./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/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_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cac2372de612a50e6cea0e2672ab51101a6ffa3bb2603a06b5c5aa59090db116 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:44:05,532 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:44:05,626 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:44:05,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:44:05,644 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:44:05,690 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:44:05,691 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:44:05,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:44:05,693 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:44:05,698 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:44:05,699 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:44:05,700 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:44:05,700 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:44:05,702 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:44:05,703 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:44:05,703 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:44:05,704 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:44:05,704 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:44:05,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:44:05,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:44:05,725 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:44:05,726 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:44:05,726 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:44:05,727 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:44:05,727 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:44:05,727 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:44:05,728 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:44:05,728 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:44:05,729 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:44:05,729 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:44:05,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:44:05,730 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:44:05,730 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:44:05,731 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:44:05,731 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:44:05,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:44:05,734 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:44:05,734 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:44:05,734 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:44:05,735 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:44:05,735 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:44:05,735 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_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cac2372de612a50e6cea0e2672ab51101a6ffa3bb2603a06b5c5aa59090db116 [2023-11-19 07:44:06,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:44:06,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:44:06,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:44:06,114 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:44:06,114 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:44:06,116 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i [2023-11-19 07:44:09,200 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:44:09,559 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:44:09,559 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i [2023-11-19 07:44:09,581 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/data/f0da650c1/bb4cf23d344447e6aa9528b6e756faa0/FLAG65a14dc24 [2023-11-19 07:44:09,610 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/data/f0da650c1/bb4cf23d344447e6aa9528b6e756faa0 [2023-11-19 07:44:09,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:44:09,618 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:44:09,622 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:44:09,623 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:44:09,630 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:44:09,631 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:44:09" (1/1) ... [2023-11-19 07:44:09,632 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7160fbad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:09, skipping insertion in model container [2023-11-19 07:44:09,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:44:09" (1/1) ... [2023-11-19 07:44:09,713 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:44:10,194 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:44:10,219 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:44:10,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:44:10,369 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:44:10,377 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:44:10,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:10 WrapperNode [2023-11-19 07:44:10,378 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:44:10,379 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:44:10,380 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:44:10,380 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:44:10,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:10" (1/1) ... [2023-11-19 07:44:10,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:10" (1/1) ... [2023-11-19 07:44:10,480 INFO L138 Inliner]: procedures = 166, calls = 73, calls flagged for inlining = 25, calls inlined = 19, statements flattened = 127 [2023-11-19 07:44:10,481 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:44:10,481 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:44:10,482 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:44:10,482 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:44:10,497 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:10" (1/1) ... [2023-11-19 07:44:10,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:10" (1/1) ... [2023-11-19 07:44:10,505 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:10" (1/1) ... [2023-11-19 07:44:10,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:10" (1/1) ... [2023-11-19 07:44:10,528 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:10" (1/1) ... [2023-11-19 07:44:10,547 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:10" (1/1) ... [2023-11-19 07:44:10,550 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:10" (1/1) ... [2023-11-19 07:44:10,552 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:10" (1/1) ... [2023-11-19 07:44:10,556 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:44:10,565 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:44:10,566 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:44:10,566 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:44:10,567 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:10" (1/1) ... [2023-11-19 07:44:10,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:44:10,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:10,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:44:10,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:44:10,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:44:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2023-11-19 07:44:10,635 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2023-11-19 07:44:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:44:10,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:44:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2023-11-19 07:44:10,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2023-11-19 07:44:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:44:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:44:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:44:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:44:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:44:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:44:10,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:44:10,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:44:10,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:44:10,795 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:44:10,797 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:44:11,104 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:44:11,127 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:44:11,127 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:44:11,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:11 BoogieIcfgContainer [2023-11-19 07:44:11,132 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:44:11,178 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:44:11,178 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:44:11,181 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:44:11,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:44:09" (1/3) ... [2023-11-19 07:44:11,182 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31bfd92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:44:11, skipping insertion in model container [2023-11-19 07:44:11,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:10" (2/3) ... [2023-11-19 07:44:11,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31bfd92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:44:11, skipping insertion in model container [2023-11-19 07:44:11,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:11" (3/3) ... [2023-11-19 07:44:11,185 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test22_3-1.i [2023-11-19 07:44:11,212 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:44:11,213 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-19 07:44:11,274 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:44:11,282 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;@1e7ab809, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:44:11,282 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-19 07:44:11,288 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 47 states have internal predecessors, (55), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:44:11,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 07:44:11,299 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:11,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:11,301 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:44:11,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:11,309 INFO L85 PathProgramCache]: Analyzing trace with hash -846947467, now seen corresponding path program 1 times [2023-11-19 07:44:11,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:11,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394703801] [2023-11-19 07:44:11,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:11,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:11,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:44:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:11,783 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 07:44:11,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:11,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394703801] [2023-11-19 07:44:11,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394703801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:11,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:44:11,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:44:11,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428511986] [2023-11-19 07:44:11,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:11,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:44:11,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:11,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:44:11,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:44:11,832 INFO L87 Difference]: Start difference. First operand has 54 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 47 states have internal predecessors, (55), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 4 states have internal predecessors, (10), 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 07:44:12,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:12,068 INFO L93 Difference]: Finished difference Result 105 states and 124 transitions. [2023-11-19 07:44:12,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:44:12,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 4 states have internal predecessors, (10), 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 12 [2023-11-19 07:44:12,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:12,081 INFO L225 Difference]: With dead ends: 105 [2023-11-19 07:44:12,081 INFO L226 Difference]: Without dead ends: 67 [2023-11-19 07:44:12,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:44:12,088 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 28 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:12,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 194 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:44:12,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-19 07:44:12,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 54. [2023-11-19 07:44:12,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 47 states have internal predecessors, (55), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:44:12,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2023-11-19 07:44:12,135 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 12 [2023-11-19 07:44:12,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:12,136 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2023-11-19 07:44:12,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 4 states have internal predecessors, (10), 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 07:44:12,136 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2023-11-19 07:44:12,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 07:44:12,137 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:12,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:12,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:44:12,138 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:44:12,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:12,139 INFO L85 PathProgramCache]: Analyzing trace with hash 895862868, now seen corresponding path program 1 times [2023-11-19 07:44:12,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:12,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665057186] [2023-11-19 07:44:12,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:12,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:12,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:44:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:12,377 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 07:44:12,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:12,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665057186] [2023-11-19 07:44:12,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665057186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:12,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:44:12,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:44:12,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658389537] [2023-11-19 07:44:12,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:12,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:44:12,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:12,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:44:12,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:44:12,382 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 07:44:12,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:12,510 INFO L93 Difference]: Finished difference Result 96 states and 111 transitions. [2023-11-19 07:44:12,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:44:12,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 12 [2023-11-19 07:44:12,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:12,513 INFO L225 Difference]: With dead ends: 96 [2023-11-19 07:44:12,513 INFO L226 Difference]: Without dead ends: 68 [2023-11-19 07:44:12,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:44:12,516 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 26 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:12,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 144 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:44:12,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-19 07:44:12,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 56. [2023-11-19 07:44:12,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 49 states have internal predecessors, (57), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:44:12,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2023-11-19 07:44:12,528 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 12 [2023-11-19 07:44:12,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:12,528 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2023-11-19 07:44:12,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 07:44:12,529 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2023-11-19 07:44:12,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 07:44:12,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:12,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:12,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:44:12,531 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:44:12,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:12,532 INFO L85 PathProgramCache]: Analyzing trace with hash 366281122, now seen corresponding path program 1 times [2023-11-19 07:44:12,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:12,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387134778] [2023-11-19 07:44:12,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:12,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:12,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:44:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:12,793 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 07:44:12,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:12,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387134778] [2023-11-19 07:44:12,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387134778] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:12,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:44:12,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:44:12,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188601399] [2023-11-19 07:44:12,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:12,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:44:12,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:12,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:44:12,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:44:12,808 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 5 states have internal predecessors, (14), 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 07:44:12,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:12,991 INFO L93 Difference]: Finished difference Result 100 states and 117 transitions. [2023-11-19 07:44:12,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:44:12,993 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 5 states have internal predecessors, (14), 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 16 [2023-11-19 07:44:12,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:13,002 INFO L225 Difference]: With dead ends: 100 [2023-11-19 07:44:13,003 INFO L226 Difference]: Without dead ends: 69 [2023-11-19 07:44:13,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:44:13,007 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 30 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:13,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 217 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:44:13,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-19 07:44:13,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 59. [2023-11-19 07:44:13,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.297872340425532) internal successors, (61), 52 states have internal predecessors, (61), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:44:13,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 69 transitions. [2023-11-19 07:44:13,033 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 69 transitions. Word has length 16 [2023-11-19 07:44:13,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:13,034 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 69 transitions. [2023-11-19 07:44:13,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 5 states have internal predecessors, (14), 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 07:44:13,034 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 69 transitions. [2023-11-19 07:44:13,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 07:44:13,035 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:13,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:13,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:44:13,036 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:44:13,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:13,037 INFO L85 PathProgramCache]: Analyzing trace with hash 495363841, now seen corresponding path program 1 times [2023-11-19 07:44:13,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:13,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055815244] [2023-11-19 07:44:13,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:13,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:13,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:44:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:13,225 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 07:44:13,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:13,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055815244] [2023-11-19 07:44:13,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055815244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:13,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:44:13,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:44:13,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293208248] [2023-11-19 07:44:13,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:13,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:44:13,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:13,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:44:13,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:44:13,234 INFO L87 Difference]: Start difference. First operand 59 states and 69 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 4 states have internal predecessors, (14), 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 07:44:13,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:13,361 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2023-11-19 07:44:13,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:44:13,362 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 4 states have internal predecessors, (14), 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 16 [2023-11-19 07:44:13,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:13,365 INFO L225 Difference]: With dead ends: 101 [2023-11-19 07:44:13,365 INFO L226 Difference]: Without dead ends: 60 [2023-11-19 07:44:13,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:44:13,378 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 18 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:13,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 181 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:44:13,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-19 07:44:13,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2023-11-19 07:44:13,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 44 states have (on average 1.25) internal successors, (55), 49 states have internal predecessors, (55), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:44:13,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2023-11-19 07:44:13,393 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 16 [2023-11-19 07:44:13,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:13,394 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2023-11-19 07:44:13,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 4 states have internal predecessors, (14), 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 07:44:13,394 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2023-11-19 07:44:13,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 07:44:13,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:13,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:13,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:44:13,397 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:44:13,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:13,398 INFO L85 PathProgramCache]: Analyzing trace with hash -835975854, now seen corresponding path program 1 times [2023-11-19 07:44:13,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:13,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318045715] [2023-11-19 07:44:13,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:13,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:13,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:44:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:13,632 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 07:44:13,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:13,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318045715] [2023-11-19 07:44:13,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318045715] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:13,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:44:13,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:44:13,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186759075] [2023-11-19 07:44:13,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:13,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:44:13,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:13,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:44:13,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:44:13,636 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:44:13,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:13,864 INFO L93 Difference]: Finished difference Result 90 states and 101 transitions. [2023-11-19 07:44:13,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:44:13,865 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-19 07:44:13,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:13,866 INFO L225 Difference]: With dead ends: 90 [2023-11-19 07:44:13,866 INFO L226 Difference]: Without dead ends: 56 [2023-11-19 07:44:13,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:44:13,868 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 35 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:13,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 261 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:44:13,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-19 07:44:13,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2023-11-19 07:44:13,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 44 states have internal predecessors, (49), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:44:13,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2023-11-19 07:44:13,874 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 18 [2023-11-19 07:44:13,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:13,874 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2023-11-19 07:44:13,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:44:13,875 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2023-11-19 07:44:13,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 07:44:13,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:13,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:13,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:44:13,881 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:44:13,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:13,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1292786891, now seen corresponding path program 1 times [2023-11-19 07:44:13,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:13,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541178940] [2023-11-19 07:44:13,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:13,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:13,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:44:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:14,029 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 07:44:14,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:14,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541178940] [2023-11-19 07:44:14,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541178940] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:14,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:44:14,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:44:14,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462330274] [2023-11-19 07:44:14,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:14,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:44:14,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:14,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:44:14,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:44:14,034 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 6 states have internal predecessors, (16), 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 07:44:14,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:14,203 INFO L93 Difference]: Finished difference Result 86 states and 96 transitions. [2023-11-19 07:44:14,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:44:14,204 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 6 states have internal predecessors, (16), 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 18 [2023-11-19 07:44:14,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:14,205 INFO L225 Difference]: With dead ends: 86 [2023-11-19 07:44:14,205 INFO L226 Difference]: Without dead ends: 54 [2023-11-19 07:44:14,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:44:14,207 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 28 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:14,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 194 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:44:14,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-19 07:44:14,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2023-11-19 07:44:14,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 43 states have internal predecessors, (48), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:44:14,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2023-11-19 07:44:14,213 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 18 [2023-11-19 07:44:14,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:14,214 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2023-11-19 07:44:14,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 6 states have internal predecessors, (16), 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 07:44:14,214 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2023-11-19 07:44:14,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 07:44:14,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:14,215 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] [2023-11-19 07:44:14,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:44:14,216 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:44:14,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:14,217 INFO L85 PathProgramCache]: Analyzing trace with hash 259861478, now seen corresponding path program 1 times [2023-11-19 07:44:14,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:14,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263609007] [2023-11-19 07:44:14,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:14,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:14,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:44:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:14,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:44:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:14,358 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 07:44:14,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:14,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263609007] [2023-11-19 07:44:14,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263609007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:14,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:44:14,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:44:14,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44750170] [2023-11-19 07:44:14,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:14,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:44:14,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:14,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:44:14,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:44:14,361 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:44:14,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:14,475 INFO L93 Difference]: Finished difference Result 97 states and 107 transitions. [2023-11-19 07:44:14,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:44:14,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2023-11-19 07:44:14,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:14,476 INFO L225 Difference]: With dead ends: 97 [2023-11-19 07:44:14,477 INFO L226 Difference]: Without dead ends: 57 [2023-11-19 07:44:14,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:44:14,479 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 26 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:14,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 114 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:44:14,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-19 07:44:14,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2023-11-19 07:44:14,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.225) internal successors, (49), 44 states have internal predecessors, (49), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:44:14,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2023-11-19 07:44:14,496 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 23 [2023-11-19 07:44:14,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:14,497 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2023-11-19 07:44:14,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:44:14,497 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2023-11-19 07:44:14,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 07:44:14,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:14,500 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] [2023-11-19 07:44:14,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:44:14,501 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:44:14,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:14,501 INFO L85 PathProgramCache]: Analyzing trace with hash 451023015, now seen corresponding path program 1 times [2023-11-19 07:44:14,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:14,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962439006] [2023-11-19 07:44:14,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:14,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:14,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:44:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:14,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:44:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:14,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:14,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:14,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962439006] [2023-11-19 07:44:14,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962439006] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:44:14,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362342436] [2023-11-19 07:44:14,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:14,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:14,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:14,776 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:44:14,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:44:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:14,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 90 conjunts are in the unsatisfiable core [2023-11-19 07:44:14,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:15,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:44:15,200 WARN L876 $PredicateComparison]: unable to prove that (exists ((LDV_INIT_LIST_HEAD_~list.offset Int)) (and (= |c_#memory_int| (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (select |c_#memory_int| |c_LDV_INIT_LIST_HEAD_#in~list.base|)) (.cse1 (+ LDV_INIT_LIST_HEAD_~list.offset 4))) (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) LDV_INIT_LIST_HEAD_~list.offset (select .cse0 LDV_INIT_LIST_HEAD_~list.offset)) .cse1 (select .cse0 .cse1))))) (<= LDV_INIT_LIST_HEAD_~list.offset |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) is different from true [2023-11-19 07:44:15,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:44:15,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:44:15,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 11 [2023-11-19 07:44:15,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:44:15,399 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:44:15,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362342436] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:15,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:44:15,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 18 [2023-11-19 07:44:15,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807366594] [2023-11-19 07:44:15,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:15,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:44:15,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:15,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:44:15,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=234, Unknown=1, NotChecked=30, Total=306 [2023-11-19 07:44:15,401 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 12 states have internal predecessors, (20), 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 07:44:15,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:15,726 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2023-11-19 07:44:15,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-19 07:44:15,727 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 12 states have internal predecessors, (20), 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) Word has length 24 [2023-11-19 07:44:15,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:15,729 INFO L225 Difference]: With dead ends: 59 [2023-11-19 07:44:15,729 INFO L226 Difference]: Without dead ends: 58 [2023-11-19 07:44:15,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=436, Unknown=1, NotChecked=42, Total=552 [2023-11-19 07:44:15,731 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 30 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 83 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:15,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 279 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 203 Invalid, 0 Unknown, 83 Unchecked, 0.2s Time] [2023-11-19 07:44:15,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-19 07:44:15,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2023-11-19 07:44:15,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 40 states have (on average 1.2) internal successors, (48), 43 states have internal predecessors, (48), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:44:15,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2023-11-19 07:44:15,748 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 24 [2023-11-19 07:44:15,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:15,749 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2023-11-19 07:44:15,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 12 states have internal predecessors, (20), 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 07:44:15,749 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2023-11-19 07:44:15,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 07:44:15,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:15,754 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] [2023-11-19 07:44:15,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:44:15,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 07:44:15,964 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:44:15,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:15,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1096811657, now seen corresponding path program 1 times [2023-11-19 07:44:15,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:15,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912967505] [2023-11-19 07:44:15,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:15,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:16,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:44:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:16,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:44:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:16,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:16,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:16,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912967505] [2023-11-19 07:44:16,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912967505] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:44:16,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96090170] [2023-11-19 07:44:16,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:16,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:16,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:16,183 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:44:16,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:44:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:16,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 90 conjunts are in the unsatisfiable core [2023-11-19 07:44:16,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:16,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:44:16,531 WARN L876 $PredicateComparison]: unable to prove that (exists ((LDV_INIT_LIST_HEAD_~list.offset Int)) (and (= |c_#memory_int| (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (select |c_#memory_int| |c_LDV_INIT_LIST_HEAD_#in~list.base|)) (.cse1 (+ LDV_INIT_LIST_HEAD_~list.offset 4))) (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) LDV_INIT_LIST_HEAD_~list.offset (select .cse0 LDV_INIT_LIST_HEAD_~list.offset)) .cse1 (select .cse0 .cse1))))) (<= LDV_INIT_LIST_HEAD_~list.offset |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) is different from true [2023-11-19 07:44:16,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:44:16,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:44:16,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 11 [2023-11-19 07:44:16,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:44:16,691 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:44:16,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96090170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:16,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:44:16,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 18 [2023-11-19 07:44:16,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852467269] [2023-11-19 07:44:16,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:16,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:44:16,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:16,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:44:16,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=234, Unknown=1, NotChecked=30, Total=306 [2023-11-19 07:44:16,694 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 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 07:44:16,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:16,992 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2023-11-19 07:44:16,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:44:16,993 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 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) Word has length 25 [2023-11-19 07:44:16,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:16,994 INFO L225 Difference]: With dead ends: 58 [2023-11-19 07:44:16,995 INFO L226 Difference]: Without dead ends: 57 [2023-11-19 07:44:16,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=436, Unknown=1, NotChecked=42, Total=552 [2023-11-19 07:44:16,996 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 27 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:16,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 282 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 193 Invalid, 0 Unknown, 82 Unchecked, 0.2s Time] [2023-11-19 07:44:16,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-19 07:44:17,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 49. [2023-11-19 07:44:17,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 40 states have (on average 1.175) internal successors, (47), 42 states have internal predecessors, (47), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:44:17,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2023-11-19 07:44:17,003 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 25 [2023-11-19 07:44:17,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:17,004 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2023-11-19 07:44:17,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 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 07:44:17,004 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2023-11-19 07:44:17,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 07:44:17,005 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:17,005 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 07:44:17,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:44:17,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:17,227 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:44:17,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:17,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1913158811, now seen corresponding path program 1 times [2023-11-19 07:44:17,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:17,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135437775] [2023-11-19 07:44:17,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:17,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:17,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:44:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:17,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:44:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:17,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:44:17,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:17,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135437775] [2023-11-19 07:44:17,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135437775] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:17,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:44:17,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:44:17,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128935756] [2023-11-19 07:44:17,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:17,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:44:17,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:17,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:44:17,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:44:17,408 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:44:17,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:17,621 INFO L93 Difference]: Finished difference Result 77 states and 85 transitions. [2023-11-19 07:44:17,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:44:17,622 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2023-11-19 07:44:17,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:17,623 INFO L225 Difference]: With dead ends: 77 [2023-11-19 07:44:17,623 INFO L226 Difference]: Without dead ends: 55 [2023-11-19 07:44:17,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:44:17,624 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 43 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:17,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 156 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:44:17,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-19 07:44:17,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2023-11-19 07:44:17,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 40 states have (on average 1.15) internal successors, (46), 42 states have internal predecessors, (46), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:44:17,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2023-11-19 07:44:17,631 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 30 [2023-11-19 07:44:17,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:17,631 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2023-11-19 07:44:17,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:44:17,631 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2023-11-19 07:44:17,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 07:44:17,632 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:17,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:17,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:44:17,633 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:44:17,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:17,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1920244181, now seen corresponding path program 1 times [2023-11-19 07:44:17,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:17,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927675024] [2023-11-19 07:44:17,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:17,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:17,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:44:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:17,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:44:17,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:17,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:17,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:17,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927675024] [2023-11-19 07:44:17,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927675024] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:44:17,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312475703] [2023-11-19 07:44:17,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:17,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:44:17,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:17,838 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:44:17,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9076bf53-65fe-4e2c-ae41-a2d9f6a1a0f8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:44:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:17,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 144 conjunts are in the unsatisfiable core [2023-11-19 07:44:17,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:44:18,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:44:18,200 WARN L876 $PredicateComparison]: unable to prove that (exists ((LDV_INIT_LIST_HEAD_~list.offset Int)) (and (= |c_#memory_int| (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (select |c_#memory_int| |c_LDV_INIT_LIST_HEAD_#in~list.base|)) (.cse1 (+ LDV_INIT_LIST_HEAD_~list.offset 4))) (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) LDV_INIT_LIST_HEAD_~list.offset (select .cse0 LDV_INIT_LIST_HEAD_~list.offset)) .cse1 (select .cse0 .cse1))))) (<= LDV_INIT_LIST_HEAD_~list.offset |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) is different from true [2023-11-19 07:44:18,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:44:18,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:44:18,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 11 [2023-11-19 07:44:18,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2023-11-19 07:44:18,601 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 15 treesize of output 7 [2023-11-19 07:44:18,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:18,631 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:44:59,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312475703] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:44:59,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:44:59,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 19] total 24 [2023-11-19 07:44:59,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368436364] [2023-11-19 07:44:59,873 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:44:59,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-19 07:44:59,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:59,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-19 07:44:59,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=952, Unknown=18, NotChecked=62, Total=1122 [2023-11-19 07:44:59,876 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand has 24 states, 23 states have (on average 2.4347826086956523) internal successors, (56), 19 states have internal predecessors, (56), 4 states have call successors, (6), 6 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4)