./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 1a17e1f9edfd37607fb472869452b377d4af1281c9808dec0371b4f943952037 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:56:08,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:56:08,410 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:56:08,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:56:08,420 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:56:08,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:56:08,462 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:56:08,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:56:08,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:56:08,469 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:56:08,471 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:56:08,471 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:56:08,472 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:56:08,474 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:56:08,475 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:56:08,475 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:56:08,476 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:56:08,476 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:56:08,477 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:56:08,477 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:56:08,478 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:56:08,478 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:56:08,479 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:56:08,479 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:56:08,480 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:56:08,480 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:56:08,481 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:56:08,482 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:56:08,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:56:08,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:56:08,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:56:08,484 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:56:08,485 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:56:08,485 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:56:08,485 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:56:08,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:56:08,486 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:56:08,486 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:56:08,486 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:56:08,487 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:56:08,487 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:56:08,487 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a17e1f9edfd37607fb472869452b377d4af1281c9808dec0371b4f943952037 [2023-11-19 07:56:08,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:56:08,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:56:08,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:56:08,824 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:56:08,824 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:56:08,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-1.i [2023-11-19 07:56:11,916 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:56:12,296 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:56:12,297 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-1.i [2023-11-19 07:56:12,329 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/data/3ea9b252f/8f6137b265d543aab6e7ea34b09733e6/FLAG71c808c21 [2023-11-19 07:56:12,348 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/data/3ea9b252f/8f6137b265d543aab6e7ea34b09733e6 [2023-11-19 07:56:12,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:56:12,357 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:56:12,361 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:12,361 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:56:12,366 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:56:12,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:12" (1/1) ... [2023-11-19 07:56:12,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c68912e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:12, skipping insertion in model container [2023-11-19 07:56:12,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:12" (1/1) ... [2023-11-19 07:56:12,458 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:56:13,155 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:13,170 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:56:13,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:13,441 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:56:13,449 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:56:13,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:13 WrapperNode [2023-11-19 07:56:13,450 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:13,451 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:13,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:56:13,452 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:56:13,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:13" (1/1) ... [2023-11-19 07:56:13,531 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:13" (1/1) ... [2023-11-19 07:56:13,617 INFO L138 Inliner]: procedures = 177, calls = 390, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1905 [2023-11-19 07:56:13,617 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:13,618 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:56:13,618 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:56:13,619 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:56:13,628 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:13" (1/1) ... [2023-11-19 07:56:13,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:13" (1/1) ... [2023-11-19 07:56:13,640 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:13" (1/1) ... [2023-11-19 07:56:13,640 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:13" (1/1) ... [2023-11-19 07:56:13,765 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:13" (1/1) ... [2023-11-19 07:56:13,798 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:13" (1/1) ... [2023-11-19 07:56:13,808 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:13" (1/1) ... [2023-11-19 07:56:13,816 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:13" (1/1) ... [2023-11-19 07:56:13,831 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:56:13,832 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:56:13,832 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:56:13,833 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:56:13,834 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:13" (1/1) ... [2023-11-19 07:56:13,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:56:13,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:13,867 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:13,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:56:13,918 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-19 07:56:13,918 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-19 07:56:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:56:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:56:13,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:56:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:56:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:56:13,920 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:56:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:56:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:56:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:56:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:56:13,921 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 07:56:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:56:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:56:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:56:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:56:13,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:56:14,210 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:56:14,212 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:56:16,311 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:56:16,330 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:56:16,336 INFO L302 CfgBuilder]: Removed 83 assume(true) statements. [2023-11-19 07:56:16,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:16 BoogieIcfgContainer [2023-11-19 07:56:16,352 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:56:16,355 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:56:16,355 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:56:16,358 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:56:16,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:56:12" (1/3) ... [2023-11-19 07:56:16,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6affb2bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:16, skipping insertion in model container [2023-11-19 07:56:16,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:13" (2/3) ... [2023-11-19 07:56:16,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6affb2bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:16, skipping insertion in model container [2023-11-19 07:56:16,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:16" (3/3) ... [2023-11-19 07:56:16,364 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test5-1.i [2023-11-19 07:56:16,389 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:56:16,389 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-19 07:56:16,469 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:56:16,476 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=LoopHeads, 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;@cd6aabc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:56:16,477 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-19 07:56:16,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 526 states, 499 states have (on average 1.7094188376753507) internal successors, (853), 516 states have internal predecessors, (853), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:56:16,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:56:16,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:16,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:56:16,492 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:16,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:16,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1377095142, now seen corresponding path program 1 times [2023-11-19 07:56:16,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:16,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011297126] [2023-11-19 07:56:16,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:16,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:16,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:16,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:16,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011297126] [2023-11-19 07:56:16,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011297126] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:16,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:16,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:56:16,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045388952] [2023-11-19 07:56:16,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:16,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:56:16,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:16,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:56:16,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:56:16,765 INFO L87 Difference]: Start difference. First operand has 526 states, 499 states have (on average 1.7094188376753507) internal successors, (853), 516 states have internal predecessors, (853), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2023-11-19 07:56:16,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:16,875 INFO L93 Difference]: Finished difference Result 1046 states and 1760 transitions. [2023-11-19 07:56:16,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:56:16,877 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2023-11-19 07:56:16,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:16,894 INFO L225 Difference]: With dead ends: 1046 [2023-11-19 07:56:16,894 INFO L226 Difference]: Without dead ends: 515 [2023-11-19 07:56:16,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:56:16,907 INFO L413 NwaCegarLoop]: 782 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:16,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:56:16,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-11-19 07:56:17,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2023-11-19 07:56:17,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 494 states have (on average 1.5222672064777327) internal successors, (752), 506 states have internal predecessors, (752), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:56:17,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 774 transitions. [2023-11-19 07:56:17,037 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 774 transitions. Word has length 6 [2023-11-19 07:56:17,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:17,037 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 774 transitions. [2023-11-19 07:56:17,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2023-11-19 07:56:17,039 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 774 transitions. [2023-11-19 07:56:17,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:56:17,039 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:17,039 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:17,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:56:17,041 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:17,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:17,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1572045411, now seen corresponding path program 1 times [2023-11-19 07:56:17,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:17,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591958849] [2023-11-19 07:56:17,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:17,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:17,093 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:17,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1992543576] [2023-11-19 07:56:17,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:17,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:17,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:17,101 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:17,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:56:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:17,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:56:17,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:17,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:17,354 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:17,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:17,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591958849] [2023-11-19 07:56:17,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:17,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992543576] [2023-11-19 07:56:17,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992543576] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:17,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:17,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:56:17,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867880226] [2023-11-19 07:56:17,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:17,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:17,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:17,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:17,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:17,365 INFO L87 Difference]: Start difference. First operand 515 states and 774 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:17,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:17,486 INFO L93 Difference]: Finished difference Result 1179 states and 1784 transitions. [2023-11-19 07:56:17,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:17,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 07:56:17,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:17,499 INFO L225 Difference]: With dead ends: 1179 [2023-11-19 07:56:17,499 INFO L226 Difference]: Without dead ends: 1017 [2023-11-19 07:56:17,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:17,503 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 738 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:17,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 1522 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:56:17,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2023-11-19 07:56:17,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 668. [2023-11-19 07:56:17,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 642 states have (on average 1.5327102803738317) internal successors, (984), 659 states have internal predecessors, (984), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:56:17,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1016 transitions. [2023-11-19 07:56:17,547 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1016 transitions. Word has length 7 [2023-11-19 07:56:17,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:17,548 INFO L495 AbstractCegarLoop]: Abstraction has 668 states and 1016 transitions. [2023-11-19 07:56:17,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:17,548 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1016 transitions. [2023-11-19 07:56:17,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:56:17,549 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:17,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:17,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:17,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:17,767 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:17,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:17,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1613794471, now seen corresponding path program 1 times [2023-11-19 07:56:17,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:17,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489283403] [2023-11-19 07:56:17,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:17,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:17,793 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:17,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1703105528] [2023-11-19 07:56:17,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:17,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:17,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:17,795 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:17,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:56:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:17,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:56:18,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:18,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:18,024 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:18,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:18,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489283403] [2023-11-19 07:56:18,028 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:18,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703105528] [2023-11-19 07:56:18,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703105528] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:18,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:18,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:56:18,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118936394] [2023-11-19 07:56:18,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:18,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:18,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:18,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:18,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:18,031 INFO L87 Difference]: Start difference. First operand 668 states and 1016 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:18,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:18,123 INFO L93 Difference]: Finished difference Result 1018 states and 1536 transitions. [2023-11-19 07:56:18,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:18,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 07:56:18,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:18,133 INFO L225 Difference]: With dead ends: 1018 [2023-11-19 07:56:18,133 INFO L226 Difference]: Without dead ends: 1015 [2023-11-19 07:56:18,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:18,137 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 731 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:18,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 1526 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:56:18,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2023-11-19 07:56:18,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 672. [2023-11-19 07:56:18,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 646 states have (on average 1.5263157894736843) internal successors, (986), 663 states have internal predecessors, (986), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:56:18,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1018 transitions. [2023-11-19 07:56:18,178 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1018 transitions. Word has length 7 [2023-11-19 07:56:18,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:18,178 INFO L495 AbstractCegarLoop]: Abstraction has 672 states and 1018 transitions. [2023-11-19 07:56:18,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:18,179 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1018 transitions. [2023-11-19 07:56:18,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-19 07:56:18,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:18,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:18,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:18,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:18,415 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:18,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:18,416 INFO L85 PathProgramCache]: Analyzing trace with hash -271889225, now seen corresponding path program 1 times [2023-11-19 07:56:18,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:18,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403920905] [2023-11-19 07:56:18,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:18,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:18,529 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:18,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [64621480] [2023-11-19 07:56:18,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:18,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:18,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:18,531 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:18,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:56:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:56:18,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:18,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:19,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:19,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:19,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403920905] [2023-11-19 07:56:19,007 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:19,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64621480] [2023-11-19 07:56:19,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64621480] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:19,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:19,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:56:19,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391440416] [2023-11-19 07:56:19,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:19,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:19,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:19,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:19,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:19,010 INFO L87 Difference]: Start difference. First operand 672 states and 1018 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:19,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:19,126 INFO L93 Difference]: Finished difference Result 1358 states and 2060 transitions. [2023-11-19 07:56:19,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:19,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2023-11-19 07:56:19,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:19,132 INFO L225 Difference]: With dead ends: 1358 [2023-11-19 07:56:19,132 INFO L226 Difference]: Without dead ends: 693 [2023-11-19 07:56:19,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:19,136 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 9 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:19,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1493 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:56:19,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2023-11-19 07:56:19,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 692. [2023-11-19 07:56:19,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 666 states have (on average 1.5105105105105106) internal successors, (1006), 683 states have internal predecessors, (1006), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:56:19,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1038 transitions. [2023-11-19 07:56:19,163 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1038 transitions. Word has length 151 [2023-11-19 07:56:19,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:19,164 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 1038 transitions. [2023-11-19 07:56:19,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:19,164 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1038 transitions. [2023-11-19 07:56:19,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-19 07:56:19,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:19,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:19,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:19,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:19,394 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:19,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:19,395 INFO L85 PathProgramCache]: Analyzing trace with hash 162616373, now seen corresponding path program 1 times [2023-11-19 07:56:19,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:19,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667253885] [2023-11-19 07:56:19,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:19,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:19,492 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:19,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [496663676] [2023-11-19 07:56:19,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:19,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:19,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:19,494 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:19,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:56:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:19,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:56:19,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:20,030 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:20,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:20,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667253885] [2023-11-19 07:56:20,030 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:20,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496663676] [2023-11-19 07:56:20,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496663676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:20,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:20,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:56:20,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219264839] [2023-11-19 07:56:20,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:20,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:20,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:20,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:20,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:20,039 INFO L87 Difference]: Start difference. First operand 692 states and 1038 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:20,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:20,141 INFO L93 Difference]: Finished difference Result 1398 states and 2100 transitions. [2023-11-19 07:56:20,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:20,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2023-11-19 07:56:20,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:20,149 INFO L225 Difference]: With dead ends: 1398 [2023-11-19 07:56:20,149 INFO L226 Difference]: Without dead ends: 713 [2023-11-19 07:56:20,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:20,151 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 9 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:20,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1493 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:56:20,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2023-11-19 07:56:20,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 712. [2023-11-19 07:56:20,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 686 states have (on average 1.4956268221574345) internal successors, (1026), 703 states have internal predecessors, (1026), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:56:20,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 1058 transitions. [2023-11-19 07:56:20,179 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 1058 transitions. Word has length 151 [2023-11-19 07:56:20,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:20,181 INFO L495 AbstractCegarLoop]: Abstraction has 712 states and 1058 transitions. [2023-11-19 07:56:20,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:20,182 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 1058 transitions. [2023-11-19 07:56:20,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-19 07:56:20,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:20,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:20,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:20,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:20,404 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:20,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:20,404 INFO L85 PathProgramCache]: Analyzing trace with hash 217009271, now seen corresponding path program 1 times [2023-11-19 07:56:20,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:20,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308030019] [2023-11-19 07:56:20,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:20,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:20,484 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:20,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [685887989] [2023-11-19 07:56:20,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:20,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:20,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:20,486 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:20,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:56:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:20,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:56:20,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:20,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:20,999 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:21,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:21,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308030019] [2023-11-19 07:56:21,000 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:21,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685887989] [2023-11-19 07:56:21,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685887989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:21,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:21,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:56:21,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056259881] [2023-11-19 07:56:21,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:21,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:56:21,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:21,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:56:21,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:56:21,004 INFO L87 Difference]: Start difference. First operand 712 states and 1058 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:21,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:21,114 INFO L93 Difference]: Finished difference Result 1404 states and 2096 transitions. [2023-11-19 07:56:21,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:56:21,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2023-11-19 07:56:21,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:21,122 INFO L225 Difference]: With dead ends: 1404 [2023-11-19 07:56:21,122 INFO L226 Difference]: Without dead ends: 699 [2023-11-19 07:56:21,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:56:21,125 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 165 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:21,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 2087 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:56:21,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2023-11-19 07:56:21,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 698. [2023-11-19 07:56:21,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 672 states have (on average 1.4955357142857142) internal successors, (1005), 689 states have internal predecessors, (1005), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:56:21,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1037 transitions. [2023-11-19 07:56:21,150 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1037 transitions. Word has length 151 [2023-11-19 07:56:21,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:21,150 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 1037 transitions. [2023-11-19 07:56:21,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:21,150 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1037 transitions. [2023-11-19 07:56:21,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-19 07:56:21,153 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:21,153 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:21,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:21,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:21,375 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:21,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:21,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1666222715, now seen corresponding path program 1 times [2023-11-19 07:56:21,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:21,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092833118] [2023-11-19 07:56:21,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:21,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:21,479 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:21,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2010743548] [2023-11-19 07:56:21,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:21,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:21,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:21,485 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:21,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:56:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:21,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:56:22,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:22,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:22,026 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:22,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:22,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092833118] [2023-11-19 07:56:22,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:22,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010743548] [2023-11-19 07:56:22,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010743548] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:22,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:22,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:56:22,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389367503] [2023-11-19 07:56:22,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:22,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:56:22,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:22,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:56:22,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:56:22,030 INFO L87 Difference]: Start difference. First operand 698 states and 1037 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:22,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:22,135 INFO L93 Difference]: Finished difference Result 1376 states and 2054 transitions. [2023-11-19 07:56:22,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:56:22,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2023-11-19 07:56:22,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:22,143 INFO L225 Difference]: With dead ends: 1376 [2023-11-19 07:56:22,144 INFO L226 Difference]: Without dead ends: 685 [2023-11-19 07:56:22,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:56:22,146 INFO L413 NwaCegarLoop]: 740 mSDtfsCounter, 165 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 2066 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:22,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 2066 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:56:22,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2023-11-19 07:56:22,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 684. [2023-11-19 07:56:22,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 658 states have (on average 1.4954407294832828) internal successors, (984), 675 states have internal predecessors, (984), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:56:22,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 1016 transitions. [2023-11-19 07:56:22,178 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 1016 transitions. Word has length 151 [2023-11-19 07:56:22,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:22,179 INFO L495 AbstractCegarLoop]: Abstraction has 684 states and 1016 transitions. [2023-11-19 07:56:22,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:22,179 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 1016 transitions. [2023-11-19 07:56:22,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-19 07:56:22,182 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:22,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:22,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:22,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:22,397 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:22,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:22,397 INFO L85 PathProgramCache]: Analyzing trace with hash -143142857, now seen corresponding path program 1 times [2023-11-19 07:56:22,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:22,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501178837] [2023-11-19 07:56:22,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:22,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:22,500 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:22,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1190975970] [2023-11-19 07:56:22,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:22,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:22,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:22,509 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:22,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:56:22,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:22,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:56:22,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:23,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:23,239 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:23,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:23,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501178837] [2023-11-19 07:56:23,240 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:23,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190975970] [2023-11-19 07:56:23,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190975970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:23,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:23,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:56:23,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948855882] [2023-11-19 07:56:23,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:23,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:56:23,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:23,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:56:23,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:56:23,243 INFO L87 Difference]: Start difference. First operand 684 states and 1016 transitions. Second operand has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:23,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:23,328 INFO L93 Difference]: Finished difference Result 684 states and 1016 transitions. [2023-11-19 07:56:23,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:56:23,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2023-11-19 07:56:23,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:23,334 INFO L225 Difference]: With dead ends: 684 [2023-11-19 07:56:23,334 INFO L226 Difference]: Without dead ends: 682 [2023-11-19 07:56:23,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:56:23,335 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 579 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:23,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 1500 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:56:23,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2023-11-19 07:56:23,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 682. [2023-11-19 07:56:23,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 658 states have (on average 1.4924012158054711) internal successors, (982), 673 states have internal predecessors, (982), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:56:23,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1014 transitions. [2023-11-19 07:56:23,361 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1014 transitions. Word has length 151 [2023-11-19 07:56:23,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:23,362 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 1014 transitions. [2023-11-19 07:56:23,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:23,363 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1014 transitions. [2023-11-19 07:56:23,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-19 07:56:23,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:23,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:23,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:23,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:23,577 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:23,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:23,578 INFO L85 PathProgramCache]: Analyzing trace with hash -142459799, now seen corresponding path program 1 times [2023-11-19 07:56:23,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:23,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373248956] [2023-11-19 07:56:23,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:23,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:23,660 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:23,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [602103857] [2023-11-19 07:56:23,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:23,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:23,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:23,662 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:23,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:56:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:24,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:56:24,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:24,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:24,386 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:24,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:24,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373248956] [2023-11-19 07:56:24,387 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:24,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602103857] [2023-11-19 07:56:24,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602103857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:24,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:24,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:56:24,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611280316] [2023-11-19 07:56:24,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:24,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:56:24,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:24,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:56:24,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:56:24,390 INFO L87 Difference]: Start difference. First operand 682 states and 1014 transitions. Second operand has 4 states, 3 states have (on average 50.666666666666664) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:24,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:24,479 INFO L93 Difference]: Finished difference Result 1036 states and 1526 transitions. [2023-11-19 07:56:24,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:56:24,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 50.666666666666664) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 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 152 [2023-11-19 07:56:24,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:24,487 INFO L225 Difference]: With dead ends: 1036 [2023-11-19 07:56:24,487 INFO L226 Difference]: Without dead ends: 1035 [2023-11-19 07:56:24,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:56:24,489 INFO L413 NwaCegarLoop]: 794 mSDtfsCounter, 572 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 2328 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:24,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 2328 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:56:24,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2023-11-19 07:56:24,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 1033. [2023-11-19 07:56:24,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 1003 states have (on average 1.4765702891326022) internal successors, (1481), 1018 states have internal predecessors, (1481), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 07:56:24,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1525 transitions. [2023-11-19 07:56:24,525 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1525 transitions. Word has length 152 [2023-11-19 07:56:24,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:24,525 INFO L495 AbstractCegarLoop]: Abstraction has 1033 states and 1525 transitions. [2023-11-19 07:56:24,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 50.666666666666664) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:24,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1525 transitions. [2023-11-19 07:56:24,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-19 07:56:24,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:24,529 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:24,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:24,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:24,752 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:24,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:24,753 INFO L85 PathProgramCache]: Analyzing trace with hash -2100076302, now seen corresponding path program 1 times [2023-11-19 07:56:24,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:24,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409299326] [2023-11-19 07:56:24,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:24,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:24,860 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:24,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1327778791] [2023-11-19 07:56:24,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:24,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:24,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:24,863 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:24,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:56:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:25,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:56:25,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:25,889 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:25,890 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:25,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:25,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409299326] [2023-11-19 07:56:25,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:25,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327778791] [2023-11-19 07:56:25,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327778791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:25,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:25,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:56:25,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295235889] [2023-11-19 07:56:25,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:25,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:25,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:25,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:25,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:25,894 INFO L87 Difference]: Start difference. First operand 1033 states and 1525 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:26,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:26,022 INFO L93 Difference]: Finished difference Result 1915 states and 2846 transitions. [2023-11-19 07:56:26,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:26,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2023-11-19 07:56:26,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:26,032 INFO L225 Difference]: With dead ends: 1915 [2023-11-19 07:56:26,033 INFO L226 Difference]: Without dead ends: 1187 [2023-11-19 07:56:26,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:26,038 INFO L413 NwaCegarLoop]: 936 mSDtfsCounter, 495 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:26,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 1672 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:56:26,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2023-11-19 07:56:26,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1183. [2023-11-19 07:56:26,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1143 states have (on average 1.489063867016623) internal successors, (1702), 1168 states have internal predecessors, (1702), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-19 07:56:26,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1766 transitions. [2023-11-19 07:56:26,110 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1766 transitions. Word has length 157 [2023-11-19 07:56:26,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:26,111 INFO L495 AbstractCegarLoop]: Abstraction has 1183 states and 1766 transitions. [2023-11-19 07:56:26,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:26,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1766 transitions. [2023-11-19 07:56:26,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-19 07:56:26,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:26,114 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:26,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:26,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:26,329 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:26,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:26,329 INFO L85 PathProgramCache]: Analyzing trace with hash 606241550, now seen corresponding path program 1 times [2023-11-19 07:56:26,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:26,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138005346] [2023-11-19 07:56:26,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:26,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:26,422 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:26,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1609619908] [2023-11-19 07:56:26,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:26,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:26,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:26,424 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:26,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:56:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:27,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:56:27,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:27,205 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:56:27,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:27,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:27,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138005346] [2023-11-19 07:56:27,206 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:27,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609619908] [2023-11-19 07:56:27,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609619908] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:27,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:27,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:56:27,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127569888] [2023-11-19 07:56:27,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:27,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:27,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:27,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:27,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:27,209 INFO L87 Difference]: Start difference. First operand 1183 states and 1766 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:56:27,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:27,291 INFO L93 Difference]: Finished difference Result 2233 states and 3337 transitions. [2023-11-19 07:56:27,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:27,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 172 [2023-11-19 07:56:27,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:27,314 INFO L225 Difference]: With dead ends: 2233 [2023-11-19 07:56:27,315 INFO L226 Difference]: Without dead ends: 1181 [2023-11-19 07:56:27,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:27,319 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 123 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:27,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1499 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:56:27,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2023-11-19 07:56:27,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1181. [2023-11-19 07:56:27,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 1141 states have (on average 1.4890446976336547) internal successors, (1699), 1166 states have internal predecessors, (1699), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-19 07:56:27,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1763 transitions. [2023-11-19 07:56:27,413 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1763 transitions. Word has length 172 [2023-11-19 07:56:27,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:27,415 INFO L495 AbstractCegarLoop]: Abstraction has 1181 states and 1763 transitions. [2023-11-19 07:56:27,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:56:27,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1763 transitions. [2023-11-19 07:56:27,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-19 07:56:27,418 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:27,418 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:27,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:27,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-19 07:56:27,632 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:27,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:27,633 INFO L85 PathProgramCache]: Analyzing trace with hash 366255644, now seen corresponding path program 1 times [2023-11-19 07:56:27,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:27,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396599114] [2023-11-19 07:56:27,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:27,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:27,742 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:27,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2036753263] [2023-11-19 07:56:27,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:27,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:27,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:27,753 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:27,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 07:56:28,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:28,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-19 07:56:28,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:28,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:56:28,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2023-11-19 07:56:28,941 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:56:28,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 23 [2023-11-19 07:56:29,235 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:56:29,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:29,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:29,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396599114] [2023-11-19 07:56:29,237 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:29,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036753263] [2023-11-19 07:56:29,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036753263] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:29,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:29,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-19 07:56:29,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304762395] [2023-11-19 07:56:29,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:29,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:56:29,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:29,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:56:29,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:56:29,240 INFO L87 Difference]: Start difference. First operand 1181 states and 1763 transitions. Second operand has 11 states, 11 states have (on average 15.454545454545455) internal successors, (170), 11 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 07:56:32,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:32,329 INFO L93 Difference]: Finished difference Result 2322 states and 3457 transitions. [2023-11-19 07:56:32,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:56:32,330 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.454545454545455) internal successors, (170), 11 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 187 [2023-11-19 07:56:32,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:32,338 INFO L225 Difference]: With dead ends: 2322 [2023-11-19 07:56:32,339 INFO L226 Difference]: Without dead ends: 1224 [2023-11-19 07:56:32,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-11-19 07:56:32,342 INFO L413 NwaCegarLoop]: 740 mSDtfsCounter, 970 mSDsluCounter, 5285 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 6025 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:32,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 6025 Invalid, 1649 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-19 07:56:32,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2023-11-19 07:56:32,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1213. [2023-11-19 07:56:32,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 1173 states have (on average 1.4799658994032396) internal successors, (1736), 1198 states have internal predecessors, (1736), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-19 07:56:32,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1800 transitions. [2023-11-19 07:56:32,428 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1800 transitions. Word has length 187 [2023-11-19 07:56:32,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:32,428 INFO L495 AbstractCegarLoop]: Abstraction has 1213 states and 1800 transitions. [2023-11-19 07:56:32,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.454545454545455) internal successors, (170), 11 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 07:56:32,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1800 transitions. [2023-11-19 07:56:32,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-19 07:56:32,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:32,432 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:32,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:32,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-19 07:56:32,657 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:32,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:32,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1770124830, now seen corresponding path program 1 times [2023-11-19 07:56:32,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:32,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351427288] [2023-11-19 07:56:32,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:32,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:32,751 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:32,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [875838654] [2023-11-19 07:56:32,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:32,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:32,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:32,753 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:32,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 07:56:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:33,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:56:33,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:33,459 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:56:33,459 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:33,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:33,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351427288] [2023-11-19 07:56:33,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:33,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875838654] [2023-11-19 07:56:33,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875838654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:33,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:33,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:56:33,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890667358] [2023-11-19 07:56:33,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:33,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:56:33,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:33,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:56:33,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:56:33,464 INFO L87 Difference]: Start difference. First operand 1213 states and 1800 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 07:56:33,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:33,615 INFO L93 Difference]: Finished difference Result 2511 states and 3760 transitions. [2023-11-19 07:56:33,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:56:33,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 187 [2023-11-19 07:56:33,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:33,626 INFO L225 Difference]: With dead ends: 2511 [2023-11-19 07:56:33,626 INFO L226 Difference]: Without dead ends: 1401 [2023-11-19 07:56:33,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:56:33,629 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 145 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 2213 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:33,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 2213 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:56:33,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2023-11-19 07:56:33,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1236. [2023-11-19 07:56:33,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1236 states, 1196 states have (on average 1.4698996655518395) internal successors, (1758), 1221 states have internal predecessors, (1758), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-19 07:56:33,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 1822 transitions. [2023-11-19 07:56:33,688 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 1822 transitions. Word has length 187 [2023-11-19 07:56:33,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:33,689 INFO L495 AbstractCegarLoop]: Abstraction has 1236 states and 1822 transitions. [2023-11-19 07:56:33,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 07:56:33,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 1822 transitions. [2023-11-19 07:56:33,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-19 07:56:33,692 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:33,692 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:33,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:33,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-19 07:56:33,916 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:33,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:33,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1263524033, now seen corresponding path program 1 times [2023-11-19 07:56:33,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:33,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107900524] [2023-11-19 07:56:33,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:33,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:34,024 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:34,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [127734317] [2023-11-19 07:56:34,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:34,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:34,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:34,026 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:34,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 07:56:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:34,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 07:56:34,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:34,911 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:56:34,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:34,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:34,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107900524] [2023-11-19 07:56:34,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:34,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127734317] [2023-11-19 07:56:34,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127734317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:34,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:34,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:56:34,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674383189] [2023-11-19 07:56:34,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:34,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:56:34,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:34,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:56:34,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:56:34,928 INFO L87 Difference]: Start difference. First operand 1236 states and 1822 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 07:56:35,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:35,178 INFO L93 Difference]: Finished difference Result 2380 states and 3526 transitions. [2023-11-19 07:56:35,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:56:35,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 188 [2023-11-19 07:56:35,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:35,187 INFO L225 Difference]: With dead ends: 2380 [2023-11-19 07:56:35,187 INFO L226 Difference]: Without dead ends: 1259 [2023-11-19 07:56:35,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:56:35,191 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 15 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:35,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2084 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:56:35,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2023-11-19 07:56:35,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1247. [2023-11-19 07:56:35,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1207 states have (on average 1.4664457332228666) internal successors, (1770), 1232 states have internal predecessors, (1770), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-19 07:56:35,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1834 transitions. [2023-11-19 07:56:35,240 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1834 transitions. Word has length 188 [2023-11-19 07:56:35,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:35,240 INFO L495 AbstractCegarLoop]: Abstraction has 1247 states and 1834 transitions. [2023-11-19 07:56:35,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 07:56:35,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1834 transitions. [2023-11-19 07:56:35,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-11-19 07:56:35,243 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:35,243 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:35,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:35,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-19 07:56:35,457 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:35,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:35,457 INFO L85 PathProgramCache]: Analyzing trace with hash 193780951, now seen corresponding path program 1 times [2023-11-19 07:56:35,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:35,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5353690] [2023-11-19 07:56:35,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:35,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:35,556 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:35,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1995676087] [2023-11-19 07:56:35,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:35,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:35,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:35,558 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:35,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-19 07:56:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:36,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 1049 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:56:36,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:36,583 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:56:36,583 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:36,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:36,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5353690] [2023-11-19 07:56:36,584 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:36,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995676087] [2023-11-19 07:56:36,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995676087] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:36,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:36,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:56:36,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114346771] [2023-11-19 07:56:36,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:36,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:56:36,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:36,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:56:36,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:56:36,587 INFO L87 Difference]: Start difference. First operand 1247 states and 1834 transitions. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 07:56:36,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:36,989 INFO L93 Difference]: Finished difference Result 2388 states and 3530 transitions. [2023-11-19 07:56:36,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:56:36,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 189 [2023-11-19 07:56:36,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:36,999 INFO L225 Difference]: With dead ends: 2388 [2023-11-19 07:56:36,999 INFO L226 Difference]: Without dead ends: 1261 [2023-11-19 07:56:37,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:56:37,004 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 10 mSDsluCounter, 1959 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2708 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:37,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2708 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:56:37,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2023-11-19 07:56:37,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1257. [2023-11-19 07:56:37,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1217 states have (on average 1.4658997534921938) internal successors, (1784), 1242 states have internal predecessors, (1784), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-19 07:56:37,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1848 transitions. [2023-11-19 07:56:37,057 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1848 transitions. Word has length 189 [2023-11-19 07:56:37,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:37,057 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 1848 transitions. [2023-11-19 07:56:37,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 07:56:37,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1848 transitions. [2023-11-19 07:56:37,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-11-19 07:56:37,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:37,061 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:37,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:37,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-19 07:56:37,275 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:37,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:37,276 INFO L85 PathProgramCache]: Analyzing trace with hash 2088114837, now seen corresponding path program 1 times [2023-11-19 07:56:37,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:37,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230378779] [2023-11-19 07:56:37,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:37,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:37,382 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:37,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [830703726] [2023-11-19 07:56:37,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:37,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:37,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:37,384 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:37,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-19 07:56:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:38,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-19 07:56:38,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:38,433 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 07:56:38,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:38,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:38,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230378779] [2023-11-19 07:56:38,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:38,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830703726] [2023-11-19 07:56:38,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830703726] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:38,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:38,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:56:38,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370236711] [2023-11-19 07:56:38,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:38,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:56:38,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:38,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:56:38,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:56:38,437 INFO L87 Difference]: Start difference. First operand 1257 states and 1848 transitions. Second operand has 9 states, 9 states have (on average 19.444444444444443) internal successors, (175), 9 states have internal predecessors, (175), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:56:39,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:39,091 INFO L93 Difference]: Finished difference Result 2319 states and 3417 transitions. [2023-11-19 07:56:39,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:56:39,092 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.444444444444443) internal successors, (175), 9 states have internal predecessors, (175), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 189 [2023-11-19 07:56:39,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:39,100 INFO L225 Difference]: With dead ends: 2319 [2023-11-19 07:56:39,101 INFO L226 Difference]: Without dead ends: 1355 [2023-11-19 07:56:39,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:56:39,104 INFO L413 NwaCegarLoop]: 740 mSDtfsCounter, 27 mSDsluCounter, 3946 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 4686 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:39,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 4686 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:56:39,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2023-11-19 07:56:39,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 1337. [2023-11-19 07:56:39,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1297 states have (on average 1.4494988434849654) internal successors, (1880), 1322 states have internal predecessors, (1880), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-19 07:56:39,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1944 transitions. [2023-11-19 07:56:39,156 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1944 transitions. Word has length 189 [2023-11-19 07:56:39,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:39,156 INFO L495 AbstractCegarLoop]: Abstraction has 1337 states and 1944 transitions. [2023-11-19 07:56:39,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.444444444444443) internal successors, (175), 9 states have internal predecessors, (175), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:56:39,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1944 transitions. [2023-11-19 07:56:39,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-11-19 07:56:39,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:39,159 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:39,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:39,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-19 07:56:39,374 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:39,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:39,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1823623270, now seen corresponding path program 1 times [2023-11-19 07:56:39,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:39,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733617381] [2023-11-19 07:56:39,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:39,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:39,463 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:39,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [252417864] [2023-11-19 07:56:39,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:39,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:39,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:39,465 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:39,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-19 07:56:40,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:40,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 07:56:40,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:40,604 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 07:56:40,604 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:40,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:40,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733617381] [2023-11-19 07:56:40,605 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:40,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252417864] [2023-11-19 07:56:40,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252417864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:40,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:40,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:56:40,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943525932] [2023-11-19 07:56:40,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:40,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:56:40,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:40,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:56:40,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:56:40,609 INFO L87 Difference]: Start difference. First operand 1337 states and 1944 transitions. Second operand has 9 states, 9 states have (on average 19.555555555555557) internal successors, (176), 9 states have internal predecessors, (176), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:56:41,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:41,234 INFO L93 Difference]: Finished difference Result 2363 states and 3464 transitions. [2023-11-19 07:56:41,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:56:41,234 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.555555555555557) internal successors, (176), 9 states have internal predecessors, (176), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 190 [2023-11-19 07:56:41,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:41,243 INFO L225 Difference]: With dead ends: 2363 [2023-11-19 07:56:41,243 INFO L226 Difference]: Without dead ends: 1371 [2023-11-19 07:56:41,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:56:41,246 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 28 mSDsluCounter, 4523 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 5258 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:41,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 5258 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:56:41,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2023-11-19 07:56:41,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1353. [2023-11-19 07:56:41,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1353 states, 1313 states have (on average 1.45011424219345) internal successors, (1904), 1338 states have internal predecessors, (1904), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-19 07:56:41,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1968 transitions. [2023-11-19 07:56:41,298 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1968 transitions. Word has length 190 [2023-11-19 07:56:41,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:41,299 INFO L495 AbstractCegarLoop]: Abstraction has 1353 states and 1968 transitions. [2023-11-19 07:56:41,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.555555555555557) internal successors, (176), 9 states have internal predecessors, (176), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:56:41,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1968 transitions. [2023-11-19 07:56:41,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-19 07:56:41,301 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:41,302 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:41,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:41,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-19 07:56:41,525 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:41,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:41,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1787964374, now seen corresponding path program 1 times [2023-11-19 07:56:41,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:41,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349779391] [2023-11-19 07:56:41,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:41,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:41,619 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:41,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [910185113] [2023-11-19 07:56:41,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:41,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:41,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:41,621 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:41,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-19 07:56:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:42,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 1049 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 07:56:42,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:42,725 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 07:56:42,725 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:42,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:42,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349779391] [2023-11-19 07:56:42,726 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:42,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910185113] [2023-11-19 07:56:42,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910185113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:42,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:42,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:56:42,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503867937] [2023-11-19 07:56:42,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:42,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:56:42,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:42,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:56:42,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:56:42,729 INFO L87 Difference]: Start difference. First operand 1353 states and 1968 transitions. Second operand has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 7 states have internal predecessors, (177), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:56:43,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:43,236 INFO L93 Difference]: Finished difference Result 2365 states and 3464 transitions. [2023-11-19 07:56:43,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:56:43,236 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 7 states have internal predecessors, (177), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 191 [2023-11-19 07:56:43,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:43,245 INFO L225 Difference]: With dead ends: 2365 [2023-11-19 07:56:43,245 INFO L226 Difference]: Without dead ends: 1349 [2023-11-19 07:56:43,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:56:43,248 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 11 mSDsluCounter, 2609 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3355 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:43,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 3355 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:56:43,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2023-11-19 07:56:43,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1345. [2023-11-19 07:56:43,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1305 states have (on average 1.4482758620689655) internal successors, (1890), 1330 states have internal predecessors, (1890), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-19 07:56:43,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1954 transitions. [2023-11-19 07:56:43,295 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1954 transitions. Word has length 191 [2023-11-19 07:56:43,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:43,296 INFO L495 AbstractCegarLoop]: Abstraction has 1345 states and 1954 transitions. [2023-11-19 07:56:43,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 7 states have internal predecessors, (177), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:56:43,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1954 transitions. [2023-11-19 07:56:43,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-19 07:56:43,298 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:43,298 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:43,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:43,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-19 07:56:43,515 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:43,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:43,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1520707886, now seen corresponding path program 1 times [2023-11-19 07:56:43,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:43,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714437165] [2023-11-19 07:56:43,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:43,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:43,602 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:43,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2144081778] [2023-11-19 07:56:43,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:43,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:43,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:43,604 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:43,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-19 07:56:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:44,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 07:56:44,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:44,661 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 07:56:44,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:44,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:44,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714437165] [2023-11-19 07:56:44,662 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:44,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144081778] [2023-11-19 07:56:44,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144081778] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:44,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:44,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:56:44,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053471095] [2023-11-19 07:56:44,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:44,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:56:44,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:44,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:56:44,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:56:44,666 INFO L87 Difference]: Start difference. First operand 1345 states and 1954 transitions. Second operand has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:56:44,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:44,774 INFO L93 Difference]: Finished difference Result 2530 states and 3696 transitions. [2023-11-19 07:56:44,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:56:44,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 191 [2023-11-19 07:56:44,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:44,789 INFO L225 Difference]: With dead ends: 2530 [2023-11-19 07:56:44,789 INFO L226 Difference]: Without dead ends: 1348 [2023-11-19 07:56:44,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:56:44,792 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 2 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2255 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:44,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2255 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:56:44,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2023-11-19 07:56:44,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 1348. [2023-11-19 07:56:44,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1307 states have (on average 1.4483550114766641) internal successors, (1893), 1333 states have internal predecessors, (1893), 32 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (36), 16 states have call predecessors, (36), 32 states have call successors, (36) [2023-11-19 07:56:44,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1961 transitions. [2023-11-19 07:56:44,842 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1961 transitions. Word has length 191 [2023-11-19 07:56:44,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:44,842 INFO L495 AbstractCegarLoop]: Abstraction has 1348 states and 1961 transitions. [2023-11-19 07:56:44,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:56:44,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1961 transitions. [2023-11-19 07:56:44,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-11-19 07:56:44,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:44,845 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:44,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:45,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:45,069 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:45,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:45,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1461922858, now seen corresponding path program 1 times [2023-11-19 07:56:45,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:45,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101127215] [2023-11-19 07:56:45,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:45,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:45,164 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:45,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [858592642] [2023-11-19 07:56:45,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:45,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:45,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:45,166 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:45,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-19 07:56:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:46,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 07:56:46,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:46,306 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-19 07:56:46,306 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:56:46,411 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-19 07:56:46,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:46,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101127215] [2023-11-19 07:56:46,412 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:46,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858592642] [2023-11-19 07:56:46,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858592642] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:56:46,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:56:46,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-19 07:56:46,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916759923] [2023-11-19 07:56:46,413 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:56:46,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:56:46,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:46,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:56:46,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:56:46,415 INFO L87 Difference]: Start difference. First operand 1348 states and 1961 transitions. Second operand has 8 states, 8 states have (on average 23.5) internal successors, (188), 8 states have internal predecessors, (188), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:56:46,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:46,595 INFO L93 Difference]: Finished difference Result 2544 states and 3730 transitions. [2023-11-19 07:56:46,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:56:46,596 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.5) internal successors, (188), 8 states have internal predecessors, (188), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 195 [2023-11-19 07:56:46,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:46,604 INFO L225 Difference]: With dead ends: 2544 [2023-11-19 07:56:46,604 INFO L226 Difference]: Without dead ends: 1357 [2023-11-19 07:56:46,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:56:46,608 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 11 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2986 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:46,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2986 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:56:46,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2023-11-19 07:56:46,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1357. [2023-11-19 07:56:46,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1315 states have (on average 1.4486692015209126) internal successors, (1905), 1341 states have internal predecessors, (1905), 32 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (40), 16 states have call predecessors, (40), 32 states have call successors, (40) [2023-11-19 07:56:46,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1977 transitions. [2023-11-19 07:56:46,667 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1977 transitions. Word has length 195 [2023-11-19 07:56:46,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:46,668 INFO L495 AbstractCegarLoop]: Abstraction has 1357 states and 1977 transitions. [2023-11-19 07:56:46,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.5) internal successors, (188), 8 states have internal predecessors, (188), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:56:46,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1977 transitions. [2023-11-19 07:56:46,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-11-19 07:56:46,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:46,672 INFO L195 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:46,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:46,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2023-11-19 07:56:46,892 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:46,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:46,893 INFO L85 PathProgramCache]: Analyzing trace with hash -276624530, now seen corresponding path program 2 times [2023-11-19 07:56:46,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:46,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147357015] [2023-11-19 07:56:46,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:46,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:47,012 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:47,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [763944339] [2023-11-19 07:56:47,012 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:56:47,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:47,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:47,014 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:47,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-19 07:56:49,210 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:56:49,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:56:49,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 1227 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 07:56:49,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:49,323 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 83 proven. 26 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-19 07:56:49,323 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:56:49,562 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 22 proven. 54 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-19 07:56:49,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:49,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147357015] [2023-11-19 07:56:49,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:56:49,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763944339] [2023-11-19 07:56:49,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763944339] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:56:49,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:56:49,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2023-11-19 07:56:49,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229191828] [2023-11-19 07:56:49,563 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:56:49,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-19 07:56:49,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:49,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-19 07:56:49,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2023-11-19 07:56:49,565 INFO L87 Difference]: Start difference. First operand 1357 states and 1977 transitions. Second operand has 16 states, 16 states have (on average 12.3125) internal successors, (197), 16 states have internal predecessors, (197), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:56:50,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:50,293 INFO L93 Difference]: Finished difference Result 2539 states and 3741 transitions. [2023-11-19 07:56:50,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-19 07:56:50,294 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.3125) internal successors, (197), 16 states have internal predecessors, (197), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 203 [2023-11-19 07:56:50,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:50,301 INFO L225 Difference]: With dead ends: 2539 [2023-11-19 07:56:50,301 INFO L226 Difference]: Without dead ends: 1224 [2023-11-19 07:56:50,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=248, Invalid=508, Unknown=0, NotChecked=0, Total=756 [2023-11-19 07:56:50,305 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 114 mSDsluCounter, 4594 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 5267 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:50,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 5267 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:56:50,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2023-11-19 07:56:50,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1222. [2023-11-19 07:56:50,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1179 states have (on average 1.4435962680237489) internal successors, (1702), 1206 states have internal predecessors, (1702), 32 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (44), 16 states have call predecessors, (44), 32 states have call successors, (44) [2023-11-19 07:56:50,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1778 transitions. [2023-11-19 07:56:50,384 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1778 transitions. Word has length 203 [2023-11-19 07:56:50,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:50,385 INFO L495 AbstractCegarLoop]: Abstraction has 1222 states and 1778 transitions. [2023-11-19 07:56:50,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.3125) internal successors, (197), 16 states have internal predecessors, (197), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:56:50,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1778 transitions. [2023-11-19 07:56:50,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-11-19 07:56:50,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:50,388 INFO L195 NwaCegarLoop]: trace histogram [24, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:50,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:50,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-19 07:56:50,604 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-19 07:56:50,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:50,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1390172882, now seen corresponding path program 3 times [2023-11-19 07:56:50,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:50,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634702564] [2023-11-19 07:56:50,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:50,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:50,730 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:56:50,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2093117863] [2023-11-19 07:56:50,730 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:56:50,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:50,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:50,732 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:50,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b515d7-1d65-49e0-a97d-6151771db507/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-19 07:56:51,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-19 07:56:51,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:56:51,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 07:56:51,741 INFO L285 TraceCheckSpWp]: Computing forward predicates...