./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme --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 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:59:20,170 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:59:20,287 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 11:59:20,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:59:20,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:59:20,334 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:59:20,334 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:59:20,335 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:59:20,336 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:59:20,341 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:59:20,341 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:59:20,341 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:59:20,342 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:59:20,344 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:59:20,344 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:59:20,345 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:59:20,345 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:59:20,346 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:59:20,346 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:59:20,346 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:59:20,347 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:59:20,347 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:59:20,349 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:59:20,349 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:59:20,350 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:59:20,350 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:59:20,350 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:59:20,351 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:59:20,351 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:59:20,352 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:59:20,353 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:59:20,353 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:59:20,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:59:20,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:59:20,354 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:59:20,354 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:59:20,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:59:20,355 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:59:20,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:59:20,355 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:59:20,356 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:59:20,356 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:59:20,356 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:59:20,356 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:59:20,357 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_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 [2023-11-26 11:59:20,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:59:20,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:59:20,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:59:20,666 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:59:20,666 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:59:20,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2023-11-26 11:59:23,839 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:59:24,197 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:59:24,197 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2023-11-26 11:59:24,215 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/data/561899071/78cdbf233e74420286614ccb206f3e0f/FLAG68f5d5e45 [2023-11-26 11:59:24,408 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/data/561899071/78cdbf233e74420286614ccb206f3e0f [2023-11-26 11:59:24,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:59:24,412 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:59:24,414 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:59:24,414 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:59:24,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:59:24,421 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:59:24" (1/1) ... [2023-11-26 11:59:24,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f246049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:24, skipping insertion in model container [2023-11-26 11:59:24,422 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:59:24" (1/1) ... [2023-11-26 11:59:24,473 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:59:24,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:59:24,980 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:59:25,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:59:25,125 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:59:25,133 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:59:25,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:25 WrapperNode [2023-11-26 11:59:25,133 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:59:25,135 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:59:25,135 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:59:25,135 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:59:25,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:25" (1/1) ... [2023-11-26 11:59:25,184 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:25" (1/1) ... [2023-11-26 11:59:25,210 INFO L138 Inliner]: procedures = 164, calls = 73, calls flagged for inlining = 21, calls inlined = 3, statements flattened = 51 [2023-11-26 11:59:25,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:59:25,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:59:25,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:59:25,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:59:25,224 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:25" (1/1) ... [2023-11-26 11:59:25,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:25" (1/1) ... [2023-11-26 11:59:25,244 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:25" (1/1) ... [2023-11-26 11:59:25,261 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2023-11-26 11:59:25,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:25" (1/1) ... [2023-11-26 11:59:25,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:25" (1/1) ... [2023-11-26 11:59:25,273 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:25" (1/1) ... [2023-11-26 11:59:25,276 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:25" (1/1) ... [2023-11-26 11:59:25,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:25" (1/1) ... [2023-11-26 11:59:25,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:25" (1/1) ... [2023-11-26 11:59:25,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:59:25,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:59:25,284 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:59:25,284 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:59:25,285 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:25" (1/1) ... [2023-11-26 11:59:25,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:59:25,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:25,333 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:59:25,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:59:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-26 11:59:25,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-26 11:59:25,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:59:25,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:59:25,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 11:59:25,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 11:59:25,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 11:59:25,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 11:59:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:59:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-26 11:59:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-26 11:59:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:59:25,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:59:25,532 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:59:25,534 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:59:25,756 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:59:25,783 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:59:25,783 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 11:59:25,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:59:25 BoogieIcfgContainer [2023-11-26 11:59:25,784 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:59:25,787 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:59:25,787 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:59:25,805 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:59:25,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:59:24" (1/3) ... [2023-11-26 11:59:25,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69786ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:59:25, skipping insertion in model container [2023-11-26 11:59:25,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:25" (2/3) ... [2023-11-26 11:59:25,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69786ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:59:25, skipping insertion in model container [2023-11-26 11:59:25,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:59:25" (3/3) ... [2023-11-26 11:59:25,808 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test18.i [2023-11-26 11:59:25,826 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:59:25,826 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-26 11:59:25,877 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:59:25,883 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;@1b181296, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:59:25,883 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-26 11:59:25,889 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 24 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:59:25,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 11:59:25,903 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:25,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:25,905 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-26 11:59:25,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:25,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1455817046, now seen corresponding path program 1 times [2023-11-26 11:59:25,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:25,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179823948] [2023-11-26 11:59:25,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:25,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:26,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:59:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:26,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:26,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:26,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179823948] [2023-11-26 11:59:26,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179823948] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:26,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:26,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:26,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16743942] [2023-11-26 11:59:26,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:26,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:26,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:26,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:26,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:26,402 INFO L87 Difference]: Start difference. First operand has 28 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 24 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-26 11:59:26,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:26,499 INFO L93 Difference]: Finished difference Result 58 states and 76 transitions. [2023-11-26 11:59:26,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:59:26,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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 10 [2023-11-26 11:59:26,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:26,511 INFO L225 Difference]: With dead ends: 58 [2023-11-26 11:59:26,511 INFO L226 Difference]: Without dead ends: 42 [2023-11-26 11:59:26,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:26,518 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 41 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:26,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 70 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:59:26,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-26 11:59:26,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 31. [2023-11-26 11:59:26,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 26 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:59:26,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2023-11-26 11:59:26,563 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 10 [2023-11-26 11:59:26,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:26,563 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2023-11-26 11:59:26,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-26 11:59:26,564 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2023-11-26 11:59:26,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-26 11:59:26,565 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:26,566 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:26,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:59:26,566 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-26 11:59:26,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:26,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1887432492, now seen corresponding path program 1 times [2023-11-26 11:59:26,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:26,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494078885] [2023-11-26 11:59:26,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:26,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:26,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:59:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:26,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:59:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:26,858 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:59:26,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:26,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494078885] [2023-11-26 11:59:26,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494078885] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:26,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:26,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:59:26,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017911172] [2023-11-26 11:59:26,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:26,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:26,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:26,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:26,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:26,862 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:59:26,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:26,961 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2023-11-26 11:59:26,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:59:26,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 1 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 17 [2023-11-26 11:59:26,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:26,966 INFO L225 Difference]: With dead ends: 42 [2023-11-26 11:59:26,966 INFO L226 Difference]: Without dead ends: 40 [2023-11-26 11:59:26,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:26,971 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 14 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:26,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 80 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:59:26,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-26 11:59:26,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2023-11-26 11:59:26,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.434782608695652) internal successors, (33), 28 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:59:26,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2023-11-26 11:59:26,989 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 17 [2023-11-26 11:59:26,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:26,990 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2023-11-26 11:59:26,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:59:26,990 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2023-11-26 11:59:26,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-26 11:59:26,993 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:26,994 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:26,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:59:26,994 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-26 11:59:26,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:26,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1210533152, now seen corresponding path program 1 times [2023-11-26 11:59:26,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:27,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478572618] [2023-11-26 11:59:27,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:27,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:27,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:59:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:27,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:59:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:27,219 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:59:27,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:27,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478572618] [2023-11-26 11:59:27,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478572618] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:27,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042596445] [2023-11-26 11:59:27,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:27,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:27,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:27,235 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:27,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:59:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:27,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:59:27,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:27,418 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:59:27,418 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:27,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042596445] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:27,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:27,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-11-26 11:59:27,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002349392] [2023-11-26 11:59:27,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:27,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:27,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:27,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:27,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:59:27,424 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:59:27,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:27,508 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2023-11-26 11:59:27,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:59:27,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 1 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 20 [2023-11-26 11:59:27,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:27,512 INFO L225 Difference]: With dead ends: 38 [2023-11-26 11:59:27,512 INFO L226 Difference]: Without dead ends: 36 [2023-11-26 11:59:27,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:59:27,516 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 27 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:27,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 63 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:59:27,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-26 11:59:27,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2023-11-26 11:59:27,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 26 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:59:27,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2023-11-26 11:59:27,531 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 20 [2023-11-26 11:59:27,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:27,531 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2023-11-26 11:59:27,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:59:27,532 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2023-11-26 11:59:27,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-26 11:59:27,533 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:27,533 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:27,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:27,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:27,744 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-26 11:59:27,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:27,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1167344710, now seen corresponding path program 1 times [2023-11-26 11:59:27,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:27,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013058856] [2023-11-26 11:59:27,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:27,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:27,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:27,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:59:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:27,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:59:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:27,942 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 11:59:27,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:27,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013058856] [2023-11-26 11:59:27,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013058856] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:27,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:27,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:59:27,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690666573] [2023-11-26 11:59:27,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:27,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:59:27,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:27,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:59:27,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:27,954 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:59:28,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:28,029 INFO L93 Difference]: Finished difference Result 64 states and 77 transitions. [2023-11-26 11:59:28,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:59:28,030 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-11-26 11:59:28,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:28,037 INFO L225 Difference]: With dead ends: 64 [2023-11-26 11:59:28,037 INFO L226 Difference]: Without dead ends: 54 [2023-11-26 11:59:28,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:59:28,040 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 17 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:28,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 127 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:59:28,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-26 11:59:28,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 37. [2023-11-26 11:59:28,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 30 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-26 11:59:28,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2023-11-26 11:59:28,062 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 20 [2023-11-26 11:59:28,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:28,062 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2023-11-26 11:59:28,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:59:28,063 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2023-11-26 11:59:28,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-26 11:59:28,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:28,064 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:28,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:59:28,065 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-26 11:59:28,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:28,066 INFO L85 PathProgramCache]: Analyzing trace with hash -640109753, now seen corresponding path program 1 times [2023-11-26 11:59:28,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:28,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586968304] [2023-11-26 11:59:28,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:28,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:28,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:59:28,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:28,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:59:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:28,156 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:59:28,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:28,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586968304] [2023-11-26 11:59:28,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586968304] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:28,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:28,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:28,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107509307] [2023-11-26 11:59:28,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:28,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:28,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:28,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:28,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:28,160 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:59:28,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:28,246 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2023-11-26 11:59:28,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:59:28,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 1 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 20 [2023-11-26 11:59:28,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:28,248 INFO L225 Difference]: With dead ends: 43 [2023-11-26 11:59:28,248 INFO L226 Difference]: Without dead ends: 35 [2023-11-26 11:59:28,250 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 [2023-11-26 11:59:28,251 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 6 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:28,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 84 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:59:28,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-26 11:59:28,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2023-11-26 11:59:28,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-26 11:59:28,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2023-11-26 11:59:28,269 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 20 [2023-11-26 11:59:28,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:28,269 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2023-11-26 11:59:28,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:59:28,276 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2023-11-26 11:59:28,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 11:59:28,278 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:28,278 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:28,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:59:28,279 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-26 11:59:28,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:28,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1128177881, now seen corresponding path program 1 times [2023-11-26 11:59:28,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:28,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392557937] [2023-11-26 11:59:28,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:28,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:28,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:59:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:28,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:59:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:28,405 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:59:28,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:28,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392557937] [2023-11-26 11:59:28,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392557937] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:28,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232882490] [2023-11-26 11:59:28,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:28,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:28,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:28,416 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:28,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:59:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:28,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:59:28,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:28,534 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:59:28,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:28,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232882490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:28,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:28,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-26 11:59:28,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417102948] [2023-11-26 11:59:28,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:28,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:59:28,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:28,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:59:28,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:59:28,537 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:59:28,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:28,556 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2023-11-26 11:59:28,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:59:28,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-26 11:59:28,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:28,557 INFO L225 Difference]: With dead ends: 33 [2023-11-26 11:59:28,557 INFO L226 Difference]: Without dead ends: 32 [2023-11-26 11:59:28,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:59:28,559 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 12 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:28,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 27 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:59:28,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-26 11:59:28,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-26 11:59:28,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.25) internal successors, (30), 26 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-26 11:59:28,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2023-11-26 11:59:28,566 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 21 [2023-11-26 11:59:28,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:28,567 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2023-11-26 11:59:28,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:59:28,567 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2023-11-26 11:59:28,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-26 11:59:28,568 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:28,568 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:28,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:28,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:28,775 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-26 11:59:28,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:28,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1847181680, now seen corresponding path program 1 times [2023-11-26 11:59:28,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:28,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348778197] [2023-11-26 11:59:28,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:28,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:28,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:59:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:28,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:59:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:28,857 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-26 11:59:28,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:28,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348778197] [2023-11-26 11:59:28,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348778197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:28,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:28,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:59:28,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492381960] [2023-11-26 11:59:28,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:28,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:59:28,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:28,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:59:28,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:59:28,860 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:59:28,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:28,895 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2023-11-26 11:59:28,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:59:28,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2023-11-26 11:59:28,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:28,897 INFO L225 Difference]: With dead ends: 32 [2023-11-26 11:59:28,897 INFO L226 Difference]: Without dead ends: 31 [2023-11-26 11:59:28,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:59:28,899 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 5 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:28,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 56 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:59:28,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-26 11:59:28,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-26 11:59:28,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 25 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-26 11:59:28,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2023-11-26 11:59:28,917 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 23 [2023-11-26 11:59:28,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:28,919 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2023-11-26 11:59:28,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:59:28,919 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-11-26 11:59:28,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-26 11:59:28,920 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:28,921 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:28,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:59:28,921 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-26 11:59:28,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:28,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1428057147, now seen corresponding path program 1 times [2023-11-26 11:59:28,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:28,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993442139] [2023-11-26 11:59:28,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:28,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:29,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:59:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:29,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:59:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:29,109 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:59:29,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:29,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993442139] [2023-11-26 11:59:29,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993442139] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:29,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500962515] [2023-11-26 11:59:29,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:29,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:29,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:29,112 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:29,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:59:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:29,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:59:29,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:29,341 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:59:29,341 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:29,432 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:59:29,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500962515] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:59:29,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:59:29,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2023-11-26 11:59:29,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58068913] [2023-11-26 11:59:29,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:29,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 11:59:29,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:29,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 11:59:29,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:59:29,439 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 13 states have internal predecessors, (34), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 11:59:29,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:29,643 INFO L93 Difference]: Finished difference Result 59 states and 71 transitions. [2023-11-26 11:59:29,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:59:29,644 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 13 states have internal predecessors, (34), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 24 [2023-11-26 11:59:29,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:29,645 INFO L225 Difference]: With dead ends: 59 [2023-11-26 11:59:29,645 INFO L226 Difference]: Without dead ends: 53 [2023-11-26 11:59:29,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:59:29,646 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 104 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:29,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 102 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:59:29,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-26 11:59:29,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 40. [2023-11-26 11:59:29,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-26 11:59:29,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2023-11-26 11:59:29,656 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 24 [2023-11-26 11:59:29,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:29,657 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2023-11-26 11:59:29,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 13 states have internal predecessors, (34), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 11:59:29,657 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2023-11-26 11:59:29,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-26 11:59:29,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:29,658 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:29,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:29,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:29,866 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-26 11:59:29,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:29,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1206903734, now seen corresponding path program 1 times [2023-11-26 11:59:29,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:29,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866481519] [2023-11-26 11:59:29,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:29,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:30,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:59:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:30,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:59:30,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:30,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-26 11:59:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:30,038 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:59:30,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:30,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866481519] [2023-11-26 11:59:30,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866481519] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:30,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98952737] [2023-11-26 11:59:30,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:30,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:30,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:30,040 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:30,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:59:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:30,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:59:30,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:30,238 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:59:30,238 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:30,336 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:59:30,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98952737] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:59:30,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:59:30,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2023-11-26 11:59:30,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331766162] [2023-11-26 11:59:30,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:30,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 11:59:30,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:30,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 11:59:30,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:59:30,339 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:59:30,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:30,518 INFO L93 Difference]: Finished difference Result 74 states and 93 transitions. [2023-11-26 11:59:30,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:59:30,518 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 28 [2023-11-26 11:59:30,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:30,520 INFO L225 Difference]: With dead ends: 74 [2023-11-26 11:59:30,520 INFO L226 Difference]: Without dead ends: 73 [2023-11-26 11:59:30,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:59:30,521 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 46 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:30,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 89 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:59:30,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-26 11:59:30,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 55. [2023-11-26 11:59:30,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.2) internal successors, (54), 43 states have internal predecessors, (54), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (12), 10 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-26 11:59:30,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 72 transitions. [2023-11-26 11:59:30,532 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 72 transitions. Word has length 28 [2023-11-26 11:59:30,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:30,532 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 72 transitions. [2023-11-26 11:59:30,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:59:30,533 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 72 transitions. [2023-11-26 11:59:30,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-26 11:59:30,534 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:30,534 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:30,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:30,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:30,741 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-26 11:59:30,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:30,742 INFO L85 PathProgramCache]: Analyzing trace with hash 162598884, now seen corresponding path program 1 times [2023-11-26 11:59:30,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:30,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783018496] [2023-11-26 11:59:30,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:30,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:30,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:59:30,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:30,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:59:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:30,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-26 11:59:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:30,900 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:59:30,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:30,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783018496] [2023-11-26 11:59:30,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783018496] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:30,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887305309] [2023-11-26 11:59:30,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:30,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:30,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:30,903 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:30,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:59:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:31,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:59:31,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:31,087 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:59:31,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:31,203 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:59:31,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887305309] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:59:31,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:59:31,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2023-11-26 11:59:31,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228388091] [2023-11-26 11:59:31,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:31,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-26 11:59:31,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:31,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-26 11:59:31,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-26 11:59:31,207 INFO L87 Difference]: Start difference. First operand 55 states and 72 transitions. Second operand has 15 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:59:31,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:31,449 INFO L93 Difference]: Finished difference Result 60 states and 78 transitions. [2023-11-26 11:59:31,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-26 11:59:31,450 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 31 [2023-11-26 11:59:31,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:31,451 INFO L225 Difference]: With dead ends: 60 [2023-11-26 11:59:31,451 INFO L226 Difference]: Without dead ends: 49 [2023-11-26 11:59:31,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2023-11-26 11:59:31,453 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 40 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:31,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 112 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:59:31,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-26 11:59:31,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 39. [2023-11-26 11:59:31,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 31 states have (on average 1.064516129032258) internal successors, (33), 31 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:59:31,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2023-11-26 11:59:31,463 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 31 [2023-11-26 11:59:31,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:31,464 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2023-11-26 11:59:31,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:59:31,464 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2023-11-26 11:59:31,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-26 11:59:31,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:31,467 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:31,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:31,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 11:59:31,680 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-26 11:59:31,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:31,681 INFO L85 PathProgramCache]: Analyzing trace with hash 652916244, now seen corresponding path program 2 times [2023-11-26 11:59:31,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:31,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728142598] [2023-11-26 11:59:31,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:31,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:32,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:59:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:32,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:59:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:32,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-26 11:59:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:32,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 11:59:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:32,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-26 11:59:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:32,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-26 11:59:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:32,239 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-26 11:59:32,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:32,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728142598] [2023-11-26 11:59:32,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728142598] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:32,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543594680] [2023-11-26 11:59:32,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:59:32,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:32,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:32,241 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:32,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:59:32,406 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:59:32,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:59:32,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-26 11:59:32,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:32,509 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-26 11:59:32,509 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:32,774 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-26 11:59:32,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543594680] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:59:32,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:59:32,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 24 [2023-11-26 11:59:32,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596992117] [2023-11-26 11:59:32,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:32,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-26 11:59:32,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:32,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-26 11:59:32,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2023-11-26 11:59:32,778 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 25 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 24 states have internal predecessors, (64), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:59:33,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:33,150 INFO L93 Difference]: Finished difference Result 78 states and 106 transitions. [2023-11-26 11:59:33,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-26 11:59:33,151 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 24 states have internal predecessors, (64), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 58 [2023-11-26 11:59:33,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:33,152 INFO L225 Difference]: With dead ends: 78 [2023-11-26 11:59:33,153 INFO L226 Difference]: Without dead ends: 77 [2023-11-26 11:59:33,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=856, Unknown=0, NotChecked=0, Total=1190 [2023-11-26 11:59:33,154 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 37 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:33,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 127 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:59:33,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-26 11:59:33,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2023-11-26 11:59:33,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 61 states have (on average 1.0327868852459017) internal successors, (63), 61 states have internal predecessors, (63), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:59:33,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 87 transitions. [2023-11-26 11:59:33,170 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 87 transitions. Word has length 58 [2023-11-26 11:59:33,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:33,170 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 87 transitions. [2023-11-26 11:59:33,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 24 states have internal predecessors, (64), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:59:33,171 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2023-11-26 11:59:33,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-26 11:59:33,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:33,172 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:33,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:33,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-26 11:59:33,380 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-26 11:59:33,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:33,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1190678864, now seen corresponding path program 3 times [2023-11-26 11:59:33,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:33,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801697714] [2023-11-26 11:59:33,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:33,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:34,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:59:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:34,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:59:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:34,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-26 11:59:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:34,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 11:59:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:34,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-26 11:59:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:34,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-26 11:59:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:34,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-26 11:59:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:34,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-26 11:59:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:34,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-26 11:59:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:34,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-26 11:59:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:34,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-26 11:59:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:34,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-26 11:59:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:34,779 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 275 proven. 55 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-26 11:59:34,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:34,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801697714] [2023-11-26 11:59:34,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801697714] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:34,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730330887] [2023-11-26 11:59:34,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-26 11:59:34,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:34,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:34,781 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:34,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 11:59:34,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-26 11:59:34,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:59:34,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:59:34,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:35,139 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-26 11:59:35,139 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:35,390 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-26 11:59:35,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730330887] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:59:35,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:59:35,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 4, 4] total 30 [2023-11-26 11:59:35,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194793702] [2023-11-26 11:59:35,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:35,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-26 11:59:35,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:35,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-26 11:59:35,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=721, Unknown=0, NotChecked=0, Total=870 [2023-11-26 11:59:35,399 INFO L87 Difference]: Start difference. First operand 75 states and 87 transitions. Second operand has 30 states, 30 states have (on average 2.8666666666666667) internal successors, (86), 29 states have internal predecessors, (86), 15 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-26 11:59:36,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:36,270 INFO L93 Difference]: Finished difference Result 82 states and 104 transitions. [2023-11-26 11:59:36,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-26 11:59:36,270 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.8666666666666667) internal successors, (86), 29 states have internal predecessors, (86), 15 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 118 [2023-11-26 11:59:36,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:36,271 INFO L225 Difference]: With dead ends: 82 [2023-11-26 11:59:36,271 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 11:59:36,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=744, Invalid=2562, Unknown=0, NotChecked=0, Total=3306 [2023-11-26 11:59:36,274 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 29 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:36,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 273 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:59:36,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 11:59:36,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 11:59:36,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:36,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 11:59:36,277 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 118 [2023-11-26 11:59:36,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:36,277 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:59:36,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.8666666666666667) internal successors, (86), 29 states have internal predecessors, (86), 15 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-26 11:59:36,278 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 11:59:36,278 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 11:59:36,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-26 11:59:36,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-26 11:59:36,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-26 11:59:36,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-26 11:59:36,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-26 11:59:36,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-26 11:59:36,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:36,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-26 11:59:36,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 11:59:37,086 INFO L899 garLoopResultBuilder]: For program point L526(lines 526 530) no Hoare annotation was computed. [2023-11-26 11:59:37,086 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 525 531) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2023-11-26 11:59:37,087 INFO L899 garLoopResultBuilder]: For program point ldv_mallocFINAL(lines 525 531) no Hoare annotation was computed. [2023-11-26 11:59:37,087 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 525 531) no Hoare annotation was computed. [2023-11-26 11:59:37,087 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed. [2023-11-26 11:59:37,087 INFO L895 garLoopResultBuilder]: At program point L762(line 762) the Hoare annotation is: (= 10 |ULTIMATE.start_entry_point_~len~0#1|) [2023-11-26 11:59:37,087 INFO L899 garLoopResultBuilder]: For program point L762-1(line 762) no Hoare annotation was computed. [2023-11-26 11:59:37,087 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 767) no Hoare annotation was computed. [2023-11-26 11:59:37,087 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed. [2023-11-26 11:59:37,087 INFO L899 garLoopResultBuilder]: For program point L767-3(line 767) no Hoare annotation was computed. [2023-11-26 11:59:37,087 INFO L899 garLoopResultBuilder]: For program point L763(lines 763 777) no Hoare annotation was computed. [2023-11-26 11:59:37,088 INFO L899 garLoopResultBuilder]: For program point L767-4(line 767) no Hoare annotation was computed. [2023-11-26 11:59:37,088 INFO L895 garLoopResultBuilder]: At program point L767-5(lines 767 771) the Hoare annotation is: (let ((.cse0 (= 10 |ULTIMATE.start_entry_point_~len~0#1|))) (or (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 3)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 1)) (and (= |ULTIMATE.start_entry_point_~i~0#1| 2) .cse0) (and .cse0 (<= 5 |ULTIMATE.start_entry_point_~i~0#1|) (<= |ULTIMATE.start_entry_point_~i~0#1| 2147483642)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 4)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 0)) (and (<= |ULTIMATE.start_entry_point_~i~0#1| 2147483646) .cse0 (<= 9 |ULTIMATE.start_entry_point_~i~0#1|)))) [2023-11-26 11:59:37,088 INFO L899 garLoopResultBuilder]: For program point L763-2(lines 760 779) no Hoare annotation was computed. [2023-11-26 11:59:37,088 INFO L899 garLoopResultBuilder]: For program point L772(lines 763 777) no Hoare annotation was computed. [2023-11-26 11:59:37,088 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 767) no Hoare annotation was computed. [2023-11-26 11:59:37,088 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 11:59:37,088 INFO L895 garLoopResultBuilder]: At program point L768(line 768) the Hoare annotation is: (let ((.cse0 (= 10 |ULTIMATE.start_entry_point_~len~0#1|))) (or (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 3)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 1)) (and (= |ULTIMATE.start_entry_point_~i~0#1| 2) .cse0) (and .cse0 (<= 5 |ULTIMATE.start_entry_point_~i~0#1|) (<= |ULTIMATE.start_entry_point_~i~0#1| 9)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 4)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 0)))) [2023-11-26 11:59:37,089 INFO L899 garLoopResultBuilder]: For program point L768-1(line 768) no Hoare annotation was computed. [2023-11-26 11:59:37,089 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed. [2023-11-26 11:59:37,089 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 11:59:37,089 INFO L899 garLoopResultBuilder]: For program point L773(line 773) no Hoare annotation was computed. [2023-11-26 11:59:37,089 INFO L899 garLoopResultBuilder]: For program point L769(line 769) no Hoare annotation was computed. [2023-11-26 11:59:37,089 INFO L899 garLoopResultBuilder]: For program point L773-4(line 773) no Hoare annotation was computed. [2023-11-26 11:59:37,089 INFO L899 garLoopResultBuilder]: For program point L773-5(line 773) no Hoare annotation was computed. [2023-11-26 11:59:37,089 INFO L895 garLoopResultBuilder]: At program point L773-6(lines 773 775) the Hoare annotation is: (and (or (< 0 |ULTIMATE.start_entry_point_~i~0#1|) (= |ULTIMATE.start_entry_point_~i~0#1| 0)) (<= |ULTIMATE.start_entry_point_~i~0#1| 2147483647) (<= 10 |ULTIMATE.start_entry_point_~len~0#1|) (<= |ULTIMATE.start_entry_point_~j~0#1| 2147483648)) [2023-11-26 11:59:37,089 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed. [2023-11-26 11:59:37,090 INFO L899 garLoopResultBuilder]: For program point L773-7(lines 773 775) no Hoare annotation was computed. [2023-11-26 11:59:37,093 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:37,095 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:59:37,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:59:37 BoogieIcfgContainer [2023-11-26 11:59:37,107 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:59:37,108 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:59:37,108 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:59:37,108 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:59:37,109 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:59:25" (3/4) ... [2023-11-26 11:59:37,110 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:59:37,114 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2023-11-26 11:59:37,119 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-26 11:59:37,119 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 11:59:37,119 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-26 11:59:37,216 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:59:37,216 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:59:37,216 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:59:37,217 INFO L158 Benchmark]: Toolchain (without parser) took 12804.71ms. Allocated memory was 213.9MB in the beginning and 257.9MB in the end (delta: 44.0MB). Free memory was 181.1MB in the beginning and 168.0MB in the end (delta: 13.1MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2023-11-26 11:59:37,217 INFO L158 Benchmark]: CDTParser took 1.22ms. Allocated memory is still 121.6MB. Free memory is still 66.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:59:37,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 719.88ms. Allocated memory is still 213.9MB. Free memory was 181.1MB in the beginning and 158.6MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-26 11:59:37,218 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.86ms. Allocated memory is still 213.9MB. Free memory was 158.6MB in the beginning and 156.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:59:37,219 INFO L158 Benchmark]: Boogie Preprocessor took 71.53ms. Allocated memory is still 213.9MB. Free memory was 156.5MB in the beginning and 154.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:59:37,220 INFO L158 Benchmark]: RCFGBuilder took 500.67ms. Allocated memory is still 213.9MB. Free memory was 154.4MB in the beginning and 141.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 11:59:37,224 INFO L158 Benchmark]: TraceAbstraction took 11320.14ms. Allocated memory was 213.9MB in the beginning and 257.9MB in the end (delta: 44.0MB). Free memory was 140.7MB in the beginning and 173.3MB in the end (delta: -32.5MB). Peak memory consumption was 107.0MB. Max. memory is 16.1GB. [2023-11-26 11:59:37,224 INFO L158 Benchmark]: Witness Printer took 108.73ms. Allocated memory is still 257.9MB. Free memory was 173.3MB in the beginning and 168.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:59:37,228 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.22ms. Allocated memory is still 121.6MB. Free memory is still 66.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 719.88ms. Allocated memory is still 213.9MB. Free memory was 181.1MB in the beginning and 158.6MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.86ms. Allocated memory is still 213.9MB. Free memory was 158.6MB in the beginning and 156.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.53ms. Allocated memory is still 213.9MB. Free memory was 156.5MB in the beginning and 154.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 500.67ms. Allocated memory is still 213.9MB. Free memory was 154.4MB in the beginning and 141.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 11320.14ms. Allocated memory was 213.9MB in the beginning and 257.9MB in the end (delta: 44.0MB). Free memory was 140.7MB in the beginning and 173.3MB in the end (delta: -32.5MB). Peak memory consumption was 107.0MB. Max. memory is 16.1GB. * Witness Printer took 108.73ms. Allocated memory is still 257.9MB. Free memory was 173.3MB in the beginning and 168.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 28 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 11.2s, OverallIterations: 12, TraceHistogramMax: 12, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 385 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 378 mSDsluCounter, 1210 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 930 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1067 IncrementalHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 280 mSDtfsCounter, 1067 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 757 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1069 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=11, InterpolantAutomatonStates: 124, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 85 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 16 PreInvPairs, 40 NumberOfFragments, 129 HoareAnnotationTreeSize, 16 FomulaSimplifications, 3975 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 5 FomulaSimplificationsInter, 267 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 690 NumberOfCodeBlocks, 592 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 925 ConstructedInterpolants, 0 QuantifiedInterpolants, 2271 SizeOfPredicates, 17 NumberOfNonLiveVariables, 1100 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 24 InterpolantComputations, 7 PerfectInterpolantSequences, 1926/2296 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 767]: Loop Invariant Derived loop invariant: ((((((((10 == len) && (i == 3)) || ((10 == len) && (i == 1))) || ((i == 2) && (10 == len))) || (((10 == len) && (5 <= i)) && (i <= 2147483642))) || ((10 == len) && (i == 4))) || ((10 == len) && (i == 0))) || (((i <= 2147483646) && (10 == len)) && (9 <= i))) - InvariantResult [Line: 773]: Loop Invariant Derived loop invariant: (((((0 < i) || (i == 0)) && (i <= 2147483647)) && (10 <= len)) && (j <= 2147483648)) RESULT: Ultimate proved your program to be correct! [2023-11-26 11:59:37,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec88c6cf-80cf-4853-9fe9-f6632af366d8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE