./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/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_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/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 64bit --witnessprinter.graph.data.programhash 66690b8f2afac00b38604fc5fd1edb6c2524e6892200d6512ef98cf0032d8df1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:42:59,295 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:42:59,441 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-19 07:42:59,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:42:59,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:42:59,499 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:42:59,499 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:42:59,500 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:42:59,501 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:42:59,509 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:42:59,510 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:42:59,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:42:59,511 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:42:59,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:42:59,514 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:42:59,514 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:42:59,515 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:42:59,515 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:42:59,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:42:59,516 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:42:59,517 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:42:59,517 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:42:59,518 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:42:59,518 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:42:59,519 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:42:59,520 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:42:59,520 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:42:59,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:59,521 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:42:59,523 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:42:59,525 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:42:59,525 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:42:59,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:42:59,526 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:42:59,526 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:42:59,526 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:42:59,527 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:42:59,527 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:42:59,527 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_69e79900-1e40-4980-9b30-b650fd302214/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66690b8f2afac00b38604fc5fd1edb6c2524e6892200d6512ef98cf0032d8df1 [2023-11-19 07:42:59,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:42:59,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:42:59,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:42:59,850 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:42:59,851 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:42:59,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2023-11-19 07:43:03,282 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:43:03,745 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:43:03,746 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2023-11-19 07:43:03,788 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/data/004f58f96/ecc16c6093104805b780fc1dc8a4a40a/FLAG06dbe5e7c [2023-11-19 07:43:03,808 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/data/004f58f96/ecc16c6093104805b780fc1dc8a4a40a [2023-11-19 07:43:03,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:43:03,819 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:43:03,822 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:03,822 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:43:03,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:43:03,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:03" (1/1) ... [2023-11-19 07:43:03,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c77984d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:03, skipping insertion in model container [2023-11-19 07:43:03,830 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:03" (1/1) ... [2023-11-19 07:43:03,961 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:43:04,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:04,975 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:43:05,258 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4823-4824] [2023-11-19 07:43:05,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4826-4827] [2023-11-19 07:43:05,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4830-4831] [2023-11-19 07:43:05,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4833-4834] [2023-11-19 07:43:05,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4837-4838] [2023-11-19 07:43:05,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:05,353 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:43:05,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:05 WrapperNode [2023-11-19 07:43:05,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:05,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:05,357 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:43:05,357 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:43:05,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:05" (1/1) ... [2023-11-19 07:43:05,391 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:05" (1/1) ... [2023-11-19 07:43:05,457 INFO L138 Inliner]: procedures = 49, calls = 67, calls flagged for inlining = 23, calls inlined = 16, statements flattened = 188 [2023-11-19 07:43:05,458 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:05,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:43:05,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:43:05,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:43:05,474 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:05" (1/1) ... [2023-11-19 07:43:05,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:05" (1/1) ... [2023-11-19 07:43:05,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:05" (1/1) ... [2023-11-19 07:43:05,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:05" (1/1) ... [2023-11-19 07:43:05,533 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:05" (1/1) ... [2023-11-19 07:43:05,536 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:05" (1/1) ... [2023-11-19 07:43:05,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:05" (1/1) ... [2023-11-19 07:43:05,557 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:05" (1/1) ... [2023-11-19 07:43:05,562 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:43:05,563 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:43:05,564 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:43:05,564 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:43:05,565 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:05" (1/1) ... [2023-11-19 07:43:05,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:05,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:05,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:43:05,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:43:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:43:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:43:05,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2023-11-19 07:43:05,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2023-11-19 07:43:05,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2023-11-19 07:43:05,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2023-11-19 07:43:05,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:43:05,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:43:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:43:05,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:43:05,947 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:43:05,950 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:43:05,961 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 07:43:06,239 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2023-11-19 07:43:06,240 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2023-11-19 07:43:06,273 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:43:06,283 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:43:06,283 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:43:06,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:06 BoogieIcfgContainer [2023-11-19 07:43:06,292 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:43:06,295 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:43:06,297 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:43:06,301 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:43:06,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:43:03" (1/3) ... [2023-11-19 07:43:06,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@475cbe96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:06, skipping insertion in model container [2023-11-19 07:43:06,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:05" (2/3) ... [2023-11-19 07:43:06,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@475cbe96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:06, skipping insertion in model container [2023-11-19 07:43:06,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:06" (3/3) ... [2023-11-19 07:43:06,308 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-pppox.ko.cil.out.i [2023-11-19 07:43:06,332 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:43:06,332 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-19 07:43:06,387 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:43:06,395 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;@77be9b30, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:43:06,396 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-19 07:43:06,402 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 53 states have internal predecessors, (65), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:43:06,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 07:43:06,414 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:06,415 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] [2023-11-19 07:43:06,416 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_module_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:43:06,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:06,424 INFO L85 PathProgramCache]: Analyzing trace with hash 249479780, now seen corresponding path program 1 times [2023-11-19 07:43:06,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:06,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617670540] [2023-11-19 07:43:06,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:06,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:06,901 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 07:43:06,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:06,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617670540] [2023-11-19 07:43:06,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617670540] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:06,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:06,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:43:06,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308729464] [2023-11-19 07:43:06,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:06,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:06,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:06,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:06,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:06,943 INFO L87 Difference]: Start difference. First operand has 57 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 53 states have internal predecessors, (65), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:07,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:07,023 INFO L93 Difference]: Finished difference Result 142 states and 188 transitions. [2023-11-19 07:43:07,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:07,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-19 07:43:07,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:07,034 INFO L225 Difference]: With dead ends: 142 [2023-11-19 07:43:07,035 INFO L226 Difference]: Without dead ends: 69 [2023-11-19 07:43:07,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 07:43:07,043 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 36 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:07,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 104 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:43:07,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-19 07:43:07,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-11-19 07:43:07,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 61 states have (on average 1.3442622950819672) internal successors, (82), 64 states have internal predecessors, (82), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:43:07,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2023-11-19 07:43:07,092 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 20 [2023-11-19 07:43:07,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:07,093 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2023-11-19 07:43:07,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:07,093 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2023-11-19 07:43:07,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 07:43:07,095 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:07,095 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] [2023-11-19 07:43:07,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:43:07,096 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_module_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_module_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:43:07,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:07,097 INFO L85 PathProgramCache]: Analyzing trace with hash 674992919, now seen corresponding path program 1 times [2023-11-19 07:43:07,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:07,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666291476] [2023-11-19 07:43:07,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:07,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:07,278 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 07:43:07,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:07,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666291476] [2023-11-19 07:43:07,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666291476] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:07,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:07,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:07,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217258817] [2023-11-19 07:43:07,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:07,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:07,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:07,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:07,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:07,284 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:07,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:07,308 INFO L93 Difference]: Finished difference Result 69 states and 86 transitions. [2023-11-19 07:43:07,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:07,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-11-19 07:43:07,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:07,311 INFO L225 Difference]: With dead ends: 69 [2023-11-19 07:43:07,312 INFO L226 Difference]: Without dead ends: 68 [2023-11-19 07:43:07,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:07,314 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 2 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:07,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 86 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:43:07,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-19 07:43:07,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-11-19 07:43:07,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 63 states have internal predecessors, (81), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:43:07,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 85 transitions. [2023-11-19 07:43:07,341 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 85 transitions. Word has length 30 [2023-11-19 07:43:07,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:07,344 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 85 transitions. [2023-11-19 07:43:07,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:07,344 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 85 transitions. [2023-11-19 07:43:07,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 07:43:07,348 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:07,349 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] [2023-11-19 07:43:07,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:43:07,350 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_module_putErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_module_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:43:07,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:07,351 INFO L85 PathProgramCache]: Analyzing trace with hash -550055835, now seen corresponding path program 1 times [2023-11-19 07:43:07,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:07,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372628227] [2023-11-19 07:43:07,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:07,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:07,754 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 07:43:07,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:07,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372628227] [2023-11-19 07:43:07,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372628227] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:07,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:07,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:07,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477017406] [2023-11-19 07:43:07,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:07,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:07,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:07,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:07,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:07,758 INFO L87 Difference]: Start difference. First operand 68 states and 85 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:07,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:07,804 INFO L93 Difference]: Finished difference Result 101 states and 128 transitions. [2023-11-19 07:43:07,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:07,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2023-11-19 07:43:07,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:07,807 INFO L225 Difference]: With dead ends: 101 [2023-11-19 07:43:07,807 INFO L226 Difference]: Without dead ends: 99 [2023-11-19 07:43:07,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:07,809 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 51 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:07,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 111 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:43:07,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-19 07:43:07,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-11-19 07:43:07,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 90 states have (on average 1.3333333333333333) internal successors, (120), 92 states have internal predecessors, (120), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:43:07,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 126 transitions. [2023-11-19 07:43:07,824 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 126 transitions. Word has length 31 [2023-11-19 07:43:07,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:07,825 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 126 transitions. [2023-11-19 07:43:07,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:07,825 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 126 transitions. [2023-11-19 07:43:07,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 07:43:07,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:07,827 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:07,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:43:07,828 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_module_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:43:07,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:07,829 INFO L85 PathProgramCache]: Analyzing trace with hash -807548630, now seen corresponding path program 1 times [2023-11-19 07:43:07,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:07,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231521011] [2023-11-19 07:43:07,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:07,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:08,054 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:08,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:08,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231521011] [2023-11-19 07:43:08,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231521011] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:08,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:08,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:43:08,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003456658] [2023-11-19 07:43:08,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:08,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:43:08,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:08,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:43:08,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:43:08,061 INFO L87 Difference]: Start difference. First operand 99 states and 126 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 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 07:43:08,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:08,205 INFO L93 Difference]: Finished difference Result 206 states and 266 transitions. [2023-11-19 07:43:08,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:43:08,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2023-11-19 07:43:08,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:08,212 INFO L225 Difference]: With dead ends: 206 [2023-11-19 07:43:08,213 INFO L226 Difference]: Without dead ends: 141 [2023-11-19 07:43:08,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:43:08,217 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 51 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:08,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 224 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:43:08,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-19 07:43:08,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 105. [2023-11-19 07:43:08,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 96 states have (on average 1.3125) internal successors, (126), 98 states have internal predecessors, (126), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:43:08,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 132 transitions. [2023-11-19 07:43:08,256 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 132 transitions. Word has length 40 [2023-11-19 07:43:08,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:08,257 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 132 transitions. [2023-11-19 07:43:08,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 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 07:43:08,257 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 132 transitions. [2023-11-19 07:43:08,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 07:43:08,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:08,264 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2023-11-19 07:43:08,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:43:08,265 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_module_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:43:08,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:08,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1427254236, now seen corresponding path program 1 times [2023-11-19 07:43:08,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:08,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230259136] [2023-11-19 07:43:08,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:08,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:08,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:43:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:08,593 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:08,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:08,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230259136] [2023-11-19 07:43:08,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230259136] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:43:08,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913660611] [2023-11-19 07:43:08,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:08,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:08,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:08,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:08,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:43:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:08,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:43:08,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:08,919 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:08,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:08,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913660611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:08,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:43:08,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-11-19 07:43:08,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326452150] [2023-11-19 07:43:08,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:08,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:43:08,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:08,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:43:08,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:43:08,923 INFO L87 Difference]: Start difference. First operand 105 states and 132 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:43:08,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:08,982 INFO L93 Difference]: Finished difference Result 167 states and 217 transitions. [2023-11-19 07:43:08,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:43:08,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 47 [2023-11-19 07:43:08,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:08,986 INFO L225 Difference]: With dead ends: 167 [2023-11-19 07:43:08,987 INFO L226 Difference]: Without dead ends: 166 [2023-11-19 07:43:08,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:43:08,989 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 56 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:08,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 175 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:43:08,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-11-19 07:43:09,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 104. [2023-11-19 07:43:09,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 96 states have (on average 1.2916666666666667) internal successors, (124), 97 states have internal predecessors, (124), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:43:09,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 130 transitions. [2023-11-19 07:43:09,003 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 130 transitions. Word has length 47 [2023-11-19 07:43:09,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:09,004 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 130 transitions. [2023-11-19 07:43:09,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:43:09,004 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 130 transitions. [2023-11-19 07:43:09,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 07:43:09,006 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:09,007 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:09,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 07:43:09,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:09,222 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_module_putErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_module_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:43:09,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:09,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1128090605, now seen corresponding path program 1 times [2023-11-19 07:43:09,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:09,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097522575] [2023-11-19 07:43:09,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:09,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:09,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:43:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:09,680 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:09,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:09,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097522575] [2023-11-19 07:43:09,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097522575] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:43:09,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129224790] [2023-11-19 07:43:09,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:09,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:09,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:09,684 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:09,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:43:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:09,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:43:09,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:10,056 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:10,056 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:43:10,293 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:10,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129224790] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:43:10,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:43:10,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2023-11-19 07:43:10,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597744778] [2023-11-19 07:43:10,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:43:10,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:43:10,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:10,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:43:10,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:43:10,300 INFO L87 Difference]: Start difference. First operand 104 states and 130 transitions. Second operand has 12 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 4 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:43:10,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:10,563 INFO L93 Difference]: Finished difference Result 338 states and 438 transitions. [2023-11-19 07:43:10,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 07:43:10,565 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 4 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 58 [2023-11-19 07:43:10,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:10,568 INFO L225 Difference]: With dead ends: 338 [2023-11-19 07:43:10,568 INFO L226 Difference]: Without dead ends: 269 [2023-11-19 07:43:10,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 110 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=258, Unknown=0, NotChecked=0, Total=420 [2023-11-19 07:43:10,578 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 304 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:10,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 242 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:43:10,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-11-19 07:43:10,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 174. [2023-11-19 07:43:10,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 160 states have (on average 1.28125) internal successors, (205), 163 states have internal predecessors, (205), 5 states have call successors, (5), 5 states have call predecessors, (5), 8 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-19 07:43:10,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 219 transitions. [2023-11-19 07:43:10,621 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 219 transitions. Word has length 58 [2023-11-19 07:43:10,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:10,624 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 219 transitions. [2023-11-19 07:43:10,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 4 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:43:10,625 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 219 transitions. [2023-11-19 07:43:10,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-19 07:43:10,631 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:10,631 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:10,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:10,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:10,860 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_module_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:43:10,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:10,861 INFO L85 PathProgramCache]: Analyzing trace with hash 113565813, now seen corresponding path program 1 times [2023-11-19 07:43:10,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:10,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111553793] [2023-11-19 07:43:10,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:10,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:11,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:43:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:11,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-19 07:43:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:11,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-19 07:43:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:11,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-19 07:43:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:11,825 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:43:11,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:11,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111553793] [2023-11-19 07:43:11,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111553793] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:43:11,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989685193] [2023-11-19 07:43:11,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:11,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:11,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:11,827 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:11,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:43:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:12,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 07:43:12,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:12,325 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:43:12,325 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:43:12,752 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:12,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989685193] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:43:12,753 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:43:12,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 9] total 17 [2023-11-19 07:43:12,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589475612] [2023-11-19 07:43:12,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:43:12,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-19 07:43:12,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:12,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-19 07:43:12,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=205, Unknown=0, NotChecked=0, Total=342 [2023-11-19 07:43:12,756 INFO L87 Difference]: Start difference. First operand 174 states and 219 transitions. Second operand has 19 states, 18 states have (on average 14.277777777777779) internal successors, (257), 18 states have internal predecessors, (257), 8 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2023-11-19 07:43:13,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:13,255 INFO L93 Difference]: Finished difference Result 814 states and 1057 transitions. [2023-11-19 07:43:13,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-19 07:43:13,256 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 14.277777777777779) internal successors, (257), 18 states have internal predecessors, (257), 8 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 129 [2023-11-19 07:43:13,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:13,268 INFO L225 Difference]: With dead ends: 814 [2023-11-19 07:43:13,269 INFO L226 Difference]: Without dead ends: 748 [2023-11-19 07:43:13,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 255 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=526, Invalid=880, Unknown=0, NotChecked=0, Total=1406 [2023-11-19 07:43:13,273 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 457 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:13,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 596 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:43:13,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-11-19 07:43:13,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 416. [2023-11-19 07:43:13,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 382 states have (on average 1.2827225130890052) internal successors, (490), 391 states have internal predecessors, (490), 12 states have call successors, (12), 12 states have call predecessors, (12), 21 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) [2023-11-19 07:43:13,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 525 transitions. [2023-11-19 07:43:13,318 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 525 transitions. Word has length 129 [2023-11-19 07:43:13,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:13,320 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 525 transitions. [2023-11-19 07:43:13,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 14.277777777777779) internal successors, (257), 18 states have internal predecessors, (257), 8 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2023-11-19 07:43:13,321 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 525 transitions. [2023-11-19 07:43:13,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-11-19 07:43:13,331 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:13,331 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:13,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:13,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:13,544 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_module_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:43:13,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:13,545 INFO L85 PathProgramCache]: Analyzing trace with hash -950599307, now seen corresponding path program 2 times [2023-11-19 07:43:13,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:13,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915219515] [2023-11-19 07:43:13,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:13,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:16,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:43:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:16,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-19 07:43:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:16,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-19 07:43:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:16,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-19 07:43:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:16,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-19 07:43:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:16,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-19 07:43:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:16,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-11-19 07:43:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:16,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-19 07:43:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:16,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-11-19 07:43:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:16,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-11-19 07:43:16,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:16,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1365 backedges. 0 proven. 1185 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-19 07:43:16,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:16,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915219515] [2023-11-19 07:43:16,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915219515] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:43:16,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529902504] [2023-11-19 07:43:16,535 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:43:16,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:16,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:16,536 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:16,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:43:17,014 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:43:17,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:43:17,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-19 07:43:17,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:25,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1365 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2023-11-19 07:43:25,164 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:25,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529902504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:25,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:43:25,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 16 [2023-11-19 07:43:25,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008720981] [2023-11-19 07:43:25,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:25,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:43:25,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:25,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:43:25,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:43:25,167 INFO L87 Difference]: Start difference. First operand 416 states and 525 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:43:25,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:25,233 INFO L93 Difference]: Finished difference Result 850 states and 1068 transitions. [2023-11-19 07:43:25,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:43:25,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 291 [2023-11-19 07:43:25,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:25,237 INFO L225 Difference]: With dead ends: 850 [2023-11-19 07:43:25,238 INFO L226 Difference]: Without dead ends: 440 [2023-11-19 07:43:25,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:43:25,240 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 35 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:25,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 73 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:43:25,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2023-11-19 07:43:25,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 416. [2023-11-19 07:43:25,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 382 states have (on average 1.2513089005235603) internal successors, (478), 391 states have internal predecessors, (478), 12 states have call successors, (12), 12 states have call predecessors, (12), 21 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) [2023-11-19 07:43:25,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 513 transitions. [2023-11-19 07:43:25,269 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 513 transitions. Word has length 291 [2023-11-19 07:43:25,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:25,270 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 513 transitions. [2023-11-19 07:43:25,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:43:25,270 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 513 transitions. [2023-11-19 07:43:25,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2023-11-19 07:43:25,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:25,276 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:25,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-19 07:43:25,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:25,488 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_module_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:43:25,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:25,489 INFO L85 PathProgramCache]: Analyzing trace with hash -117939137, now seen corresponding path program 1 times [2023-11-19 07:43:25,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:25,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150006933] [2023-11-19 07:43:25,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:25,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:25,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:28,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:43:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:28,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:43:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:28,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 07:43:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:28,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-19 07:43:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:28,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-19 07:43:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:28,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-11-19 07:43:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:28,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-11-19 07:43:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:28,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-11-19 07:43:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:28,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-19 07:43:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:28,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-11-19 07:43:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:28,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 0 proven. 1240 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-19 07:43:28,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:28,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150006933] [2023-11-19 07:43:28,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150006933] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:43:28,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359020908] [2023-11-19 07:43:28,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:28,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:28,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:28,160 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:28,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:43:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:28,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 2064 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-19 07:43:28,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:29,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 0 proven. 1240 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-19 07:43:29,136 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:43:30,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 0 proven. 1420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:30,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359020908] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:43:30,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:43:30,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 21] total 35 [2023-11-19 07:43:30,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378153480] [2023-11-19 07:43:30,171 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:43:30,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-11-19 07:43:30,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:30,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-11-19 07:43:30,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=530, Invalid=802, Unknown=0, NotChecked=0, Total=1332 [2023-11-19 07:43:30,178 INFO L87 Difference]: Start difference. First operand 416 states and 513 transitions. Second operand has 37 states, 36 states have (on average 15.61111111111111) internal successors, (562), 36 states have internal predecessors, (562), 20 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 20 states have call predecessors, (30), 20 states have call successors, (30) [2023-11-19 07:43:31,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:31,704 INFO L93 Difference]: Finished difference Result 2845 states and 3582 transitions. [2023-11-19 07:43:31,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-11-19 07:43:31,705 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 15.61111111111111) internal successors, (562), 36 states have internal predecessors, (562), 20 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 20 states have call predecessors, (30), 20 states have call successors, (30) Word has length 302 [2023-11-19 07:43:31,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:31,723 INFO L225 Difference]: With dead ends: 2845 [2023-11-19 07:43:31,724 INFO L226 Difference]: Without dead ends: 2608 [2023-11-19 07:43:31,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 686 GetRequests, 607 SyntacticMatches, 1 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=2311, Invalid=4009, Unknown=0, NotChecked=0, Total=6320 [2023-11-19 07:43:31,730 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 1012 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:31,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1012 Valid, 1041 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:43:31,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2608 states. [2023-11-19 07:43:31,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608 to 848. [2023-11-19 07:43:31,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 778 states have (on average 1.2467866323907455) internal successors, (970), 799 states have internal predecessors, (970), 24 states have call successors, (24), 24 states have call predecessors, (24), 45 states have return successors, (47), 24 states have call predecessors, (47), 24 states have call successors, (47) [2023-11-19 07:43:31,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1041 transitions. [2023-11-19 07:43:31,814 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1041 transitions. Word has length 302 [2023-11-19 07:43:31,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:31,815 INFO L495 AbstractCegarLoop]: Abstraction has 848 states and 1041 transitions. [2023-11-19 07:43:31,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 15.61111111111111) internal successors, (562), 36 states have internal predecessors, (562), 20 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 20 states have call predecessors, (30), 20 states have call successors, (30) [2023-11-19 07:43:31,816 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1041 transitions. [2023-11-19 07:43:31,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2023-11-19 07:43:31,832 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:31,833 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:31,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:32,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-19 07:43:32,057 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_module_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:43:32,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:32,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1569175175, now seen corresponding path program 2 times [2023-11-19 07:43:32,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:32,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294098030] [2023-11-19 07:43:32,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:32,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:43:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:43:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 07:43:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-19 07:43:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-19 07:43:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-11-19 07:43:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-11-19 07:43:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-11-19 07:43:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-11-19 07:43:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-11-19 07:43:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-11-19 07:43:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2023-11-19 07:43:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2023-11-19 07:43:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2023-11-19 07:43:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2023-11-19 07:43:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2023-11-19 07:43:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2023-11-19 07:43:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2023-11-19 07:43:40,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2023-11-19 07:43:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2023-11-19 07:43:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 586 [2023-11-19 07:43:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 614 [2023-11-19 07:43:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:40,728 INFO L134 CoverageAnalysis]: Checked inductivity of 6820 backedges. 0 proven. 5896 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-19 07:43:40,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:40,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294098030] [2023-11-19 07:43:40,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294098030] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:43:40,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989069244] [2023-11-19 07:43:40,729 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:43:40,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:43:40,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:40,731 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:43:40,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:43:41,174 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:43:41,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:43:41,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:43:41,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:41,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 35 treesize of output 19 [2023-11-19 07:43:41,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 07:43:41,367 INFO L134 CoverageAnalysis]: Checked inductivity of 6820 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 6622 trivial. 0 not checked. [2023-11-19 07:43:41,367 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:41,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989069244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:41,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:43:41,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [24] total 29 [2023-11-19 07:43:41,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604101327] [2023-11-19 07:43:41,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:41,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:43:41,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:41,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:43:41,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=504, Unknown=0, NotChecked=0, Total=812 [2023-11-19 07:43:41,374 INFO L87 Difference]: Start difference. First operand 848 states and 1041 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:43:41,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:41,445 INFO L93 Difference]: Finished difference Result 863 states and 1060 transitions. [2023-11-19 07:43:41,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:43:41,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 638 [2023-11-19 07:43:41,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:41,446 INFO L225 Difference]: With dead ends: 863 [2023-11-19 07:43:41,447 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:43:41,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 727 GetRequests, 699 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=312, Invalid=558, Unknown=0, NotChecked=0, Total=870 [2023-11-19 07:43:41,450 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 3 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:41,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 63 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:43:41,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:43:41,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:43:41,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:41,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:43:41,453 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 638 [2023-11-19 07:43:41,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:41,453 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:43:41,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:43:41,453 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:43:41,454 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:43:41,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-19 07:43:41,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-19 07:43:41,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_module_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-19 07:43:41,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_module_putErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-19 07:43:41,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:41,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:43:41,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 07:43:41,690 INFO L899 garLoopResultBuilder]: For program point L4891(lines 4891 4901) no Hoare annotation was computed. [2023-11-19 07:43:41,690 INFO L899 garLoopResultBuilder]: For program point __request_module_returnLabel#1(lines 5091 5093) no Hoare annotation was computed. [2023-11-19 07:43:41,690 INFO L899 garLoopResultBuilder]: For program point ldv_initialize_returnLabel#1(lines 5094 5096) no Hoare annotation was computed. [2023-11-19 07:43:41,690 INFO L899 garLoopResultBuilder]: For program point pppox_init_returnLabel#1(lines 4911 4919) no Hoare annotation was computed. [2023-11-19 07:43:41,691 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 4933 4991) no Hoare annotation was computed. [2023-11-19 07:43:41,691 INFO L902 garLoopResultBuilder]: At program point L5065(line 5065) the Hoare annotation is: true [2023-11-19 07:43:41,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 5018) no Hoare annotation was computed. [2023-11-19 07:43:41,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 07:43:41,691 INFO L899 garLoopResultBuilder]: For program point pppox_exit_returnLabel#1(lines 4920 4928) no Hoare annotation was computed. [2023-11-19 07:43:41,692 INFO L899 garLoopResultBuilder]: For program point main_ldv_38482#1(lines 4941 4990) no Hoare annotation was computed. [2023-11-19 07:43:41,692 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 5018) no Hoare annotation was computed. [2023-11-19 07:43:41,692 INFO L899 garLoopResultBuilder]: For program point ldv_try_module_get_returnLabel#1(lines 5010 5027) no Hoare annotation was computed. [2023-11-19 07:43:41,692 INFO L899 garLoopResultBuilder]: For program point L5017(lines 5017 5022) no Hoare annotation was computed. [2023-11-19 07:43:41,692 INFO L899 garLoopResultBuilder]: For program point L4885-2(lines 4885 4890) no Hoare annotation was computed. [2023-11-19 07:43:41,692 INFO L899 garLoopResultBuilder]: For program point L4885(lines 4885 4890) no Hoare annotation was computed. [2023-11-19 07:43:41,692 INFO L899 garLoopResultBuilder]: For program point L4976(lines 4976 4980) no Hoare annotation was computed. [2023-11-19 07:43:41,693 INFO L899 garLoopResultBuilder]: For program point L4877(lines 4877 4883) no Hoare annotation was computed. [2023-11-19 07:43:41,693 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 07:43:41,693 INFO L899 garLoopResultBuilder]: For program point sock_unregister_returnLabel#1(lines 5121 5123) no Hoare annotation was computed. [2023-11-19 07:43:41,693 INFO L899 garLoopResultBuilder]: For program point L5018(line 5018) no Hoare annotation was computed. [2023-11-19 07:43:41,693 INFO L899 garLoopResultBuilder]: For program point L5018-1(line 5018) no Hoare annotation was computed. [2023-11-19 07:43:41,693 INFO L899 garLoopResultBuilder]: For program point L4985(lines 4941 4990) no Hoare annotation was computed. [2023-11-19 07:43:41,694 INFO L895 garLoopResultBuilder]: At program point L5085(line 5085) the Hoare annotation is: false [2023-11-19 07:43:41,694 INFO L899 garLoopResultBuilder]: For program point L5085-1(lines 5081 5089) no Hoare annotation was computed. [2023-11-19 07:43:41,694 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 07:43:41,694 INFO L899 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2023-11-19 07:43:41,694 INFO L899 garLoopResultBuilder]: For program point ldv_try_module_get_1_returnLabel#1(lines 5072 5080) no Hoare annotation was computed. [2023-11-19 07:43:41,694 INFO L899 garLoopResultBuilder]: For program point L4880(lines 4880 4883) no Hoare annotation was computed. [2023-11-19 07:43:41,695 INFO L899 garLoopResultBuilder]: For program point L4971(lines 4941 4990) no Hoare annotation was computed. [2023-11-19 07:43:41,695 INFO L899 garLoopResultBuilder]: For program point main_ldv_38480#1(lines 4941 4990) no Hoare annotation was computed. [2023-11-19 07:43:41,695 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 07:43:41,695 INFO L899 garLoopResultBuilder]: For program point L4897(lines 4897 4900) no Hoare annotation was computed. [2023-11-19 07:43:41,695 INFO L899 garLoopResultBuilder]: For program point ldv_undefined_int_returnLabel#1(lines 5098 5100) no Hoare annotation was computed. [2023-11-19 07:43:41,695 INFO L899 garLoopResultBuilder]: For program point L4947(lines 4947 4950) no Hoare annotation was computed. [2023-11-19 07:43:41,696 INFO L899 garLoopResultBuilder]: For program point L5013(lines 5013 5024) no Hoare annotation was computed. [2023-11-19 07:43:41,696 INFO L899 garLoopResultBuilder]: For program point pppox_create_returnLabel#1(lines 4872 4909) no Hoare annotation was computed. [2023-11-19 07:43:41,696 INFO L899 garLoopResultBuilder]: For program point L4906(lines 4875 4908) no Hoare annotation was computed. [2023-11-19 07:43:41,696 INFO L899 garLoopResultBuilder]: For program point sock_register_returnLabel#1(lines 5118 5120) no Hoare annotation was computed. [2023-11-19 07:43:41,696 INFO L899 garLoopResultBuilder]: For program point main_case_0#1(lines 4956 4970) no Hoare annotation was computed. [2023-11-19 07:43:41,696 INFO L899 garLoopResultBuilder]: For program point L5063(lines 5063 5068) no Hoare annotation was computed. [2023-11-19 07:43:41,697 INFO L899 garLoopResultBuilder]: For program point L5063-1(lines 5060 5071) no Hoare annotation was computed. [2023-11-19 07:43:41,697 INFO L899 garLoopResultBuilder]: For program point L4956(lines 4956 4970) no Hoare annotation was computed. [2023-11-19 07:43:41,697 INFO L899 garLoopResultBuilder]: For program point ldv_module_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 5038) no Hoare annotation was computed. [2023-11-19 07:43:41,697 INFO L899 garLoopResultBuilder]: For program point ldv_module_putEXIT(lines 5028 5043) no Hoare annotation was computed. [2023-11-19 07:43:41,697 INFO L899 garLoopResultBuilder]: For program point L5038(line 5038) no Hoare annotation was computed. [2023-11-19 07:43:41,697 INFO L902 garLoopResultBuilder]: At program point L5034(line 5034) the Hoare annotation is: true [2023-11-19 07:43:41,698 INFO L899 garLoopResultBuilder]: For program point ldv_module_putErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 5038) no Hoare annotation was computed. [2023-11-19 07:43:41,698 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 5028 5043) the Hoare annotation is: true [2023-11-19 07:43:41,698 INFO L899 garLoopResultBuilder]: For program point L5031(lines 5031 5040) no Hoare annotation was computed. [2023-11-19 07:43:41,698 INFO L899 garLoopResultBuilder]: For program point L5032-1(lines 5032 5037) no Hoare annotation was computed. [2023-11-19 07:43:41,698 INFO L899 garLoopResultBuilder]: For program point L5032(lines 5032 5037) no Hoare annotation was computed. [2023-11-19 07:43:41,698 INFO L899 garLoopResultBuilder]: For program point L5031-2(lines 5028 5043) no Hoare annotation was computed. [2023-11-19 07:43:41,699 INFO L899 garLoopResultBuilder]: For program point ldv_blast_assertEXIT(lines 4992 4997) no Hoare annotation was computed. [2023-11-19 07:43:41,699 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 4992 4997) the Hoare annotation is: true [2023-11-19 07:43:41,699 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-19 07:43:41,699 INFO L899 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2023-11-19 07:43:41,699 INFO L899 garLoopResultBuilder]: For program point ldv_blast_assertFINAL(lines 4992 4997) no Hoare annotation was computed. [2023-11-19 07:43:41,702 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:41,704 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:43:41,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:43:41 BoogieIcfgContainer [2023-11-19 07:43:41,709 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:43:41,709 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:43:41,710 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:43:41,710 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:43:41,710 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:06" (3/4) ... [2023-11-19 07:43:41,713 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:43:41,717 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_module_put [2023-11-19 07:43:41,718 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_blast_assert [2023-11-19 07:43:41,725 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-19 07:43:41,726 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-19 07:43:41,726 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:43:41,727 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:43:41,839 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:43:41,839 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:43:41,840 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:43:41,840 INFO L158 Benchmark]: Toolchain (without parser) took 38021.24ms. Allocated memory was 172.0MB in the beginning and 880.8MB in the end (delta: 708.8MB). Free memory was 118.4MB in the beginning and 471.1MB in the end (delta: -352.8MB). Peak memory consumption was 356.6MB. Max. memory is 16.1GB. [2023-11-19 07:43:41,841 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 172.0MB. Free memory was 138.8MB in the beginning and 138.8MB in the end (delta: 43.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:43:41,841 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1533.58ms. Allocated memory was 172.0MB in the beginning and 232.8MB in the end (delta: 60.8MB). Free memory was 117.9MB in the beginning and 164.7MB in the end (delta: -46.8MB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB. [2023-11-19 07:43:41,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.16ms. Allocated memory is still 232.8MB. Free memory was 164.7MB in the beginning and 161.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:43:41,842 INFO L158 Benchmark]: Boogie Preprocessor took 103.15ms. Allocated memory is still 232.8MB. Free memory was 161.5MB in the beginning and 159.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:43:41,843 INFO L158 Benchmark]: RCFGBuilder took 728.50ms. Allocated memory is still 232.8MB. Free memory was 159.4MB in the beginning and 140.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:43:41,843 INFO L158 Benchmark]: TraceAbstraction took 35413.48ms. Allocated memory was 232.8MB in the beginning and 880.8MB in the end (delta: 648.0MB). Free memory was 139.5MB in the beginning and 477.4MB in the end (delta: -337.9MB). Peak memory consumption was 309.1MB. Max. memory is 16.1GB. [2023-11-19 07:43:41,843 INFO L158 Benchmark]: Witness Printer took 130.27ms. Allocated memory is still 880.8MB. Free memory was 477.4MB in the beginning and 471.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:43:41,846 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 172.0MB. Free memory was 138.8MB in the beginning and 138.8MB in the end (delta: 43.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1533.58ms. Allocated memory was 172.0MB in the beginning and 232.8MB in the end (delta: 60.8MB). Free memory was 117.9MB in the beginning and 164.7MB in the end (delta: -46.8MB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.16ms. Allocated memory is still 232.8MB. Free memory was 164.7MB in the beginning and 161.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 103.15ms. Allocated memory is still 232.8MB. Free memory was 161.5MB in the beginning and 159.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 728.50ms. Allocated memory is still 232.8MB. Free memory was 159.4MB in the beginning and 140.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 35413.48ms. Allocated memory was 232.8MB in the beginning and 880.8MB in the end (delta: 648.0MB). Free memory was 139.5MB in the beginning and 477.4MB in the end (delta: -337.9MB). Peak memory consumption was 309.1MB. Max. memory is 16.1GB. * Witness Printer took 130.27ms. Allocated memory is still 880.8MB. Free memory was 477.4MB in the beginning and 471.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 4823]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4823-4824] - GenericResultAtLocation [Line: 4826]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4826-4827] - GenericResultAtLocation [Line: 4830]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4830-4831] - GenericResultAtLocation [Line: 4833]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4833-4834] - GenericResultAtLocation [Line: 4837]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4837-4838] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 5018]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 5018]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 5038]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 5038]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 57 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 35.3s, OverallIterations: 10, TraceHistogramMax: 23, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2008 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2007 mSDsluCounter, 2715 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2236 mSDsCounter, 322 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 504 IncrementalHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 322 mSolverCounterUnsat, 479 mSDtfsCounter, 504 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2233 GetRequests, 2038 SyntacticMatches, 3 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1833 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=848occurred in iteration=9, InterpolantAutomatonStates: 152, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 2309 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 107 PreInvPairs, 108 NumberOfFragments, 5 HoareAnnotationTreeSize, 107 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 27.0s InterpolantComputationTime, 3051 NumberOfCodeBlocks, 2165 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3521 ConstructedInterpolants, 0 QuantifiedInterpolants, 25617 SizeOfPredicates, 11 NumberOfNonLiveVariables, 4064 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 19 InterpolantComputations, 7 PerfectInterpolantSequences, 9725/21404 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:43:41,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e79900-1e40-4980-9b30-b650fd302214/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE