,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:53" (1/1) ... [2022-11-20 11:24:53,332 INFO L138 Inliner]: procedures = 8, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2022-11-20 11:24:53,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:24:53,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:24:53,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:24:53,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:24:53,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:53" (1/1) ... [2022-11-20 11:24:53,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:53" (1/1) ... [2022-11-20 11:24:53,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:53" (1/1) ... [2022-11-20 11:24:53,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:53" (1/1) ... [2022-11-20 11:24:53,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:53" (1/1) ... [2022-11-20 11:24:53,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:53" (1/1) ... [2022-11-20 11:24:53,377 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:53" (1/1) ... [2022-11-20 11:24:53,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:53" (1/1) ... [2022-11-20 11:24:53,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:24:53,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:24:53,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:24:53,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:24:53,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:53" (1/1) ... [2022-11-20 11:24:53,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:24:53,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:24:53,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:24:53,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:24:53,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:24:53,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:24:53,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:24:53,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:24:53,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:24:53,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:24:53,569 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:24:53,572 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:24:53,777 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:24:53,782 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:24:53,782 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 11:24:53,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:24:53 BoogieIcfgContainer [2022-11-20 11:24:53,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:24:53,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:24:53,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:24:53,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:24:53,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:24:53" (1/3) ... [2022-11-20 11:24:53,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3294dcc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:24:53, skipping insertion in model container [2022-11-20 11:24:53,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:53" (2/3) ... [2022-11-20 11:24:53,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3294dcc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:24:53, skipping insertion in model container [2022-11-20 11:24:53,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:24:53" (3/3) ... [2022-11-20 11:24:53,799 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength6.c [2022-11-20 11:24:53,835 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:24:53,836 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-20 11:24:53,902 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:24:53,908 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;@57276414, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:24:53,909 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-20 11:24:53,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:53,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 11:24:53,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:53,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 11:24:53,921 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:24:53,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:53,927 INFO L85 PathProgramCache]: Analyzing trace with hash 889666572, now seen corresponding path program 1 times [2022-11-20 11:24:53,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:53,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239533168] [2022-11-20 11:24:53,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:53,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:54,211 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 11:24:54,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:54,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239533168] [2022-11-20 11:24:54,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239533168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:54,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:54,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:24:54,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850286227] [2022-11-20 11:24:54,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:54,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:24:54,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:54,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:24:54,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:24:54,252 INFO L87 Difference]: Start difference. First operand has 29 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:54,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:54,322 INFO L93 Difference]: Finished difference Result 81 states and 101 transitions. [2022-11-20 11:24:54,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:24:54,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-20 11:24:54,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:54,345 INFO L225 Difference]: With dead ends: 81 [2022-11-20 11:24:54,345 INFO L226 Difference]: Without dead ends: 44 [2022-11-20 11:24:54,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:24:54,352 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 26 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:54,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 106 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:24:54,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-20 11:24:54,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 28. [2022-11-20 11:24:54,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:54,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-11-20 11:24:54,387 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 6 [2022-11-20 11:24:54,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:54,388 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-11-20 11:24:54,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:54,388 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2022-11-20 11:24:54,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 11:24:54,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:54,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:54,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:24:54,390 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:24:54,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:54,391 INFO L85 PathProgramCache]: Analyzing trace with hash 235011595, now seen corresponding path program 1 times [2022-11-20 11:24:54,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:54,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770780328] [2022-11-20 11:24:54,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:54,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:54,532 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 11:24:54,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:54,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770780328] [2022-11-20 11:24:54,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770780328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:54,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:54,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:24:54,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136149000] [2022-11-20 11:24:54,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:54,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:24:54,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:54,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:24:54,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:24:54,536 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:54,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:54,597 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2022-11-20 11:24:54,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:24:54,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-20 11:24:54,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:54,599 INFO L225 Difference]: With dead ends: 59 [2022-11-20 11:24:54,599 INFO L226 Difference]: Without dead ends: 51 [2022-11-20 11:24:54,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:24:54,601 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 17 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:54,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 51 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:24:54,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-20 11:24:54,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 34. [2022-11-20 11:24:54,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:54,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-11-20 11:24:54,608 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 8 [2022-11-20 11:24:54,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:54,608 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-11-20 11:24:54,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:54,609 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-11-20 11:24:54,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 11:24:54,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:54,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:54,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:24:54,610 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:24:54,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:54,611 INFO L85 PathProgramCache]: Analyzing trace with hash 269484748, now seen corresponding path program 1 times [2022-11-20 11:24:54,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:54,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952459069] [2022-11-20 11:24:54,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:54,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:54,746 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 11:24:54,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:54,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952459069] [2022-11-20 11:24:54,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952459069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:54,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:54,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:24:54,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297067999] [2022-11-20 11:24:54,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:54,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:54,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:54,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:54,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:54,749 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) 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 11:24:54,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:54,781 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2022-11-20 11:24:54,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:54,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) 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 11:24:54,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:54,783 INFO L225 Difference]: With dead ends: 65 [2022-11-20 11:24:54,783 INFO L226 Difference]: Without dead ends: 34 [2022-11-20 11:24:54,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 11:24:54,785 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 3 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:54,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 44 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:24:54,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-20 11:24:54,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-20 11:24:54,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 33 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:54,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2022-11-20 11:24:54,791 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 8 [2022-11-20 11:24:54,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:54,791 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2022-11-20 11:24:54,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) 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 11:24:54,791 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2022-11-20 11:24:54,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 11:24:54,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:54,792 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:54,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:24:54,793 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:24:54,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:54,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1479828344, now seen corresponding path program 1 times [2022-11-20 11:24:54,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:54,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845864629] [2022-11-20 11:24:54,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:54,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:54,977 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:54,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:54,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845864629] [2022-11-20 11:24:54,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845864629] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:24:54,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122192731] [2022-11-20 11:24:54,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:54,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:24:54,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:24:54,986 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:24:54,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:24:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:55,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:24:55,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:55,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:55,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:24:55,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:55,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122192731] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:24:55,251 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:24:55,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-20 11:24:55,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144224169] [2022-11-20 11:24:55,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:24:55,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:24:55,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:55,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:24:55,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:24:55,254 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:55,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:55,420 INFO L93 Difference]: Finished difference Result 113 states and 123 transitions. [2022-11-20 11:24:55,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:24:55,425 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-20 11:24:55,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:55,427 INFO L225 Difference]: With dead ends: 113 [2022-11-20 11:24:55,427 INFO L226 Difference]: Without dead ends: 112 [2022-11-20 11:24:55,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-11-20 11:24:55,430 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 88 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:55,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 139 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:24:55,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-11-20 11:24:55,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 45. [2022-11-20 11:24:55,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 44 states have internal predecessors, (52), 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 11:24:55,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2022-11-20 11:24:55,439 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 10 [2022-11-20 11:24:55,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:55,440 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2022-11-20 11:24:55,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:55,440 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2022-11-20 11:24:55,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 11:24:55,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:55,441 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-11-20 11:24:55,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:24:55,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:24:55,648 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:24:55,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:55,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1369961646, now seen corresponding path program 1 times [2022-11-20 11:24:55,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:55,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957293350] [2022-11-20 11:24:55,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:55,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:55,799 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:55,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:55,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957293350] [2022-11-20 11:24:55,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957293350] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:24:55,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236116243] [2022-11-20 11:24:55,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:55,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:24:55,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:24:55,802 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:24:55,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:24:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:55,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:24:55,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:55,901 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:55,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:24:55,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236116243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:55,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:24:55,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 11:24:55,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111386446] [2022-11-20 11:24:55,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:55,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:24:55,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:55,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:24:55,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:24:55,905 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 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 11:24:55,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:55,952 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2022-11-20 11:24:55,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:24:55,953 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 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 11:24:55,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:55,953 INFO L225 Difference]: With dead ends: 45 [2022-11-20 11:24:55,954 INFO L226 Difference]: Without dead ends: 44 [2022-11-20 11:24:55,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:24:55,955 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 41 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:55,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 55 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:24:55,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-20 11:24:55,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-20 11:24:55,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 43 states have internal predecessors, (49), 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 11:24:55,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2022-11-20 11:24:55,964 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 11 [2022-11-20 11:24:55,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:55,964 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2022-11-20 11:24:55,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 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 11:24:55,964 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2022-11-20 11:24:55,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 11:24:55,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:55,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:55,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:24:56,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:24:56,171 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:24:56,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:56,172 INFO L85 PathProgramCache]: Analyzing trace with hash -482462648, now seen corresponding path program 1 times [2022-11-20 11:24:56,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:56,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760610130] [2022-11-20 11:24:56,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:56,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:56,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:56,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 11:24:56,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:56,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760610130] [2022-11-20 11:24:56,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760610130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:56,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:56,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:24:56,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559107818] [2022-11-20 11:24:56,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:56,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:24:56,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:56,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:24:56,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:24:56,246 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:56,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:56,286 INFO L93 Difference]: Finished difference Result 71 states and 80 transitions. [2022-11-20 11:24:56,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:24:56,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-20 11:24:56,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:56,287 INFO L225 Difference]: With dead ends: 71 [2022-11-20 11:24:56,287 INFO L226 Difference]: Without dead ends: 69 [2022-11-20 11:24:56,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:24:56,289 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 8 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:56,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 48 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:24:56,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-20 11:24:56,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2022-11-20 11:24:56,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 67 states have internal predecessors, (78), 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 11:24:56,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 78 transitions. [2022-11-20 11:24:56,299 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 78 transitions. Word has length 12 [2022-11-20 11:24:56,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:56,299 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 78 transitions. [2022-11-20 11:24:56,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:56,300 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 78 transitions. [2022-11-20 11:24:56,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 11:24:56,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:56,301 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1] [2022-11-20 11:24:56,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:24:56,301 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:24:56,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:56,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1751714300, now seen corresponding path program 2 times [2022-11-20 11:24:56,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:56,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304731609] [2022-11-20 11:24:56,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:56,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:56,639 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:56,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:56,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304731609] [2022-11-20 11:24:56,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304731609] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:24:56,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542870708] [2022-11-20 11:24:56,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:24:56,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:24:56,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:24:56,647 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:24:56,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:24:56,728 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:24:56,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:24:56,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:24:56,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:56,865 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 11:24:56,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:24:56,992 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 11:24:56,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542870708] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:24:56,993 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:24:56,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-11-20 11:24:56,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617552780] [2022-11-20 11:24:56,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:24:56,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:24:56,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:56,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:24:56,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:24:56,995 INFO L87 Difference]: Start difference. First operand 68 states and 78 transitions. Second operand has 18 states, 17 states have (on average 2.235294117647059) internal successors, (38), 18 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:57,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:57,248 INFO L93 Difference]: Finished difference Result 210 states and 231 transitions. [2022-11-20 11:24:57,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:24:57,249 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.235294117647059) internal successors, (38), 18 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-20 11:24:57,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:57,250 INFO L225 Difference]: With dead ends: 210 [2022-11-20 11:24:57,251 INFO L226 Difference]: Without dead ends: 209 [2022-11-20 11:24:57,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-11-20 11:24:57,252 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 299 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:57,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 172 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:24:57,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-11-20 11:24:57,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 39. [2022-11-20 11:24:57,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.2) internal successors, (42), 38 states have internal predecessors, (42), 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 11:24:57,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2022-11-20 11:24:57,262 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 22 [2022-11-20 11:24:57,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:57,263 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2022-11-20 11:24:57,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.235294117647059) internal successors, (38), 18 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:57,263 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2022-11-20 11:24:57,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 11:24:57,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:57,264 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-20 11:24:57,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:24:57,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-20 11:24:57,470 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:24:57,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:57,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1281122176, now seen corresponding path program 1 times [2022-11-20 11:24:57,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:57,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064303699] [2022-11-20 11:24:57,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:57,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:57,554 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:24:57,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:57,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064303699] [2022-11-20 11:24:57,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064303699] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:24:57,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183083346] [2022-11-20 11:24:57,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:57,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:24:57,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:24:57,557 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:24:57,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 11:24:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:57,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:24:57,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:57,690 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 11:24:57,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:24:57,734 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 11:24:57,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183083346] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:24:57,735 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:24:57,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-11-20 11:24:57,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935360468] [2022-11-20 11:24:57,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:24:57,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:24:57,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:57,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:24:57,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:24:57,737 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 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 11:24:58,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:58,013 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2022-11-20 11:24:58,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-20 11:24:58,014 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 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 23 [2022-11-20 11:24:58,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:58,014 INFO L225 Difference]: With dead ends: 107 [2022-11-20 11:24:58,014 INFO L226 Difference]: Without dead ends: 76 [2022-11-20 11:24:58,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2022-11-20 11:24:58,016 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 82 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:58,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 52 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:24:58,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-20 11:24:58,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2022-11-20 11:24:58,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 69 states have (on average 1.1304347826086956) internal successors, (78), 72 states have internal predecessors, (78), 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 11:24:58,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2022-11-20 11:24:58,029 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 23 [2022-11-20 11:24:58,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:58,029 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2022-11-20 11:24:58,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 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 11:24:58,030 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2022-11-20 11:24:58,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-20 11:24:58,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:58,031 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:58,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:24:58,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-20 11:24:58,236 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:24:58,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:58,236 INFO L85 PathProgramCache]: Analyzing trace with hash -363414695, now seen corresponding path program 1 times [2022-11-20 11:24:58,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:58,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411825247] [2022-11-20 11:24:58,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:58,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:58,321 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 11:24:58,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:58,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411825247] [2022-11-20 11:24:58,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411825247] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:24:58,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652601473] [2022-11-20 11:24:58,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:58,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:24:58,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:24:58,323 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:24:58,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 11:24:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:58,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 11:24:58,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:58,522 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:24:58,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:24:58,685 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 11:24:58,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652601473] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:24:58,685 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:24:58,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 20 [2022-11-20 11:24:58,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609737845] [2022-11-20 11:24:58,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:24:58,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-20 11:24:58,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:58,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-20 11:24:58,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2022-11-20 11:24:58,687 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand has 20 states, 20 states have (on average 3.25) internal successors, (65), 20 states have internal predecessors, (65), 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 11:24:59,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:59,139 INFO L93 Difference]: Finished difference Result 184 states and 206 transitions. [2022-11-20 11:24:59,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-20 11:24:59,140 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.25) internal successors, (65), 20 states have internal predecessors, (65), 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 32 [2022-11-20 11:24:59,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:59,141 INFO L225 Difference]: With dead ends: 184 [2022-11-20 11:24:59,141 INFO L226 Difference]: Without dead ends: 127 [2022-11-20 11:24:59,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=392, Invalid=1248, Unknown=0, NotChecked=0, Total=1640 [2022-11-20 11:24:59,145 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 134 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:59,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 106 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:24:59,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-20 11:24:59,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2022-11-20 11:24:59,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 121 states have (on average 1.0743801652892562) internal successors, (130), 124 states have internal predecessors, (130), 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 11:24:59,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 130 transitions. [2022-11-20 11:24:59,177 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 130 transitions. Word has length 32 [2022-11-20 11:24:59,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:59,178 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 130 transitions. [2022-11-20 11:24:59,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.25) internal successors, (65), 20 states have internal predecessors, (65), 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 11:24:59,178 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 130 transitions. [2022-11-20 11:24:59,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-20 11:24:59,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:59,186 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:59,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:24:59,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:24:59,392 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:24:59,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:59,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1063103538, now seen corresponding path program 1 times [2022-11-20 11:24:59,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:59,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894862314] [2022-11-20 11:24:59,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:59,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:59,918 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 1 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 11:24:59,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:59,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894862314] [2022-11-20 11:24:59,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894862314] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:24:59,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680618049] [2022-11-20 11:24:59,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:59,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:24:59,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:24:59,923 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:24:59,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 11:25:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:00,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 11:25:00,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:00,488 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 1 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 11:25:00,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:25:01,048 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 1 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 11:25:01,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680618049] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:25:01,048 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:25:01,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 47 [2022-11-20 11:25:01,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128551828] [2022-11-20 11:25:01,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:25:01,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-11-20 11:25:01,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:25:01,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-11-20 11:25:01,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=1634, Unknown=0, NotChecked=0, Total=2162 [2022-11-20 11:25:01,051 INFO L87 Difference]: Start difference. First operand 125 states and 130 transitions. Second operand has 47 states, 47 states have (on average 2.234042553191489) internal successors, (105), 47 states have internal predecessors, (105), 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 11:25:01,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:25:01,531 INFO L93 Difference]: Finished difference Result 314 states and 347 transitions. [2022-11-20 11:25:01,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-20 11:25:01,532 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.234042553191489) internal successors, (105), 47 states have internal predecessors, (105), 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 49 [2022-11-20 11:25:01,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:25:01,533 INFO L225 Difference]: With dead ends: 314 [2022-11-20 11:25:01,533 INFO L226 Difference]: Without dead ends: 221 [2022-11-20 11:25:01,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=943, Invalid=2717, Unknown=0, NotChecked=0, Total=3660 [2022-11-20 11:25:01,536 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 107 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:25:01,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 160 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:25:01,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-11-20 11:25:01,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2022-11-20 11:25:01,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 217 states have (on average 1.0414746543778801) internal successors, (226), 220 states have internal predecessors, (226), 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 11:25:01,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 226 transitions. [2022-11-20 11:25:01,564 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 226 transitions. Word has length 49 [2022-11-20 11:25:01,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:25:01,564 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 226 transitions. [2022-11-20 11:25:01,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.234042553191489) internal successors, (105), 47 states have internal predecessors, (105), 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 11:25:01,565 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 226 transitions. [2022-11-20 11:25:01,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-20 11:25:01,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:25:01,566 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:25:01,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:25:01,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 11:25:01,771 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:25:01,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:01,772 INFO L85 PathProgramCache]: Analyzing trace with hash -792116142, now seen corresponding path program 2 times [2022-11-20 11:25:01,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:25:01,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875789454] [2022-11-20 11:25:01,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:01,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:25:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:02,920 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 1 proven. 435 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 11:25:02,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:25:02,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875789454] [2022-11-20 11:25:02,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875789454] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:25:02,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322651626] [2022-11-20 11:25:02,921 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:25:02,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:25:02,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:25:02,923 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:25:02,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 11:25:03,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:25:03,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:25:03,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-20 11:25:03,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:04,451 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 1 proven. 435 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 11:25:04,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:25:06,393 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 1 proven. 435 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 11:25:06,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322651626] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:25:06,393 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:25:06,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 95 [2022-11-20 11:25:06,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495376536] [2022-11-20 11:25:06,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:25:06,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-11-20 11:25:06,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:25:06,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-11-20 11:25:06,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=6850, Unknown=0, NotChecked=0, Total=8930 [2022-11-20 11:25:06,399 INFO L87 Difference]: Start difference. First operand 221 states and 226 transitions. Second operand has 95 states, 95 states have (on average 2.1157894736842104) internal successors, (201), 95 states have internal predecessors, (201), 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 11:25:07,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:25:07,905 INFO L93 Difference]: Finished difference Result 570 states and 627 transitions. [2022-11-20 11:25:07,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-20 11:25:07,906 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 2.1157894736842104) internal successors, (201), 95 states have internal predecessors, (201), 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 81 [2022-11-20 11:25:07,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:25:07,908 INFO L225 Difference]: With dead ends: 570 [2022-11-20 11:25:07,908 INFO L226 Difference]: Without dead ends: 413 [2022-11-20 11:25:07,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3091 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=3807, Invalid=11693, Unknown=0, NotChecked=0, Total=15500 [2022-11-20 11:25:07,915 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 297 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:25:07,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 144 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:25:07,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-11-20 11:25:07,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2022-11-20 11:25:07,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 409 states have (on average 1.02200488997555) internal successors, (418), 412 states have internal predecessors, (418), 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 11:25:07,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 418 transitions. [2022-11-20 11:25:07,950 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 418 transitions. Word has length 81 [2022-11-20 11:25:07,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:25:07,950 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 418 transitions. [2022-11-20 11:25:07,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 2.1157894736842104) internal successors, (201), 95 states have internal predecessors, (201), 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 11:25:07,951 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 418 transitions. [2022-11-20 11:25:07,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-20 11:25:07,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:25:07,955 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:25:07,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:25:08,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-20 11:25:08,161 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:25:08,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:08,162 INFO L85 PathProgramCache]: Analyzing trace with hash -379128686, now seen corresponding path program 3 times [2022-11-20 11:25:08,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:25:08,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289533537] [2022-11-20 11:25:08,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:08,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:25:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:11,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 1 proven. 1891 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 11:25:11,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:25:11,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289533537] [2022-11-20 11:25:11,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289533537] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:25:11,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563261430] [2022-11-20 11:25:11,882 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 11:25:11,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:25:11,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:25:11,884 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:25:11,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 11:25:11,980 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-20 11:25:11,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:25:11,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:25:11,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:12,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1892 trivial. 0 not checked. [2022-11-20 11:25:12,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:25:12,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563261430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:25:12,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:25:12,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [65] total 67 [2022-11-20 11:25:12,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582180876] [2022-11-20 11:25:12,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:25:12,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:25:12,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:25:12,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:25:12,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1092, Invalid=3330, Unknown=0, NotChecked=0, Total=4422 [2022-11-20 11:25:12,089 INFO L87 Difference]: Start difference. First operand 413 states and 418 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 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 11:25:12,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:25:12,180 INFO L93 Difference]: Finished difference Result 413 states and 418 transitions. [2022-11-20 11:25:12,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:25:12,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 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 145 [2022-11-20 11:25:12,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:25:12,184 INFO L225 Difference]: With dead ends: 413 [2022-11-20 11:25:12,184 INFO L226 Difference]: Without dead ends: 412 [2022-11-20 11:25:12,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1052 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1096, Invalid=3460, Unknown=0, NotChecked=0, Total=4556 [2022-11-20 11:25:12,186 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:25:12,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 28 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:25:12,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-11-20 11:25:12,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2022-11-20 11:25:12,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 409 states have (on average 1.019559902200489) internal successors, (417), 411 states have internal predecessors, (417), 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 11:25:12,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 417 transitions. [2022-11-20 11:25:12,225 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 417 transitions. Word has length 145 [2022-11-20 11:25:12,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:25:12,226 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 417 transitions. [2022-11-20 11:25:12,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 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 11:25:12,227 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 417 transitions. [2022-11-20 11:25:12,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-20 11:25:12,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:25:12,232 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:25:12,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:25:12,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-20 11:25:12,438 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:25:12,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:12,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1023089275, now seen corresponding path program 2 times [2022-11-20 11:25:12,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:25:12,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936359357] [2022-11-20 11:25:12,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:12,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:25:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:15,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1905 backedges. 1 proven. 1891 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-20 11:25:15,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:25:15,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936359357] [2022-11-20 11:25:15,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936359357] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:25:15,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058129954] [2022-11-20 11:25:15,827 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:25:15,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:25:15,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:25:15,828 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:25:15,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 11:25:15,978 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:25:15,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:25:15,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 66 conjunts are in the unsatisfiable core [2022-11-20 11:25:15,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:20,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1905 backedges. 1 proven. 1891 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-20 11:25:20,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:25:26,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1905 backedges. 1 proven. 1891 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-20 11:25:26,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058129954] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:25:26,018 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:25:26,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 191 [2022-11-20 11:25:26,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204806860] [2022-11-20 11:25:26,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:25:26,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2022-11-20 11:25:26,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:25:26,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2022-11-20 11:25:26,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6334, Invalid=29956, Unknown=0, NotChecked=0, Total=36290 [2022-11-20 11:25:26,028 INFO L87 Difference]: Start difference. First operand 412 states and 417 transitions. Second operand has 191 states, 191 states have (on average 2.0575916230366493) internal successors, (393), 191 states have internal predecessors, (393), 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 11:25:27,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:25:27,890 INFO L93 Difference]: Finished difference Result 717 states and 729 transitions. [2022-11-20 11:25:27,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-11-20 11:25:27,891 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 191 states have (on average 2.0575916230366493) internal successors, (393), 191 states have internal predecessors, (393), 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 149 [2022-11-20 11:25:27,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:25:27,893 INFO L225 Difference]: With dead ends: 717 [2022-11-20 11:25:27,893 INFO L226 Difference]: Without dead ends: 433 [2022-11-20 11:25:27,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14727 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=9930, Invalid=39132, Unknown=0, NotChecked=0, Total=49062 [2022-11-20 11:25:27,899 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 452 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:25:27,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 184 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:25:27,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-11-20 11:25:27,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 424. [2022-11-20 11:25:27,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 421 states have (on average 1.0190023752969122) internal successors, (429), 423 states have internal predecessors, (429), 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 11:25:27,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 429 transitions. [2022-11-20 11:25:27,932 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 429 transitions. Word has length 149 [2022-11-20 11:25:27,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:25:27,933 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 429 transitions. [2022-11-20 11:25:27,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 191 states have (on average 2.0575916230366493) internal successors, (393), 191 states have internal predecessors, (393), 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 11:25:27,933 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 429 transitions. [2022-11-20 11:25:27,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-20 11:25:27,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:25:27,935 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:25:27,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:25:28,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-20 11:25:28,138 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:25:28,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:28,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1695412863, now seen corresponding path program 3 times [2022-11-20 11:25:28,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:25:28,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018397577] [2022-11-20 11:25:28,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:28,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:25:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:28,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2030 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 2017 trivial. 0 not checked. [2022-11-20 11:25:28,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:25:28,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018397577] [2022-11-20 11:25:28,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018397577] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:25:28,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116894584] [2022-11-20 11:25:28,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 11:25:28,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:25:28,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:25:28,352 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:25:28,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 11:25:28,452 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-20 11:25:28,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:25:28,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:25:28,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:28,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2030 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2021 trivial. 0 not checked. [2022-11-20 11:25:28,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:25:28,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116894584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:25:28,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:25:28,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2022-11-20 11:25:28,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163407971] [2022-11-20 11:25:28,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:25:28,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:25:28,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:25:28,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:25:28,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:25:28,518 INFO L87 Difference]: Start difference. First operand 424 states and 429 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 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 11:25:28,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:25:28,593 INFO L93 Difference]: Finished difference Result 424 states and 429 transitions. [2022-11-20 11:25:28,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:25:28,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-11-20 11:25:28,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:25:28,596 INFO L225 Difference]: With dead ends: 424 [2022-11-20 11:25:28,596 INFO L226 Difference]: Without dead ends: 408 [2022-11-20 11:25:28,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:25:28,597 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:25:28,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 49 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:25:28,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-11-20 11:25:28,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 408. [2022-11-20 11:25:28,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 406 states have (on average 1.0123152709359606) internal successors, (411), 407 states have internal predecessors, (411), 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 11:25:28,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 411 transitions. [2022-11-20 11:25:28,631 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 411 transitions. Word has length 153 [2022-11-20 11:25:28,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:25:28,632 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 411 transitions. [2022-11-20 11:25:28,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 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 11:25:28,632 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 411 transitions. [2022-11-20 11:25:28,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-20 11:25:28,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:25:28,636 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 64, 64, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-20 11:25:28,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:25:28,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-20 11:25:28,841 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:25:28,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:28,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1189383870, now seen corresponding path program 1 times [2022-11-20 11:25:28,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:25:28,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54368412] [2022-11-20 11:25:28,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:28,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:25:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:29,222 INFO L134 CoverageAnalysis]: Checked inductivity of 8199 backedges. 0 proven. 4167 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-20 11:25:29,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:25:29,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54368412] [2022-11-20 11:25:29,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54368412] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:25:29,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192156754] [2022-11-20 11:25:29,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:29,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:25:29,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:25:29,227 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:25:29,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-20 11:25:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:29,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:25:29,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:29,651 INFO L134 CoverageAnalysis]: Checked inductivity of 8199 backedges. 4167 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-20 11:25:29,651 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:25:29,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192156754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:25:29,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:25:29,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-20 11:25:29,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129460981] [2022-11-20 11:25:29,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:25:29,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:25:29,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:25:29,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:25:29,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:25:29,653 INFO L87 Difference]: Start difference. First operand 408 states and 411 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:29,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:25:29,694 INFO L93 Difference]: Finished difference Result 408 states and 411 transitions. [2022-11-20 11:25:29,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:25:29,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 272 [2022-11-20 11:25:29,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:25:29,696 INFO L225 Difference]: With dead ends: 408 [2022-11-20 11:25:29,696 INFO L226 Difference]: Without dead ends: 407 [2022-11-20 11:25:29,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:25:29,697 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:25:29,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 16 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:25:29,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-11-20 11:25:29,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2022-11-20 11:25:29,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.0098522167487685) internal successors, (410), 406 states have internal predecessors, (410), 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 11:25:29,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 410 transitions. [2022-11-20 11:25:29,727 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 410 transitions. Word has length 272 [2022-11-20 11:25:29,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:25:29,728 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 410 transitions. [2022-11-20 11:25:29,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:29,728 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 410 transitions. [2022-11-20 11:25:29,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2022-11-20 11:25:29,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:25:29,735 INFO L195 NwaCegarLoop]: trace histogram [96, 96, 96, 96, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2022-11-20 11:25:29,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:25:29,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-20 11:25:29,942 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-20 11:25:29,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:29,943 INFO L85 PathProgramCache]: Analyzing trace with hash -672702516, now seen corresponding path program 2 times [2022-11-20 11:25:29,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:25:29,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028567468] [2022-11-20 11:25:29,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:29,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:25:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:30,493 INFO L134 CoverageAnalysis]: Checked inductivity of 18547 backedges. 0 proven. 12499 refuted. 0 times theorem prover too weak. 6048 trivial. 0 not checked. [2022-11-20 11:25:30,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:25:30,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028567468] [2022-11-20 11:25:30,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028567468] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:25:30,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677526611] [2022-11-20 11:25:30,494 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:25:30,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:25:30,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:25:30,495 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:25:30,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-20 11:25:30,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:25:30,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:25:30,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 11:25:30,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:31,355 INFO L134 CoverageAnalysis]: Checked inductivity of 18547 backedges. 0 proven. 12499 refuted. 0 times theorem prover too weak. 6048 trivial. 0 not checked. [2022-11-20 11:25:31,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:25:31,977 INFO L134 CoverageAnalysis]: Checked inductivity of 18547 backedges. 0 proven. 12499 refuted. 0 times theorem prover too weak. 6048 trivial. 0 not checked. [2022-11-20 11:25:31,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677526611] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:25:31,977 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:25:31,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-11-20 11:25:31,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707310676] [2022-11-20 11:25:31,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:25:31,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 11:25:31,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:25:31,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 11:25:31,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:25:31,980 INFO L87 Difference]: Start difference. First operand 407 states and 410 transitions. Second operand has 16 states, 15 states have (on average 5.266666666666667) internal successors, (79), 16 states have internal predecessors, (79), 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 11:25:32,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:25:32,082 INFO L93 Difference]: Finished difference Result 544 states and 549 transitions. [2022-11-20 11:25:32,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:25:32,084 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.266666666666667) internal successors, (79), 16 states have internal predecessors, (79), 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 406 [2022-11-20 11:25:32,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:25:32,085 INFO L225 Difference]: With dead ends: 544 [2022-11-20 11:25:32,085 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 11:25:32,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 821 GetRequests, 803 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2022-11-20 11:25:32,086 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 20 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:25:32,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 56 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:25:32,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 11:25:32,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 11:25:32,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:32,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 11:25:32,089 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 406 [2022-11-20 11:25:32,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:25:32,089 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:25:32,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.266666666666667) internal successors, (79), 16 states have internal predecessors, (79), 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 11:25:32,089 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 11:25:32,089 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 11:25:32,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-20 11:25:32,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-20 11:25:32,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-20 11:25:32,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-20 11:25:32,094 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-20 11:25:32,094 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-20 11:25:32,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:25:32,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-20 11:25:32,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 11:25:37,168 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-20 11:25:37,168 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2022-11-20 11:25:37,168 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2022-11-20 11:25:37,168 INFO L899 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2022-11-20 11:25:37,169 INFO L899 garLoopResultBuilder]: For program point L15-4(line 15) no Hoare annotation was computed. [2022-11-20 11:25:37,169 INFO L895 garLoopResultBuilder]: At program point L15-5(lines 15 17) the Hoare annotation is: (let ((.cse0 (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648))) (.cse1 (< |ULTIMATE.start_main_~i~1#1| 2147483645))) (or (and (< |ULTIMATE.start_foo_~i~0#1| 2147483647) .cse0 (<= |ULTIMATE.start_foo_~size#1| 32) (<= 1 |ULTIMATE.start_foo_~i~0#1|) .cse1) (and (= 32 |ULTIMATE.start_foo_~size#1|) .cse0 (= |ULTIMATE.start_foo_~i~0#1| 0) .cse1))) [2022-11-20 11:25:37,169 INFO L899 garLoopResultBuilder]: For program point L15-6(lines 15 17) no Hoare annotation was computed. [2022-11-20 11:25:37,169 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 11:25:37,169 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2022-11-20 11:25:37,169 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 11:25:37,169 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-20 11:25:37,169 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 11:25:37,170 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2022-11-20 11:25:37,170 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 11:25:37,170 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-20 11:25:37,170 INFO L899 garLoopResultBuilder]: For program point L29-2(lines 29 33) no Hoare annotation was computed. [2022-11-20 11:25:37,170 INFO L899 garLoopResultBuilder]: For program point L29-3(line 29) no Hoare annotation was computed. [2022-11-20 11:25:37,170 INFO L899 garLoopResultBuilder]: For program point L29-4(line 29) no Hoare annotation was computed. [2022-11-20 11:25:37,170 INFO L895 garLoopResultBuilder]: At program point L29-5(lines 29 33) the Hoare annotation is: (and (< |ULTIMATE.start_foo_~i~0#1| 2147483647) (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648)) (<= |ULTIMATE.start_foo_~size#1| 32) (<= 1 |ULTIMATE.start_foo_~i~0#1|)) [2022-11-20 11:25:37,170 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 28) no Hoare annotation was computed. [2022-11-20 11:25:37,170 INFO L899 garLoopResultBuilder]: For program point L29-6(lines 29 33) no Hoare annotation was computed. [2022-11-20 11:25:37,170 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2022-11-20 11:25:37,170 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2022-11-20 11:25:37,171 INFO L895 garLoopResultBuilder]: At program point L25-5(lines 25 28) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~1#1| 0) (and (< |ULTIMATE.start_foo_~i~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648)) (<= |ULTIMATE.start_foo_~size#1| 32) (<= 1 |ULTIMATE.start_foo_~i~0#1|) (< |ULTIMATE.start_main_~i~1#1| 2147483646))) [2022-11-20 11:25:37,171 INFO L899 garLoopResultBuilder]: For program point L25-6(lines 25 28) no Hoare annotation was computed. [2022-11-20 11:25:37,171 INFO L902 garLoopResultBuilder]: At program point L34(lines 21 35) the Hoare annotation is: true [2022-11-20 11:25:37,171 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-20 11:25:37,171 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 32) no Hoare annotation was computed. [2022-11-20 11:25:37,171 INFO L895 garLoopResultBuilder]: At program point L18(lines 12 19) the Hoare annotation is: (and (< |ULTIMATE.start_foo_~i~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648)) (<= |ULTIMATE.start_foo_~size#1| 32) (<= 1 |ULTIMATE.start_foo_~i~0#1|) (< |ULTIMATE.start_main_~i~1#1| 2147483645)) [2022-11-20 11:25:37,175 INFO L444 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-20 11:25:37,177 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:25:37,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:25:37 BoogieIcfgContainer [2022-11-20 11:25:37,196 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:25:37,197 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:25:37,201 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:25:37,201 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:25:37,202 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:24:53" (3/4) ... [2022-11-20 11:25:37,207 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:25:37,216 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-20 11:25:37,217 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 11:25:37,217 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:25:37,217 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:25:37,251 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:25:37,251 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:25:37,252 INFO L158 Benchmark]: Toolchain (without parser) took 44212.33ms. Allocated memory was 190.8MB in the beginning and 333.4MB in the end (delta: 142.6MB). Free memory was 160.7MB in the beginning and 151.4MB in the end (delta: 9.3MB). Peak memory consumption was 153.5MB. Max. memory is 16.1GB. [2022-11-20 11:25:37,252 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 138.4MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:25:37,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.56ms. Allocated memory is still 190.8MB. Free memory was 160.7MB in the beginning and 151.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 11:25:37,253 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.89ms. Allocated memory is still 190.8MB. Free memory was 150.8MB in the beginning and 149.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:25:37,253 INFO L158 Benchmark]: Boogie Preprocessor took 53.44ms. Allocated memory is still 190.8MB. Free memory was 149.7MB in the beginning and 148.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:25:37,253 INFO L158 Benchmark]: RCFGBuilder took 397.91ms. Allocated memory is still 190.8MB. Free memory was 148.1MB in the beginning and 137.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:25:37,254 INFO L158 Benchmark]: TraceAbstraction took 43409.48ms. Allocated memory was 190.8MB in the beginning and 333.4MB in the end (delta: 142.6MB). Free memory was 136.1MB in the beginning and 153.4MB in the end (delta: -17.4MB). Peak memory consumption was 181.0MB. Max. memory is 16.1GB. [2022-11-20 11:25:37,254 INFO L158 Benchmark]: Witness Printer took 54.24ms. Allocated memory is still 333.4MB. Free memory was 153.4MB in the beginning and 151.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:25:37,256 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 138.4MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.56ms. Allocated memory is still 190.8MB. Free memory was 160.7MB in the beginning and 151.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.89ms. Allocated memory is still 190.8MB. Free memory was 150.8MB in the beginning and 149.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.44ms. Allocated memory is still 190.8MB. Free memory was 149.7MB in the beginning and 148.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 397.91ms. Allocated memory is still 190.8MB. Free memory was 148.1MB in the beginning and 137.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 43409.48ms. Allocated memory was 190.8MB in the beginning and 333.4MB in the end (delta: 142.6MB). Free memory was 136.1MB in the beginning and 153.4MB in the end (delta: -17.4MB). Peak memory consumption was 181.0MB. Max. memory is 16.1GB. * Witness Printer took 54.24ms. Allocated memory is still 333.4MB. Free memory was 153.4MB in the beginning and 151.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 43.3s, OverallIterations: 16, TraceHistogramMax: 96, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1611 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1611 mSDsluCounter, 1410 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1122 mSDsCounter, 112 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1297 IncrementalHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 112 mSolverCounterUnsat, 288 mSDtfsCounter, 1297 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2492 GetRequests, 1861 SyntacticMatches, 0 SemanticMatches, 631 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20273 ImplicationChecksByTransitivity, 21.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=424occurred in iteration=13, InterpolantAutomatonStates: 290, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 285 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 151 NumberOfFragments, 93 HoareAnnotationTreeSize, 5 FomulaSimplifications, 1337 FormulaSimplificationTreeSizeReduction, 3.5s HoareSimplificationTime, 5 FomulaSimplificationsInter, 11555 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 27.4s InterpolantComputationTime, 2740 NumberOfCodeBlocks, 2467 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 3476 ConstructedInterpolants, 0 QuantifiedInterpolants, 11704 SizeOfPredicates, 86 NumberOfNonLiveVariables, 3279 ConjunctsInSsa, 170 ConjunctsInUnsatCore, 36 InterpolantComputations, 8 PerfectInterpolantSequences, 36518/87450 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: (((i < 2147483647 && 0 <= i + 2147483648) && size <= 32) && 1 <= i) && i < 2147483645 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: ((((i < 2147483647 && 0 <= i + 2147483648) && size <= 32) && 1 <= i) && i < 2147483645) || (((32 == size && 0 <= i + 2147483648) && i == 0) && i < 2147483645) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: i == 0 || ((((i < 2147483647 && 0 <= i + 2147483648) && size <= 32) && 1 <= i) && i < 2147483646) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((i < 2147483647 && i <= 2147483647) && 0 <= i + 2147483648) && size <= 32) && 1 <= i RESULT: Ultimate proved your program to be correct! [2022-11-20 11:25:37,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d45d32f7-ae36-4ea2-a25e-454443c330c5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE