./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB --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 38a2fba2a92db51b6a97ddc82d5dc9e2df7a8770315ef841bfaf5f0764404946 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:41:16,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:41:16,960 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:41:16,970 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:41:16,971 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:41:17,013 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:41:17,016 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:41:17,016 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:41:17,017 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:41:17,017 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:41:17,019 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:41:17,019 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:41:17,020 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:41:17,020 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:41:17,020 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:41:17,021 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:41:17,021 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:41:17,021 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:41:17,021 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:41:17,021 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:41:17,021 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:41:17,022 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:41:17,022 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:41:17,022 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:41:17,022 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:41:17,022 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:41:17,022 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:41:17,022 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:41:17,023 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:41:17,023 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:41:17,023 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:41:17,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:41:17,023 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:41:17,023 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:41:17,023 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:41:17,023 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:41:17,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:41:17,023 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:41:17,024 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:41:17,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:41:17,024 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:41:17,024 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:41:17,024 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:41:17,024 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:41:17,024 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:41:17,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:41:17,024 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:41:17,024 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:41:17,024 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:41:17,025 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:41:17,026 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 38a2fba2a92db51b6a97ddc82d5dc9e2df7a8770315ef841bfaf5f0764404946 [2024-11-28 04:41:17,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:41:17,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:41:17,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:41:17,437 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:41:17,437 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:41:17,439 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_3.i [2024-11-28 04:41:20,672 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/data/d1ea24d17/15c29b22bb724a43bafcd80d2fd5b545/FLAGf9dcd0303 [2024-11-28 04:41:20,979 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:41:20,980 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/sv-benchmarks/c/ldv-memsafety/memleaks_test17_3.i [2024-11-28 04:41:21,001 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/data/d1ea24d17/15c29b22bb724a43bafcd80d2fd5b545/FLAGf9dcd0303 [2024-11-28 04:41:21,245 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/data/d1ea24d17/15c29b22bb724a43bafcd80d2fd5b545 [2024-11-28 04:41:21,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:41:21,252 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:41:21,254 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:41:21,256 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:41:21,261 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:41:21,262 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:41:21" (1/1) ... [2024-11-28 04:41:21,263 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10b0cc9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:21, skipping insertion in model container [2024-11-28 04:41:21,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:41:21" (1/1) ... [2024-11-28 04:41:21,330 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:41:21,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:41:21,843 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:41:21,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:41:21,971 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:41:21,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:21 WrapperNode [2024-11-28 04:41:21,972 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:41:21,973 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:41:21,973 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:41:21,973 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:41:21,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:21" (1/1) ... [2024-11-28 04:41:22,001 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:21" (1/1) ... [2024-11-28 04:41:22,030 INFO L138 Inliner]: procedures = 165, calls = 76, calls flagged for inlining = 22, calls inlined = 4, statements flattened = 68 [2024-11-28 04:41:22,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:41:22,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:41:22,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:41:22,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:41:22,044 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:21" (1/1) ... [2024-11-28 04:41:22,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:21" (1/1) ... [2024-11-28 04:41:22,050 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:21" (1/1) ... [2024-11-28 04:41:22,081 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-28 04:41:22,081 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:21" (1/1) ... [2024-11-28 04:41:22,082 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:21" (1/1) ... [2024-11-28 04:41:22,093 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:21" (1/1) ... [2024-11-28 04:41:22,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:21" (1/1) ... [2024-11-28 04:41:22,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:21" (1/1) ... [2024-11-28 04:41:22,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:21" (1/1) ... [2024-11-28 04:41:22,101 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:21" (1/1) ... [2024-11-28 04:41:22,103 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:41:22,104 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:41:22,105 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:41:22,105 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:41:22,106 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:21" (1/1) ... [2024-11-28 04:41:22,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:41:22,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:22,146 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:41:22,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:41:22,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-28 04:41:22,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-28 04:41:22,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:41:22,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:41:22,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:41:22,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:41:22,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:41:22,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:41:22,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:41:22,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 04:41:22,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 04:41:22,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:41:22,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:41:22,387 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:41:22,390 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:41:22,652 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-28 04:41:22,655 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:41:22,671 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:41:22,672 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-28 04:41:22,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:22 BoogieIcfgContainer [2024-11-28 04:41:22,673 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:41:22,676 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:41:22,676 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:41:22,682 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:41:22,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:41:21" (1/3) ... [2024-11-28 04:41:22,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7412c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:41:22, skipping insertion in model container [2024-11-28 04:41:22,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:21" (2/3) ... [2024-11-28 04:41:22,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7412c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:41:22, skipping insertion in model container [2024-11-28 04:41:22,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:22" (3/3) ... [2024-11-28 04:41:22,685 INFO L128 eAbstractionObserver]: Analyzing ICFG memleaks_test17_3.i [2024-11-28 04:41:22,705 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:41:22,707 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG memleaks_test17_3.i that has 2 procedures, 41 locations, 1 initial locations, 3 loop locations, and 8 error locations. [2024-11-28 04:41:22,769 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:41:22,784 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;@aab53c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:41:22,784 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-28 04:41:22,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 37 states have internal predecessors, (46), 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) [2024-11-28 04:41:22,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 04:41:22,796 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:22,797 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:22,797 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:41:22,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:22,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1784251483, now seen corresponding path program 1 times [2024-11-28 04:41:22,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:22,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627156421] [2024-11-28 04:41:22,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:22,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:23,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:41:23,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:23,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627156421] [2024-11-28 04:41:23,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627156421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:41:23,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:41:23,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:41:23,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590698248] [2024-11-28 04:41:23,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:41:23,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:41:23,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:23,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:41:23,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:41:23,325 INFO L87 Difference]: Start difference. First operand has 41 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 37 states have internal predecessors, (46), 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 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:41:23,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:23,425 INFO L93 Difference]: Finished difference Result 77 states and 93 transitions. [2024-11-28 04:41:23,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:41:23,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-11-28 04:41:23,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:23,437 INFO L225 Difference]: With dead ends: 77 [2024-11-28 04:41:23,437 INFO L226 Difference]: Without dead ends: 38 [2024-11-28 04:41:23,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:41:23,444 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 1 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:23,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 119 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:41:23,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-28 04:41:23,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-28 04:41:23,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 34 states have internal predecessors, (39), 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) [2024-11-28 04:41:23,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2024-11-28 04:41:23,504 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 12 [2024-11-28 04:41:23,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:23,506 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2024-11-28 04:41:23,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:41:23,506 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2024-11-28 04:41:23,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 04:41:23,509 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:23,509 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:23,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:41:23,510 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:41:23,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:23,511 INFO L85 PathProgramCache]: Analyzing trace with hash 555796703, now seen corresponding path program 1 times [2024-11-28 04:41:23,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:23,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611690821] [2024-11-28 04:41:23,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:23,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:23,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:41:23,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:23,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611690821] [2024-11-28 04:41:23,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611690821] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:41:23,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863922650] [2024-11-28 04:41:23,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:23,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:23,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:23,780 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:23,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:41:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:23,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:41:23,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:41:24,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:41:24,050 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:41:24,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863922650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:41:24,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:41:24,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-28 04:41:24,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745498599] [2024-11-28 04:41:24,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:41:24,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:41:24,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:24,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:41:24,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:41:24,056 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:41:24,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:24,154 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2024-11-28 04:41:24,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:41:24,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-28 04:41:24,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:24,156 INFO L225 Difference]: With dead ends: 38 [2024-11-28 04:41:24,156 INFO L226 Difference]: Without dead ends: 37 [2024-11-28 04:41:24,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:41:24,158 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 1 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:24,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 149 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:41:24,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-28 04:41:24,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-28 04:41:24,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 33 states have internal predecessors, (38), 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) [2024-11-28 04:41:24,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2024-11-28 04:41:24,164 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 16 [2024-11-28 04:41:24,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:24,165 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2024-11-28 04:41:24,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:41:24,165 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2024-11-28 04:41:24,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-28 04:41:24,166 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:24,166 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:24,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:41:24,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:24,370 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:41:24,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:24,371 INFO L85 PathProgramCache]: Analyzing trace with hash 49828666, now seen corresponding path program 1 times [2024-11-28 04:41:24,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:24,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848476393] [2024-11-28 04:41:24,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:24,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:24,690 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:41:24,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:24,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848476393] [2024-11-28 04:41:24,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848476393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:41:24,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926889092] [2024-11-28 04:41:24,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:24,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:24,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:24,694 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:24,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:41:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:24,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:41:24,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:41:24,872 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:41:24,873 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:41:24,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:41:24,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926889092] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:41:24,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:41:24,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-28 04:41:24,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548415890] [2024-11-28 04:41:24,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:41:24,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:41:24,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:24,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:41:24,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:41:24,982 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 12 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 12 states have internal predecessors, (29), 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) [2024-11-28 04:41:25,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:25,078 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2024-11-28 04:41:25,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:41:25,079 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 12 states have internal predecessors, (29), 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 17 [2024-11-28 04:41:25,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:25,081 INFO L225 Difference]: With dead ends: 50 [2024-11-28 04:41:25,085 INFO L226 Difference]: Without dead ends: 49 [2024-11-28 04:41:25,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:41:25,086 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:25,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:41:25,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-28 04:41:25,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-28 04:41:25,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 39 states have (on average 1.358974358974359) internal successors, (53), 45 states have internal predecessors, (53), 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) [2024-11-28 04:41:25,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2024-11-28 04:41:25,120 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 17 [2024-11-28 04:41:25,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:25,120 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2024-11-28 04:41:25,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 12 states have internal predecessors, (29), 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) [2024-11-28 04:41:25,120 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2024-11-28 04:41:25,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-28 04:41:25,121 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:25,121 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:25,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:41:25,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:25,323 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:41:25,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:25,324 INFO L85 PathProgramCache]: Analyzing trace with hash -547463409, now seen corresponding path program 1 times [2024-11-28 04:41:25,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:25,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224626875] [2024-11-28 04:41:25,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:25,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:25,414 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:41:25,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:25,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224626875] [2024-11-28 04:41:25,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224626875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:41:25,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:41:25,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:41:25,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913169204] [2024-11-28 04:41:25,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:41:25,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:41:25,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:25,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:41:25,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:41:25,416 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:41:25,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:25,447 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2024-11-28 04:41:25,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:41:25,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2024-11-28 04:41:25,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:25,449 INFO L225 Difference]: With dead ends: 72 [2024-11-28 04:41:25,449 INFO L226 Difference]: Without dead ends: 49 [2024-11-28 04:41:25,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:41:25,454 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 8 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:25,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 88 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:41:25,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-28 04:41:25,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-28 04:41:25,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 45 states have internal predecessors, (52), 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) [2024-11-28 04:41:25,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2024-11-28 04:41:25,466 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 56 transitions. Word has length 20 [2024-11-28 04:41:25,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:25,467 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 56 transitions. [2024-11-28 04:41:25,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:41:25,467 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2024-11-28 04:41:25,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 04:41:25,468 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:25,468 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:25,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:41:25,468 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:41:25,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:25,469 INFO L85 PathProgramCache]: Analyzing trace with hash 2109526601, now seen corresponding path program 1 times [2024-11-28 04:41:25,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:25,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309257938] [2024-11-28 04:41:25,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:25,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:25,609 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 04:41:25,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:25,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309257938] [2024-11-28 04:41:25,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309257938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:41:25,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:41:25,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:41:25,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366398733] [2024-11-28 04:41:25,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:41:25,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:41:25,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:25,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:41:25,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:41:25,611 INFO L87 Difference]: Start difference. First operand 49 states and 56 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:41:25,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:25,649 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2024-11-28 04:41:25,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:41:25,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-11-28 04:41:25,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:25,655 INFO L225 Difference]: With dead ends: 63 [2024-11-28 04:41:25,655 INFO L226 Difference]: Without dead ends: 53 [2024-11-28 04:41:25,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:41:25,659 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:25,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:41:25,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-28 04:41:25,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-11-28 04:41:25,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 48 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:41:25,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2024-11-28 04:41:25,670 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 24 [2024-11-28 04:41:25,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:25,670 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2024-11-28 04:41:25,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:41:25,671 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2024-11-28 04:41:25,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 04:41:25,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:25,672 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:25,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:41:25,672 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:41:25,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:25,673 INFO L85 PathProgramCache]: Analyzing trace with hash 2109526654, now seen corresponding path program 1 times [2024-11-28 04:41:25,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:25,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39897031] [2024-11-28 04:41:25,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:25,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:25,817 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 04:41:25,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:25,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39897031] [2024-11-28 04:41:25,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39897031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:41:25,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:41:25,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:41:25,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891138412] [2024-11-28 04:41:25,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:41:25,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:41:25,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:25,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:41:25,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:41:25,818 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-11-28 04:41:25,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:25,864 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2024-11-28 04:41:25,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:41:25,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 24 [2024-11-28 04:41:25,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:25,866 INFO L225 Difference]: With dead ends: 67 [2024-11-28 04:41:25,866 INFO L226 Difference]: Without dead ends: 63 [2024-11-28 04:41:25,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:41:25,867 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 3 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:25,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 87 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:41:25,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-28 04:41:25,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-28 04:41:25,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 56 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:41:25,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 74 transitions. [2024-11-28 04:41:25,888 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 74 transitions. Word has length 24 [2024-11-28 04:41:25,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:25,888 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 74 transitions. [2024-11-28 04:41:25,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-11-28 04:41:25,888 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 74 transitions. [2024-11-28 04:41:25,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 04:41:25,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:25,889 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:25,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:41:25,890 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:41:25,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:25,890 INFO L85 PathProgramCache]: Analyzing trace with hash -948153040, now seen corresponding path program 1 times [2024-11-28 04:41:25,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:25,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487306640] [2024-11-28 04:41:25,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:25,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:26,027 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 04:41:26,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:26,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487306640] [2024-11-28 04:41:26,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487306640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:41:26,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:41:26,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:41:26,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688855927] [2024-11-28 04:41:26,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:41:26,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:41:26,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:26,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:41:26,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:41:26,029 INFO L87 Difference]: Start difference. First operand 63 states and 74 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2024-11-28 04:41:26,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:26,096 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2024-11-28 04:41:26,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:41:26,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 28 [2024-11-28 04:41:26,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:26,097 INFO L225 Difference]: With dead ends: 70 [2024-11-28 04:41:26,097 INFO L226 Difference]: Without dead ends: 61 [2024-11-28 04:41:26,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:41:26,098 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:26,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:41:26,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-28 04:41:26,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2024-11-28 04:41:26,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.2765957446808511) internal successors, (60), 53 states have internal predecessors, (60), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:41:26,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 69 transitions. [2024-11-28 04:41:26,116 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 69 transitions. Word has length 28 [2024-11-28 04:41:26,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:26,116 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 69 transitions. [2024-11-28 04:41:26,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2024-11-28 04:41:26,116 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 69 transitions. [2024-11-28 04:41:26,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-28 04:41:26,117 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:26,117 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:26,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:41:26,118 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:41:26,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:26,118 INFO L85 PathProgramCache]: Analyzing trace with hash -705056948, now seen corresponding path program 2 times [2024-11-28 04:41:26,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:26,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255659685] [2024-11-28 04:41:26,119 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:41:26,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:26,157 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:41:26,157 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:41:26,248 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:41:26,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:26,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255659685] [2024-11-28 04:41:26,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255659685] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:41:26,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074015263] [2024-11-28 04:41:26,249 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:41:26,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:26,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:26,255 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:26,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:41:26,373 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:41:26,373 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:41:26,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:41:26,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:41:26,471 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:41:26,471 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:41:26,567 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:41:26,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074015263] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:41:26,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:41:26,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 04:41:26,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201802078] [2024-11-28 04:41:26,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:41:26,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:41:26,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:26,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:41:26,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:41:26,571 INFO L87 Difference]: Start difference. First operand 59 states and 69 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 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) [2024-11-28 04:41:26,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:26,636 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2024-11-28 04:41:26,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:41:26,637 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 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 29 [2024-11-28 04:41:26,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:26,637 INFO L225 Difference]: With dead ends: 59 [2024-11-28 04:41:26,637 INFO L226 Difference]: Without dead ends: 58 [2024-11-28 04:41:26,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:41:26,638 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 2 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:26,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 142 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:41:26,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-28 04:41:26,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 43. [2024-11-28 04:41:26,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 32 states have (on average 1.28125) internal successors, (41), 37 states have internal predecessors, (41), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:41:26,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2024-11-28 04:41:26,650 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 29 [2024-11-28 04:41:26,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:26,651 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2024-11-28 04:41:26,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 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) [2024-11-28 04:41:26,651 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2024-11-28 04:41:26,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-28 04:41:26,652 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:26,652 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:26,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:41:26,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-28 04:41:26,853 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:41:26,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:26,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1643029719, now seen corresponding path program 1 times [2024-11-28 04:41:26,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:26,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197540597] [2024-11-28 04:41:26,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:26,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:27,018 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-28 04:41:27,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:27,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197540597] [2024-11-28 04:41:27,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197540597] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:41:27,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579753153] [2024-11-28 04:41:27,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:27,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:27,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:27,021 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:27,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:41:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:27,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:41:27,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:41:27,269 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 04:41:27,269 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:41:27,367 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-28 04:41:27,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579753153] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:41:27,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:41:27,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-28 04:41:27,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998795152] [2024-11-28 04:41:27,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:41:27,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:41:27,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:27,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:41:27,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:41:27,369 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:41:27,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:27,473 INFO L93 Difference]: Finished difference Result 84 states and 97 transitions. [2024-11-28 04:41:27,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:41:27,473 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 34 [2024-11-28 04:41:27,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:27,474 INFO L225 Difference]: With dead ends: 84 [2024-11-28 04:41:27,474 INFO L226 Difference]: Without dead ends: 51 [2024-11-28 04:41:27,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:41:27,475 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 22 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:27,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 141 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:41:27,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-28 04:41:27,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-28 04:41:27,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.225) internal successors, (49), 45 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:41:27,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2024-11-28 04:41:27,483 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 34 [2024-11-28 04:41:27,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:27,483 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2024-11-28 04:41:27,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:41:27,483 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2024-11-28 04:41:27,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 04:41:27,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:27,484 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:27,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:41:27,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:27,685 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:41:27,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:27,686 INFO L85 PathProgramCache]: Analyzing trace with hash -775784035, now seen corresponding path program 2 times [2024-11-28 04:41:27,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:27,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554858913] [2024-11-28 04:41:27,686 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:41:27,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:27,727 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:41:27,727 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:41:27,893 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-28 04:41:27,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:27,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554858913] [2024-11-28 04:41:27,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554858913] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:41:27,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289513910] [2024-11-28 04:41:27,893 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:41:27,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:27,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:27,899 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:27,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:41:28,051 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:41:28,052 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:41:28,056 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:41:28,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:41:28,323 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 04:41:28,323 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:41:28,541 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-28 04:41:28,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289513910] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:41:28,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:41:28,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10, 10] total 22 [2024-11-28 04:41:28,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871169999] [2024-11-28 04:41:28,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:41:28,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 04:41:28,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:28,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 04:41:28,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:41:28,545 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 states have internal predecessors, (64), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 04:41:28,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:28,899 INFO L93 Difference]: Finished difference Result 98 states and 115 transitions. [2024-11-28 04:41:28,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:41:28,900 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 states have internal predecessors, (64), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 42 [2024-11-28 04:41:28,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:28,901 INFO L225 Difference]: With dead ends: 98 [2024-11-28 04:41:28,901 INFO L226 Difference]: Without dead ends: 65 [2024-11-28 04:41:28,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=594, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:41:28,903 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 41 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:28,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 190 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:41:28,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-28 04:41:28,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-11-28 04:41:28,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 56 states have (on average 1.125) internal successors, (63), 59 states have internal predecessors, (63), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:41:28,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 72 transitions. [2024-11-28 04:41:28,924 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 72 transitions. Word has length 42 [2024-11-28 04:41:28,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:28,924 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 72 transitions. [2024-11-28 04:41:28,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 states have internal predecessors, (64), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 04:41:28,925 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 72 transitions. [2024-11-28 04:41:28,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-28 04:41:28,926 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:28,926 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:28,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 04:41:29,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:29,131 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:41:29,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:29,131 INFO L85 PathProgramCache]: Analyzing trace with hash -980568468, now seen corresponding path program 1 times [2024-11-28 04:41:29,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:29,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330482674] [2024-11-28 04:41:29,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:29,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:29,364 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-28 04:41:29,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:29,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330482674] [2024-11-28 04:41:29,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330482674] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:41:29,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259764941] [2024-11-28 04:41:29,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:29,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:29,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:29,367 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:29,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:41:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:29,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:41:29,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:41:30,024 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 8 proven. 91 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 04:41:30,024 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:41:30,474 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:41:30,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259764941] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:41:30,475 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:41:30,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 18, 18] total 38 [2024-11-28 04:41:30,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626092087] [2024-11-28 04:41:30,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:41:30,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-28 04:41:30,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:30,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-28 04:41:30,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=1114, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 04:41:30,480 INFO L87 Difference]: Start difference. First operand 65 states and 72 transitions. Second operand has 38 states, 38 states have (on average 2.5526315789473686) internal successors, (97), 38 states have internal predecessors, (97), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 04:41:30,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:30,819 INFO L93 Difference]: Finished difference Result 118 states and 137 transitions. [2024-11-28 04:41:30,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 04:41:30,820 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.5526315789473686) internal successors, (97), 38 states have internal predecessors, (97), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 59 [2024-11-28 04:41:30,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:30,821 INFO L225 Difference]: With dead ends: 118 [2024-11-28 04:41:30,821 INFO L226 Difference]: Without dead ends: 87 [2024-11-28 04:41:30,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=346, Invalid=1376, Unknown=0, NotChecked=0, Total=1722 [2024-11-28 04:41:30,823 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 32 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:30,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 222 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:41:30,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-28 04:41:30,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-28 04:41:30,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 77 states have (on average 1.103896103896104) internal successors, (85), 79 states have internal predecessors, (85), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:41:30,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 97 transitions. [2024-11-28 04:41:30,842 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 97 transitions. Word has length 59 [2024-11-28 04:41:30,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:30,842 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 97 transitions. [2024-11-28 04:41:30,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.5526315789473686) internal successors, (97), 38 states have internal predecessors, (97), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 04:41:30,843 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 97 transitions. [2024-11-28 04:41:30,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 04:41:30,847 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:30,847 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:30,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:41:31,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:31,048 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:41:31,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:31,048 INFO L85 PathProgramCache]: Analyzing trace with hash 328194789, now seen corresponding path program 1 times [2024-11-28 04:41:31,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:31,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856159625] [2024-11-28 04:41:31,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:31,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:31,224 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-11-28 04:41:31,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:31,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856159625] [2024-11-28 04:41:31,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856159625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:41:31,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:41:31,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:41:31,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692233457] [2024-11-28 04:41:31,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:41:31,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:41:31,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:31,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:41:31,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:41:31,227 INFO L87 Difference]: Start difference. First operand 87 states and 97 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-11-28 04:41:31,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:31,250 INFO L93 Difference]: Finished difference Result 87 states and 97 transitions. [2024-11-28 04:41:31,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:41:31,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 74 [2024-11-28 04:41:31,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:31,254 INFO L225 Difference]: With dead ends: 87 [2024-11-28 04:41:31,254 INFO L226 Difference]: Without dead ends: 86 [2024-11-28 04:41:31,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:41:31,255 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 1 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:31,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 83 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:41:31,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-28 04:41:31,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-28 04:41:31,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 77 states have (on average 1.0909090909090908) internal successors, (84), 78 states have internal predecessors, (84), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:41:31,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 96 transitions. [2024-11-28 04:41:31,271 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 96 transitions. Word has length 74 [2024-11-28 04:41:31,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:31,271 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 96 transitions. [2024-11-28 04:41:31,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-11-28 04:41:31,272 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 96 transitions. [2024-11-28 04:41:31,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 04:41:31,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:31,273 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:31,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:41:31,277 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:41:31,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:31,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1584103971, now seen corresponding path program 1 times [2024-11-28 04:41:31,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:31,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475293799] [2024-11-28 04:41:31,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:31,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:31,591 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-28 04:41:31,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:31,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475293799] [2024-11-28 04:41:31,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475293799] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:41:31,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611372052] [2024-11-28 04:41:31,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:31,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:31,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:31,595 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:31,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:41:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:31,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:41:31,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:41:31,857 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-28 04:41:31,858 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:41:31,977 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-28 04:41:31,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611372052] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:41:31,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:41:31,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-28 04:41:31,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767417550] [2024-11-28 04:41:31,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:41:31,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:41:31,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:31,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:41:31,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:41:31,981 INFO L87 Difference]: Start difference. First operand 86 states and 96 transitions. Second operand has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 14 states have internal predecessors, (49), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:41:32,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:32,076 INFO L93 Difference]: Finished difference Result 90 states and 101 transitions. [2024-11-28 04:41:32,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:41:32,077 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 14 states have internal predecessors, (49), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 75 [2024-11-28 04:41:32,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:32,078 INFO L225 Difference]: With dead ends: 90 [2024-11-28 04:41:32,078 INFO L226 Difference]: Without dead ends: 76 [2024-11-28 04:41:32,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:41:32,079 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:32,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 116 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:41:32,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-28 04:41:32,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 70. [2024-11-28 04:41:32,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 64 states have (on average 1.046875) internal successors, (67), 64 states have internal predecessors, (67), 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) [2024-11-28 04:41:32,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 75 transitions. [2024-11-28 04:41:32,096 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 75 transitions. Word has length 75 [2024-11-28 04:41:32,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:32,097 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 75 transitions. [2024-11-28 04:41:32,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 14 states have internal predecessors, (49), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:41:32,097 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 75 transitions. [2024-11-28 04:41:32,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 04:41:32,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:32,099 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:32,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:41:32,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:32,299 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:41:32,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:32,300 INFO L85 PathProgramCache]: Analyzing trace with hash 455843571, now seen corresponding path program 2 times [2024-11-28 04:41:32,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:32,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687993923] [2024-11-28 04:41:32,300 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:41:32,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:32,368 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:41:32,368 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:41:32,578 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-11-28 04:41:32,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:32,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687993923] [2024-11-28 04:41:32,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687993923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:41:32,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520849396] [2024-11-28 04:41:32,579 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:41:32,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:32,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:32,581 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:32,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:41:32,792 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:41:32,793 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:41:32,795 INFO L256 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:41:32,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:41:32,909 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-11-28 04:41:32,909 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:41:33,048 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-11-28 04:41:33,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520849396] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:41:33,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:41:33,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 17 [2024-11-28 04:41:33,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382743462] [2024-11-28 04:41:33,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:41:33,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:41:33,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:33,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:41:33,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:41:33,052 INFO L87 Difference]: Start difference. First operand 70 states and 75 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:41:33,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:33,227 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2024-11-28 04:41:33,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:41:33,227 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 81 [2024-11-28 04:41:33,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:33,228 INFO L225 Difference]: With dead ends: 77 [2024-11-28 04:41:33,228 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:41:33,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=165, Invalid=537, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:41:33,230 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:33,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:41:33,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:41:33,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:41:33,231 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) [2024-11-28 04:41:33,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:41:33,231 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2024-11-28 04:41:33,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:33,232 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:41:33,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:41:33,232 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:41:33,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:41:33,236 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-11-28 04:41:33,236 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-11-28 04:41:33,236 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-11-28 04:41:33,237 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-11-28 04:41:33,237 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-11-28 04:41:33,237 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-11-28 04:41:33,237 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-11-28 04:41:33,237 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-11-28 04:41:33,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:41:33,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:33,441 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:33,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:41:33,670 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:41:33,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:41:33 BoogieIcfgContainer [2024-11-28 04:41:33,691 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:41:33,691 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:41:33,691 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:41:33,692 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:41:33,692 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:22" (3/4) ... [2024-11-28 04:41:33,695 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:41:33,700 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-11-28 04:41:33,705 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-28 04:41:33,706 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 04:41:33,706 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:41:33,822 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:41:33,822 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:41:33,822 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:41:33,824 INFO L158 Benchmark]: Toolchain (without parser) took 12571.68ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 90.4MB in the beginning and 40.7MB in the end (delta: 49.6MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. [2024-11-28 04:41:33,824 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 83.9MB. Free memory was 41.2MB in the beginning and 41.1MB in the end (delta: 100.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:41:33,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 718.13ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 68.1MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:41:33,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.32ms. Allocated memory is still 117.4MB. Free memory was 67.8MB in the beginning and 66.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:41:33,825 INFO L158 Benchmark]: Boogie Preprocessor took 72.83ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 64.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:41:33,826 INFO L158 Benchmark]: RCFGBuilder took 568.68ms. Allocated memory is still 117.4MB. Free memory was 64.2MB in the beginning and 51.1MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:41:33,827 INFO L158 Benchmark]: TraceAbstraction took 11014.61ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 50.6MB in the beginning and 45.4MB in the end (delta: 5.2MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2024-11-28 04:41:33,827 INFO L158 Benchmark]: Witness Printer took 131.28ms. Allocated memory is still 142.6MB. Free memory was 45.4MB in the beginning and 40.7MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:41:33,831 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 83.9MB. Free memory was 41.2MB in the beginning and 41.1MB in the end (delta: 100.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 718.13ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 68.1MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.32ms. Allocated memory is still 117.4MB. Free memory was 67.8MB in the beginning and 66.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 72.83ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 64.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 568.68ms. Allocated memory is still 117.4MB. Free memory was 64.2MB in the beginning and 51.1MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11014.61ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 50.6MB in the beginning and 45.4MB in the end (delta: 5.2MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * Witness Printer took 131.28ms. Allocated memory is still 142.6MB. Free memory was 45.4MB in the beginning and 40.7MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: 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, 41 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 10.7s, OverallIterations: 14, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 113 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 113 mSDsluCounter, 1845 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1438 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 737 IncrementalHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 407 mSDtfsCounter, 737 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 762 GetRequests, 608 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1119 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=11, InterpolantAutomatonStates: 124, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 23 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 888 NumberOfCodeBlocks, 856 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1196 ConstructedInterpolants, 0 QuantifiedInterpolants, 2344 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1780 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 29 InterpolantComputations, 7 PerfectInterpolantSequences, 1819/2154 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 771]: Loop Invariant Derived loop invariant: (j < 2147483649) - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: ((((len <= 10) && (i <= 2147483644)) && (1 <= i)) || ((len <= 10) && (i == 0))) - InvariantResult [Line: 782]: Loop Invariant Derived loop invariant: ((((10 == len) && (1 <= i)) && (i <= 2147483646)) || ((10 == len) && (i == 0))) RESULT: Ultimate proved your program to be correct! [2024-11-28 04:41:33,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0398592-f5a7-4b73-9931-7952b7e64ca8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE