./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/memsafety-ext2/length_test03-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/memsafety-ext2/length_test03-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU --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 6e9221de91e231efa38b63f264828813e89f68c8ac306a629b3513c0e7bf1ed0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:06,447 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:06,512 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 21:59:06,517 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:06,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:06,560 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:06,561 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:06,561 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:06,562 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:59:06,562 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:59:06,563 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:59:06,563 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:59:06,564 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:06,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:06,565 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:06,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:06,566 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:59:06,567 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:59:06,568 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:06,568 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:59:06,569 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:06,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:59:06,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:59:06,573 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:59:06,574 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:06,574 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 21:59:06,574 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:59:06,575 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:59:06,575 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:06,575 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:06,576 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:06,576 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:06,579 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:59:06,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:59:06,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:06,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:06,580 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:59:06,580 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:59:06,580 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:06,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:59:06,581 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:59:06,583 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:59:06,583 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:59:06,584 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:59:06,584 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_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e9221de91e231efa38b63f264828813e89f68c8ac306a629b3513c0e7bf1ed0 [2024-10-31 21:59:06,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:06,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:06,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:06,969 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:06,970 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:06,975 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/memsafety-ext2/length_test03-1.i Unable to find full path for "g++" [2024-10-31 21:59:09,572 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:09,960 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:09,962 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/sv-benchmarks/c/memsafety-ext2/length_test03-1.i [2024-10-31 21:59:09,979 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/data/f9227982f/8f6bf53a1e454a7e8dda0a8de45317b1/FLAG740d4a9e1 [2024-10-31 21:59:09,999 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/data/f9227982f/8f6bf53a1e454a7e8dda0a8de45317b1 [2024-10-31 21:59:10,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:10,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:10,006 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:10,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:10,012 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:10,013 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:10" (1/1) ... [2024-10-31 21:59:10,014 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd5a22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:10, skipping insertion in model container [2024-10-31 21:59:10,017 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:10" (1/1) ... [2024-10-31 21:59:10,075 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:10,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:10,517 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:59:10,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:10,610 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:59:10,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:10 WrapperNode [2024-10-31 21:59:10,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:10,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:10,613 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:59:10,613 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:59:10,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:10" (1/1) ... [2024-10-31 21:59:10,640 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:10" (1/1) ... [2024-10-31 21:59:10,663 INFO L138 Inliner]: procedures = 123, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 94 [2024-10-31 21:59:10,664 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:10,664 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:59:10,665 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:59:10,665 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:59:10,679 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:10" (1/1) ... [2024-10-31 21:59:10,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:10" (1/1) ... [2024-10-31 21:59:10,683 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:10" (1/1) ... [2024-10-31 21:59:10,702 INFO L175 MemorySlicer]: Split 25 memory accesses to 3 slices as follows [2, 10, 13]. 52 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 13 writes are split as follows [0, 6, 7]. [2024-10-31 21:59:10,702 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:10" (1/1) ... [2024-10-31 21:59:10,702 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:10" (1/1) ... [2024-10-31 21:59:10,713 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:10" (1/1) ... [2024-10-31 21:59:10,717 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:10" (1/1) ... [2024-10-31 21:59:10,719 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:10" (1/1) ... [2024-10-31 21:59:10,721 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:10" (1/1) ... [2024-10-31 21:59:10,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:59:10,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:59:10,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:59:10,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:59:10,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:10" (1/1) ... [2024-10-31 21:59:10,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:10,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:10,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:10,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:59:10,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 21:59:10,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 21:59:10,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 21:59:10,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 21:59:10,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:59:10,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 21:59:10,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 21:59:10,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 21:59:10,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 21:59:10,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 21:59:10,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-31 21:59:10,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 21:59:10,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:59:10,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 21:59:10,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 21:59:10,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:59:10,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:59:10,799 INFO L130 BoogieDeclarations]: Found specification of procedure append [2024-10-31 21:59:10,799 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2024-10-31 21:59:10,916 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:59:10,918 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:59:11,221 INFO L? ?]: Removed 44 outVars from TransFormulas that were not future-live. [2024-10-31 21:59:11,221 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:59:11,239 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:59:11,241 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-31 21:59:11,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:11 BoogieIcfgContainer [2024-10-31 21:59:11,242 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:59:11,245 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:59:11,246 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:59:11,250 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:59:11,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:59:10" (1/3) ... [2024-10-31 21:59:11,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115b6803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:11, skipping insertion in model container [2024-10-31 21:59:11,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:10" (2/3) ... [2024-10-31 21:59:11,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115b6803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:11, skipping insertion in model container [2024-10-31 21:59:11,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:11" (3/3) ... [2024-10-31 21:59:11,255 INFO L112 eAbstractionObserver]: Analyzing ICFG length_test03-1.i [2024-10-31 21:59:11,293 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:59:11,294 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-31 21:59:11,384 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:59:11,391 INFO L333 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, 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;@10b40762, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:59:11,391 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-31 21:59:11,396 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 30 states have internal predecessors, (40), 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) [2024-10-31 21:59:11,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 21:59:11,407 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:11,407 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:11,408 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 21:59:11,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:11,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1764945748, now seen corresponding path program 1 times [2024-10-31 21:59:11,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:11,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555708465] [2024-10-31 21:59:11,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:11,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:11,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:11,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:11,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555708465] [2024-10-31 21:59:11,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555708465] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:11,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:11,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:11,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046181431] [2024-10-31 21:59:11,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:11,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 21:59:11,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:11,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 21:59:11,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 21:59:11,738 INFO L87 Difference]: Start difference. First operand has 34 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 30 states have internal predecessors, (40), 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 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:11,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:11,757 INFO L93 Difference]: Finished difference Result 61 states and 78 transitions. [2024-10-31 21:59:11,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 21:59:11,759 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-31 21:59:11,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:11,766 INFO L225 Difference]: With dead ends: 61 [2024-10-31 21:59:11,767 INFO L226 Difference]: Without dead ends: 30 [2024-10-31 21:59:11,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 21:59:11,773 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:11,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:59:11,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-10-31 21:59:11,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-10-31 21:59:11,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.391304347826087) internal successors, (32), 26 states have internal predecessors, (32), 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) [2024-10-31 21:59:11,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2024-10-31 21:59:11,813 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 11 [2024-10-31 21:59:11,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:11,814 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2024-10-31 21:59:11,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:11,816 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2024-10-31 21:59:11,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-31 21:59:11,818 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:11,819 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:11,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:59:11,819 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 21:59:11,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:11,821 INFO L85 PathProgramCache]: Analyzing trace with hash -2143751006, now seen corresponding path program 1 times [2024-10-31 21:59:11,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:11,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420719443] [2024-10-31 21:59:11,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:11,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:12,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:59:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:12,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:12,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:12,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420719443] [2024-10-31 21:59:12,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420719443] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:12,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:12,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:12,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570997113] [2024-10-31 21:59:12,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:12,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:12,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:12,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:12,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:12,243 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-10-31 21:59:12,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:12,363 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2024-10-31 21:59:12,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:12,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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 20 [2024-10-31 21:59:12,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:12,365 INFO L225 Difference]: With dead ends: 45 [2024-10-31 21:59:12,365 INFO L226 Difference]: Without dead ends: 36 [2024-10-31 21:59:12,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:12,367 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 3 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:12,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 77 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:12,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-10-31 21:59:12,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2024-10-31 21:59:12,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.375) internal successors, (33), 27 states have internal predecessors, (33), 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) [2024-10-31 21:59:12,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2024-10-31 21:59:12,377 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 20 [2024-10-31 21:59:12,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:12,377 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2024-10-31 21:59:12,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-10-31 21:59:12,378 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2024-10-31 21:59:12,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-31 21:59:12,379 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:12,379 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:12,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:59:12,380 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 21:59:12,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:12,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1565841550, now seen corresponding path program 1 times [2024-10-31 21:59:12,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:12,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417497747] [2024-10-31 21:59:12,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:12,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:12,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:59:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:12,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-31 21:59:12,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:12,733 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 21:59:12,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:12,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417497747] [2024-10-31 21:59:12,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417497747] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:12,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:12,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:12,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604147707] [2024-10-31 21:59:12,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:12,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:12,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:12,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:12,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:12,750 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-10-31 21:59:12,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:12,924 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2024-10-31 21:59:12,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:12,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 23 [2024-10-31 21:59:12,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:12,927 INFO L225 Difference]: With dead ends: 40 [2024-10-31 21:59:12,927 INFO L226 Difference]: Without dead ends: 38 [2024-10-31 21:59:12,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:12,929 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 2 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:12,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 98 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:59:12,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-10-31 21:59:12,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2024-10-31 21:59:12,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 31 states have internal predecessors, (37), 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) [2024-10-31 21:59:12,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2024-10-31 21:59:12,944 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 23 [2024-10-31 21:59:12,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:12,945 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2024-10-31 21:59:12,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-10-31 21:59:12,947 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2024-10-31 21:59:12,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-31 21:59:12,948 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:12,948 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:12,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:59:12,950 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 21:59:12,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:12,951 INFO L85 PathProgramCache]: Analyzing trace with hash -55997675, now seen corresponding path program 1 times [2024-10-31 21:59:12,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:12,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227224590] [2024-10-31 21:59:12,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:12,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:13,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:59:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:13,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-31 21:59:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:13,247 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 21:59:13,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:13,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227224590] [2024-10-31 21:59:13,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227224590] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:13,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680641781] [2024-10-31 21:59:13,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:13,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:13,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:13,255 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:13,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 21:59:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:13,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:59:13,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:13,540 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 21:59:13,541 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:13,610 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 21:59:13,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680641781] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:13,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:59:13,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2024-10-31 21:59:13,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138580719] [2024-10-31 21:59:13,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:13,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 21:59:13,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:13,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 21:59:13,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-31 21:59:13,614 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 21:59:13,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:13,810 INFO L93 Difference]: Finished difference Result 55 states and 67 transitions. [2024-10-31 21:59:13,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 21:59:13,812 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 31 [2024-10-31 21:59:13,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:13,813 INFO L225 Difference]: With dead ends: 55 [2024-10-31 21:59:13,813 INFO L226 Difference]: Without dead ends: 45 [2024-10-31 21:59:13,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-31 21:59:13,814 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 7 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:13,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 142 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:59:13,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-10-31 21:59:13,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2024-10-31 21:59:13,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 37 states have internal predecessors, (44), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 21:59:13,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2024-10-31 21:59:13,827 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 31 [2024-10-31 21:59:13,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:13,827 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2024-10-31 21:59:13,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 21:59:13,827 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2024-10-31 21:59:13,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-31 21:59:13,830 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:13,830 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:13,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 21:59:14,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:14,031 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 21:59:14,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:14,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1891055301, now seen corresponding path program 1 times [2024-10-31 21:59:14,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:14,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351042454] [2024-10-31 21:59:14,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:14,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:14,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:59:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:14,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-31 21:59:14,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:14,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 21:59:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:14,411 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-31 21:59:14,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:14,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351042454] [2024-10-31 21:59:14,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351042454] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:14,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392247926] [2024-10-31 21:59:14,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:14,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:14,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:14,417 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:14,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 21:59:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:14,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:59:14,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:14,788 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-31 21:59:14,788 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:14,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392247926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:14,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:59:14,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-31 21:59:14,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955290280] [2024-10-31 21:59:14,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:14,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:14,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:14,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:14,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-31 21:59:14,791 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:59:14,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:14,849 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2024-10-31 21:59:14,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:14,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2024-10-31 21:59:14,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:14,855 INFO L225 Difference]: With dead ends: 45 [2024-10-31 21:59:14,857 INFO L226 Difference]: Without dead ends: 44 [2024-10-31 21:59:14,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-31 21:59:14,858 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 2 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:14,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 74 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:59:14,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-31 21:59:14,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2024-10-31 21:59:14,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 36 states have internal predecessors, (42), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 21:59:14,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2024-10-31 21:59:14,872 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 34 [2024-10-31 21:59:14,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:14,873 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2024-10-31 21:59:14,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:59:14,875 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2024-10-31 21:59:14,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-31 21:59:14,876 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:14,877 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:14,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 21:59:15,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:15,079 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 21:59:15,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:15,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1005040531, now seen corresponding path program 1 times [2024-10-31 21:59:15,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:15,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117318265] [2024-10-31 21:59:15,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:15,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:15,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:59:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:15,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-31 21:59:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:15,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 21:59:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:15,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-31 21:59:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:15,422 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-31 21:59:15,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:15,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117318265] [2024-10-31 21:59:15,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117318265] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:15,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:15,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:15,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433121673] [2024-10-31 21:59:15,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:15,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:15,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:15,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:15,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:15,426 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:59:15,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:15,514 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2024-10-31 21:59:15,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:15,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2024-10-31 21:59:15,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:15,516 INFO L225 Difference]: With dead ends: 43 [2024-10-31 21:59:15,516 INFO L226 Difference]: Without dead ends: 42 [2024-10-31 21:59:15,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:15,518 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 1 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:15,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 90 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:15,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-10-31 21:59:15,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2024-10-31 21:59:15,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 35 states have internal predecessors, (41), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 21:59:15,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2024-10-31 21:59:15,525 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 46 [2024-10-31 21:59:15,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:15,526 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2024-10-31 21:59:15,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:59:15,527 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2024-10-31 21:59:15,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-31 21:59:15,528 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:15,528 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:15,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:59:15,528 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 21:59:15,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:15,529 INFO L85 PathProgramCache]: Analyzing trace with hash -764384011, now seen corresponding path program 2 times [2024-10-31 21:59:15,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:15,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202132487] [2024-10-31 21:59:15,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:15,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:15,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:59:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:15,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-31 21:59:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:15,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 21:59:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:15,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-31 21:59:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:15,810 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-31 21:59:15,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:15,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202132487] [2024-10-31 21:59:15,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202132487] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:15,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:15,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:15,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031178700] [2024-10-31 21:59:15,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:15,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:15,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:15,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:15,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:15,813 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-10-31 21:59:15,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:15,923 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2024-10-31 21:59:15,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:15,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 53 [2024-10-31 21:59:15,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:15,925 INFO L225 Difference]: With dead ends: 47 [2024-10-31 21:59:15,925 INFO L226 Difference]: Without dead ends: 45 [2024-10-31 21:59:15,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:15,926 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 3 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 90 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 [2024-10-31 21:59:15,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 90 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:15,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-10-31 21:59:15,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-10-31 21:59:15,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 39 states have internal predecessors, (45), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 21:59:15,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 53 transitions. [2024-10-31 21:59:15,934 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 53 transitions. Word has length 53 [2024-10-31 21:59:15,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:15,935 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 53 transitions. [2024-10-31 21:59:15,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-10-31 21:59:15,935 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 53 transitions. [2024-10-31 21:59:15,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-31 21:59:15,937 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:15,937 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:15,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 21:59:15,938 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 21:59:15,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:15,938 INFO L85 PathProgramCache]: Analyzing trace with hash 436464497, now seen corresponding path program 1 times [2024-10-31 21:59:15,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:15,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561654743] [2024-10-31 21:59:15,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:15,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:16,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:59:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:16,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-31 21:59:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:16,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 21:59:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:16,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-31 21:59:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:16,799 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 24 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-31 21:59:16,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:16,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561654743] [2024-10-31 21:59:16,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561654743] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:16,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254248762] [2024-10-31 21:59:16,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:16,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:16,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:16,802 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:16,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 21:59:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:17,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 21:59:17,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:17,339 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-10-31 21:59:17,340 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:17,535 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-10-31 21:59:17,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254248762] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:17,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:59:17,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-31 21:59:17,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798514846] [2024-10-31 21:59:17,536 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:17,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-31 21:59:17,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:17,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-31 21:59:17,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-10-31 21:59:17,541 INFO L87 Difference]: Start difference. First operand 45 states and 53 transitions. Second operand has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 17 states have internal predecessors, (64), 7 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-10-31 21:59:18,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:18,775 INFO L93 Difference]: Finished difference Result 128 states and 168 transitions. [2024-10-31 21:59:18,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-31 21:59:18,776 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 17 states have internal predecessors, (64), 7 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 57 [2024-10-31 21:59:18,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:18,778 INFO L225 Difference]: With dead ends: 128 [2024-10-31 21:59:18,778 INFO L226 Difference]: Without dead ends: 99 [2024-10-31 21:59:18,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 112 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=144, Invalid=848, Unknown=0, NotChecked=0, Total=992 [2024-10-31 21:59:18,780 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 16 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:18,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 207 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-31 21:59:18,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-10-31 21:59:18,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93. [2024-10-31 21:59:18,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 78 states have (on average 1.1025641025641026) internal successors, (86), 79 states have internal predecessors, (86), 10 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (16), 11 states have call predecessors, (16), 10 states have call successors, (16) [2024-10-31 21:59:18,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 112 transitions. [2024-10-31 21:59:18,798 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 112 transitions. Word has length 57 [2024-10-31 21:59:18,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:18,798 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 112 transitions. [2024-10-31 21:59:18,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 17 states have internal predecessors, (64), 7 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-10-31 21:59:18,799 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 112 transitions. [2024-10-31 21:59:18,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-31 21:59:18,801 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:18,801 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:18,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 21:59:19,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-31 21:59:19,002 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 21:59:19,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:19,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1524846575, now seen corresponding path program 1 times [2024-10-31 21:59:19,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:19,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768810400] [2024-10-31 21:59:19,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:19,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:19,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:59:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:19,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-31 21:59:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:19,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 21:59:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:19,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-31 21:59:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:19,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 21:59:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:19,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 21:59:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:19,543 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-10-31 21:59:19,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:19,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768810400] [2024-10-31 21:59:19,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768810400] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:19,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702146009] [2024-10-31 21:59:19,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:19,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:19,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:19,547 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:19,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 21:59:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:19,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 21:59:19,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:20,038 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-10-31 21:59:20,039 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:20,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702146009] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:20,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:59:20,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-10-31 21:59:20,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108074583] [2024-10-31 21:59:20,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:20,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:59:20,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:20,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:59:20,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-31 21:59:20,042 INFO L87 Difference]: Start difference. First operand 93 states and 112 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 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) [2024-10-31 21:59:20,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:20,120 INFO L93 Difference]: Finished difference Result 93 states and 112 transitions. [2024-10-31 21:59:20,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:59:20,121 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 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 79 [2024-10-31 21:59:20,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:20,122 INFO L225 Difference]: With dead ends: 93 [2024-10-31 21:59:20,122 INFO L226 Difference]: Without dead ends: 92 [2024-10-31 21:59:20,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-31 21:59:20,123 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:20,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 92 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:20,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-10-31 21:59:20,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-10-31 21:59:20,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 78 states have (on average 1.0897435897435896) internal successors, (85), 78 states have internal predecessors, (85), 10 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (16), 11 states have call predecessors, (16), 10 states have call successors, (16) [2024-10-31 21:59:20,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 111 transitions. [2024-10-31 21:59:20,150 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 111 transitions. Word has length 79 [2024-10-31 21:59:20,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:20,151 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 111 transitions. [2024-10-31 21:59:20,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 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) [2024-10-31 21:59:20,153 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 111 transitions. [2024-10-31 21:59:20,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-31 21:59:20,154 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:20,158 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:20,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:20,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:20,365 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 21:59:20,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:20,366 INFO L85 PathProgramCache]: Analyzing trace with hash -25603473, now seen corresponding path program 1 times [2024-10-31 21:59:20,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:20,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655505329] [2024-10-31 21:59:20,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:20,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:20,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 21:59:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:20,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-31 21:59:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:20,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 21:59:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:20,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-31 21:59:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:20,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 21:59:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:20,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 21:59:20,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:20,807 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-10-31 21:59:20,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:20,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655505329] [2024-10-31 21:59:20,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655505329] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:20,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:20,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:20,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231573720] [2024-10-31 21:59:20,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:20,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:20,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:20,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:20,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:20,810 INFO L87 Difference]: Start difference. First operand 92 states and 111 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2024-10-31 21:59:20,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:20,898 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2024-10-31 21:59:20,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:20,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 80 [2024-10-31 21:59:20,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:20,900 INFO L225 Difference]: With dead ends: 92 [2024-10-31 21:59:20,900 INFO L226 Difference]: Without dead ends: 0 [2024-10-31 21:59:20,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:20,901 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 2 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:20,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 82 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:20,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-31 21:59:20,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-31 21:59:20,903 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) [2024-10-31 21:59:20,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-31 21:59:20,903 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 80 [2024-10-31 21:59:20,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:20,903 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 21:59:20,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2024-10-31 21:59:20,904 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-31 21:59:20,904 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-31 21:59:20,907 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-10-31 21:59:20,907 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-10-31 21:59:20,908 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-10-31 21:59:20,908 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-10-31 21:59:20,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 21:59:20,912 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:20,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-31 21:59:21,053 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 21:59:21,081 WARN L156 FloydHoareUtils]: Requires clause for append contained old-variable. Original clause: (and (= |old(#length)| |#length|) (= |old(#memory_$Pointer$#2.base)| |#memory_$Pointer$#2.base|) (= |#memory_int#2| |old(#memory_int#2)|) (= |#memory_$Pointer$#2.offset| |old(#memory_$Pointer$#2.offset)|) (= |old(#memory_$Pointer$#1.base)| |#memory_$Pointer$#1.base|) (= |#memory_int#1| |old(#memory_int#1)|) (= |old(#memory_$Pointer$#1.offset)| |#memory_$Pointer$#1.offset|) (= |old(#valid)| |#valid|)) Eliminated clause: true [2024-10-31 21:59:21,088 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$#2.base [2024-10-31 21:59:21,090 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_$Pointer$#2.base,GLOBAL]] [2024-10-31 21:59:21,090 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_$Pointer$#2.base,GLOBAL]],[IdentifierExpression[#in~head!base,]]] [2024-10-31 21:59:21,090 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$#2.base [2024-10-31 21:59:21,091 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$#2.base,GLOBAL] [2024-10-31 21:59:21,091 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$#2.base,GLOBAL],[IdentifierExpression[#in~head!base,]]] [2024-10-31 21:59:21,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 09:59:21 BoogieIcfgContainer [2024-10-31 21:59:21,095 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 21:59:21,096 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 21:59:21,096 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 21:59:21,096 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 21:59:21,097 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:11" (3/4) ... [2024-10-31 21:59:21,099 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 21:59:21,104 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure append [2024-10-31 21:59:21,111 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-31 21:59:21,111 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-31 21:59:21,111 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-31 21:59:21,112 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 21:59:21,218 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 21:59:21,219 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 21:59:21,219 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 21:59:21,220 INFO L158 Benchmark]: Toolchain (without parser) took 11215.71ms. Allocated memory was 136.3MB in the beginning and 251.7MB in the end (delta: 115.3MB). Free memory was 102.7MB in the beginning and 109.0MB in the end (delta: -6.3MB). Peak memory consumption was 110.5MB. Max. memory is 16.1GB. [2024-10-31 21:59:21,220 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 136.3MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:59:21,220 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.90ms. Allocated memory is still 136.3MB. Free memory was 102.3MB in the beginning and 82.5MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-31 21:59:21,221 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.62ms. Allocated memory is still 136.3MB. Free memory was 82.5MB in the beginning and 80.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:59:21,221 INFO L158 Benchmark]: Boogie Preprocessor took 59.76ms. Allocated memory is still 136.3MB. Free memory was 80.4MB in the beginning and 77.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:59:21,222 INFO L158 Benchmark]: RCFGBuilder took 517.29ms. Allocated memory is still 136.3MB. Free memory was 77.9MB in the beginning and 60.3MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-31 21:59:21,222 INFO L158 Benchmark]: TraceAbstraction took 9850.11ms. Allocated memory was 136.3MB in the beginning and 251.7MB in the end (delta: 115.3MB). Free memory was 59.5MB in the beginning and 114.3MB in the end (delta: -54.8MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2024-10-31 21:59:21,222 INFO L158 Benchmark]: Witness Printer took 123.48ms. Allocated memory is still 251.7MB. Free memory was 114.3MB in the beginning and 109.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-31 21:59:21,224 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 136.3MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.90ms. Allocated memory is still 136.3MB. Free memory was 102.3MB in the beginning and 82.5MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.62ms. Allocated memory is still 136.3MB. Free memory was 82.5MB in the beginning and 80.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.76ms. Allocated memory is still 136.3MB. Free memory was 80.4MB in the beginning and 77.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 517.29ms. Allocated memory is still 136.3MB. Free memory was 77.9MB in the beginning and 60.3MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9850.11ms. Allocated memory was 136.3MB in the beginning and 251.7MB in the end (delta: 115.3MB). Free memory was 59.5MB in the beginning and 114.3MB in the end (delta: -54.8MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. * Witness Printer took 123.48ms. Allocated memory is still 251.7MB. Free memory was 114.3MB in the beginning and 109.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$#2.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_$Pointer$#2.base,GLOBAL]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_$Pointer$#2.base,GLOBAL]],[IdentifierExpression[#in~head!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$#2.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$#2.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$#2.base,GLOBAL],[IdentifierExpression[#in~head!base,]]] * 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: 579]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 579]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 592]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 592]: 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, 34 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 9.6s, OverallIterations: 10, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 992 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 712 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 574 IncrementalHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 280 mSDtfsCounter, 574 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 406 GetRequests, 333 SyntacticMatches, 5 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=8, InterpolantAutomatonStates: 73, 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, 10 MinimizatonAttempts, 18 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 635 NumberOfCodeBlocks, 635 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 707 ConstructedInterpolants, 0 QuantifiedInterpolants, 1824 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2187 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 16 InterpolantComputations, 8 PerfectInterpolantSequences, 689/754 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 579]: Loop Invariant Derived loop invariant: (0 < (2147483649 + c)) - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((c == 0) || (0 < c)) - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2024-10-31 21:59:21,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a97ee671-f462-4d93-b263-824ca2bc4d87/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE