./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.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_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1 --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 bb0a504b43b0de742fcc89ebbe9d313056bb1824edece6c56238a649b6f48626 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:10:34,252 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:10:34,311 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 08:10:34,316 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:10:34,316 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:10:34,338 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:10:34,339 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:10:34,339 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:10:34,340 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:10:34,340 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:10:34,340 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:10:34,340 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:10:34,340 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:10:34,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:10:34,340 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:10:34,341 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:10:34,341 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:10:34,341 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:10:34,341 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:10:34,341 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:10:34,341 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:10:34,341 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:10:34,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:10:34,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:10:34,341 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 08:10:34,342 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 08:10:34,342 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:10:34,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:10:34,342 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:10:34,342 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:10:34,342 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:10:34,342 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:10:34,342 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:10:34,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:10:34,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:10:34,342 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:10:34,343 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:10:34,343 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:10:34,343 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:10:34,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:10:34,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:10:34,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:10:34,343 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:10:34,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:10:34,343 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:10:34,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:10:34,343 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:10:34,343 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:10:34,344 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:10:34,344 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:10:34,344 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_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1 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 -> bb0a504b43b0de742fcc89ebbe9d313056bb1824edece6c56238a649b6f48626 [2024-12-02 08:10:34,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:10:34,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:10:34,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:10:34,612 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:10:34,613 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:10:34,614 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2024-12-02 08:10:37,303 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/data/886405a09/292964cefa60432f9adc84bad0e39440/FLAG5aeabca80 [2024-12-02 08:10:37,546 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:10:37,547 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2024-12-02 08:10:37,561 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/data/886405a09/292964cefa60432f9adc84bad0e39440/FLAG5aeabca80 [2024-12-02 08:10:37,576 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/data/886405a09/292964cefa60432f9adc84bad0e39440 [2024-12-02 08:10:37,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:10:37,580 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:10:37,581 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:10:37,581 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:10:37,585 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:10:37,586 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:10:37" (1/1) ... [2024-12-02 08:10:37,587 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@494aaa01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:37, skipping insertion in model container [2024-12-02 08:10:37,587 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:10:37" (1/1) ... [2024-12-02 08:10:37,624 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:10:38,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:10:38,025 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:10:38,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:10:38,130 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:10:38,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:38 WrapperNode [2024-12-02 08:10:38,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:10:38,132 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:10:38,132 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:10:38,132 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:10:38,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:38" (1/1) ... [2024-12-02 08:10:38,151 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:38" (1/1) ... [2024-12-02 08:10:38,166 INFO L138 Inliner]: procedures = 166, calls = 80, calls flagged for inlining = 24, calls inlined = 6, statements flattened = 98 [2024-12-02 08:10:38,166 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:10:38,167 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:10:38,167 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:10:38,167 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:10:38,173 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:38" (1/1) ... [2024-12-02 08:10:38,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:38" (1/1) ... [2024-12-02 08:10:38,176 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:38" (1/1) ... [2024-12-02 08:10:38,187 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 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]. [2024-12-02 08:10:38,187 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:38" (1/1) ... [2024-12-02 08:10:38,187 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:38" (1/1) ... [2024-12-02 08:10:38,193 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:38" (1/1) ... [2024-12-02 08:10:38,194 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:38" (1/1) ... [2024-12-02 08:10:38,196 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:38" (1/1) ... [2024-12-02 08:10:38,197 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:38" (1/1) ... [2024-12-02 08:10:38,198 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:38" (1/1) ... [2024-12-02 08:10:38,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:10:38,200 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:10:38,200 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:10:38,200 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:10:38,201 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:38" (1/1) ... [2024-12-02 08:10:38,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:10:38,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:10:38,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:10:38,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:10:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 08:10:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 08:10:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 08:10:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:10:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 08:10:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 08:10:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 08:10:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 08:10:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 08:10:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 08:10:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 08:10:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:10:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:10:38,341 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:10:38,343 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:10:38,519 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2024-12-02 08:10:38,519 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:10:38,531 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:10:38,531 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 08:10:38,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:10:38 BoogieIcfgContainer [2024-12-02 08:10:38,532 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:10:38,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:10:38,535 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:10:38,540 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:10:38,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:10:37" (1/3) ... [2024-12-02 08:10:38,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61002119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:10:38, skipping insertion in model container [2024-12-02 08:10:38,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:38" (2/3) ... [2024-12-02 08:10:38,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61002119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:10:38, skipping insertion in model container [2024-12-02 08:10:38,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:10:38" (3/3) ... [2024-12-02 08:10:38,543 INFO L128 eAbstractionObserver]: Analyzing ICFG memleaks_test17_2-2.i [2024-12-02 08:10:38,558 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:10:38,559 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG memleaks_test17_2-2.i that has 2 procedures, 51 locations, 1 initial locations, 4 loop locations, and 10 error locations. [2024-12-02 08:10:38,619 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:10:38,633 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;@75c8a559, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:10:38,633 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-12-02 08:10:38,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 37 states have (on average 1.6216216216216217) internal successors, (60), 47 states have internal predecessors, (60), 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) [2024-12-02 08:10:38,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-02 08:10:38,645 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:38,645 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:38,646 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:38,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:38,652 INFO L85 PathProgramCache]: Analyzing trace with hash -752915524, now seen corresponding path program 1 times [2024-12-02 08:10:38,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:38,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153613810] [2024-12-02 08:10:38,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:38,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:38,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:10:38,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:38,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153613810] [2024-12-02 08:10:38,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153613810] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:10:38,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:10:38,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:10:38,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936434531] [2024-12-02 08:10:38,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:10:38,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:10:38,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:38,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:10:38,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:10:38,862 INFO L87 Difference]: Start difference. First operand has 51 states, 37 states have (on average 1.6216216216216217) internal successors, (60), 47 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-12-02 08:10:38,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:38,879 INFO L93 Difference]: Finished difference Result 97 states and 121 transitions. [2024-12-02 08:10:38,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:10:38,880 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 15 [2024-12-02 08:10:38,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:38,884 INFO L225 Difference]: With dead ends: 97 [2024-12-02 08:10:38,885 INFO L226 Difference]: Without dead ends: 46 [2024-12-02 08:10:38,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:10:38,889 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:38,890 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:10:38,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-12-02 08:10:38,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-12-02 08:10:38,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 42 states have internal predecessors, (49), 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) [2024-12-02 08:10:38,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2024-12-02 08:10:38,920 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 15 [2024-12-02 08:10:38,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:38,921 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2024-12-02 08:10:38,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-12-02 08:10:38,921 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2024-12-02 08:10:38,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-02 08:10:38,922 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:38,922 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:38,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 08:10:38,923 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:38,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:38,924 INFO L85 PathProgramCache]: Analyzing trace with hash -51850946, now seen corresponding path program 1 times [2024-12-02 08:10:38,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:38,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69476002] [2024-12-02 08:10:38,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:38,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:39,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:10:39,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:39,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69476002] [2024-12-02 08:10:39,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69476002] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:10:39,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:10:39,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:10:39,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310244364] [2024-12-02 08:10:39,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:10:39,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:10:39,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:39,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:10:39,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:10:39,100 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-12-02 08:10:39,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:39,148 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2024-12-02 08:10:39,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:10:39,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 15 [2024-12-02 08:10:39,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:39,150 INFO L225 Difference]: With dead ends: 52 [2024-12-02 08:10:39,150 INFO L226 Difference]: Without dead ends: 50 [2024-12-02 08:10:39,150 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 [2024-12-02 08:10:39,151 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 1 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:39,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 139 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:10:39,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-12-02 08:10:39,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-12-02 08:10:39,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 46 states have internal predecessors, (54), 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) [2024-12-02 08:10:39,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2024-12-02 08:10:39,160 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 15 [2024-12-02 08:10:39,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:39,161 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2024-12-02 08:10:39,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-12-02 08:10:39,161 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2024-12-02 08:10:39,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-02 08:10:39,162 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:39,162 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:39,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:10:39,162 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:39,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:39,163 INFO L85 PathProgramCache]: Analyzing trace with hash -844970696, now seen corresponding path program 1 times [2024-12-02 08:10:39,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:39,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11274533] [2024-12-02 08:10:39,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:39,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:39,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:39,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:10:39,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:39,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11274533] [2024-12-02 08:10:39,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11274533] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:10:39,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113497720] [2024-12-02 08:10:39,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:39,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:10:39,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:10:39,329 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:10:39,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:10:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:39,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:10:39,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:10:39,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:10:39,495 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:10:39,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113497720] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:10:39,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:10:39,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-12-02 08:10:39,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173114142] [2024-12-02 08:10:39,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:10:39,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:10:39,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:39,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:10:39,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:10:39,497 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2024-12-02 08:10:39,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:39,549 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2024-12-02 08:10:39,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:10:39,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 19 [2024-12-02 08:10:39,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:39,550 INFO L225 Difference]: With dead ends: 50 [2024-12-02 08:10:39,551 INFO L226 Difference]: Without dead ends: 49 [2024-12-02 08:10:39,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:10:39,552 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 1 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:39,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 179 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:10:39,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-12-02 08:10:39,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-12-02 08:10:39,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 37 states have (on average 1.4324324324324325) 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) [2024-12-02 08:10:39,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2024-12-02 08:10:39,557 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 19 [2024-12-02 08:10:39,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:39,557 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2024-12-02 08:10:39,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2024-12-02 08:10:39,558 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2024-12-02 08:10:39,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-02 08:10:39,558 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:39,558 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:39,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:10:39,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:10:39,759 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:39,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:39,760 INFO L85 PathProgramCache]: Analyzing trace with hash -424287730, now seen corresponding path program 1 times [2024-12-02 08:10:39,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:39,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332652350] [2024-12-02 08:10:39,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:39,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:39,881 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:10:39,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:39,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332652350] [2024-12-02 08:10:39,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332652350] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:10:39,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981071674] [2024-12-02 08:10:39,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:39,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:10:39,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:10:39,884 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:10:39,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:10:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:39,985 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:10:39,987 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:10:40,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:10:40,024 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:10:40,086 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:10:40,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981071674] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:10:40,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:10:40,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-12-02 08:10:40,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141304758] [2024-12-02 08:10:40,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:10:40,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:10:40,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:40,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:10:40,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:10:40,087 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 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) [2024-12-02 08:10:40,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:40,145 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2024-12-02 08:10:40,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:10:40,146 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2024-12-02 08:10:40,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:40,147 INFO L225 Difference]: With dead ends: 62 [2024-12-02 08:10:40,147 INFO L226 Difference]: Without dead ends: 61 [2024-12-02 08:10:40,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:10:40,148 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:40,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 272 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:10:40,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-12-02 08:10:40,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-12-02 08:10:40,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 57 states have internal predecessors, (68), 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) [2024-12-02 08:10:40,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 72 transitions. [2024-12-02 08:10:40,155 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 72 transitions. Word has length 20 [2024-12-02 08:10:40,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:40,155 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 72 transitions. [2024-12-02 08:10:40,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 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) [2024-12-02 08:10:40,155 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2024-12-02 08:10:40,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-02 08:10:40,156 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:40,156 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:40,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:10:40,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:10:40,357 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:40,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:40,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1999974372, now seen corresponding path program 1 times [2024-12-02 08:10:40,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:40,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011648384] [2024-12-02 08:10:40,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:40,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:40,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:10:40,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:40,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011648384] [2024-12-02 08:10:40,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011648384] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:10:40,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:10:40,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:10:40,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008548227] [2024-12-02 08:10:40,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:10:40,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:10:40,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:40,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:10:40,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:10:40,420 INFO L87 Difference]: Start difference. First operand 61 states and 72 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:10:40,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:40,446 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2024-12-02 08:10:40,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:10:40,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2024-12-02 08:10:40,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:40,447 INFO L225 Difference]: With dead ends: 67 [2024-12-02 08:10:40,447 INFO L226 Difference]: Without dead ends: 65 [2024-12-02 08:10:40,447 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 [2024-12-02 08:10:40,448 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 1 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:40,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 140 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:10:40,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-12-02 08:10:40,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-12-02 08:10:40,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 53 states have (on average 1.3584905660377358) internal successors, (72), 61 states have internal predecessors, (72), 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) [2024-12-02 08:10:40,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2024-12-02 08:10:40,454 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 76 transitions. Word has length 20 [2024-12-02 08:10:40,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:40,455 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 76 transitions. [2024-12-02 08:10:40,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:10:40,455 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2024-12-02 08:10:40,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-02 08:10:40,456 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:40,456 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] [2024-12-02 08:10:40,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:10:40,456 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:40,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:40,456 INFO L85 PathProgramCache]: Analyzing trace with hash -827013993, now seen corresponding path program 1 times [2024-12-02 08:10:40,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:40,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429448687] [2024-12-02 08:10:40,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:40,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:40,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:40,521 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 08:10:40,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:40,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429448687] [2024-12-02 08:10:40,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429448687] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:10:40,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:10:40,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:10:40,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713162399] [2024-12-02 08:10:40,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:10:40,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:10:40,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:40,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:10:40,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:10:40,523 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-12-02 08:10:40,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:40,547 INFO L93 Difference]: Finished difference Result 91 states and 105 transitions. [2024-12-02 08:10:40,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:10:40,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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 23 [2024-12-02 08:10:40,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:40,549 INFO L225 Difference]: With dead ends: 91 [2024-12-02 08:10:40,549 INFO L226 Difference]: Without dead ends: 69 [2024-12-02 08:10:40,550 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 [2024-12-02 08:10:40,550 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 0 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:40,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 193 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:10:40,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-12-02 08:10:40,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2024-12-02 08:10:40,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 64 states have internal predecessors, (75), 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) [2024-12-02 08:10:40,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 81 transitions. [2024-12-02 08:10:40,558 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 81 transitions. Word has length 23 [2024-12-02 08:10:40,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:40,558 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 81 transitions. [2024-12-02 08:10:40,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-12-02 08:10:40,558 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 81 transitions. [2024-12-02 08:10:40,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-02 08:10:40,559 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:40,559 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] [2024-12-02 08:10:40,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:10:40,559 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:40,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:40,560 INFO L85 PathProgramCache]: Analyzing trace with hash -827013940, now seen corresponding path program 1 times [2024-12-02 08:10:40,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:40,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257812086] [2024-12-02 08:10:40,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:40,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:40,628 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:10:40,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:40,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257812086] [2024-12-02 08:10:40,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257812086] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:10:40,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:10:40,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:10:40,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942027833] [2024-12-02 08:10:40,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:10:40,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:10:40,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:40,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:10:40,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:10:40,630 INFO L87 Difference]: Start difference. First operand 69 states and 81 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-12-02 08:10:40,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:40,671 INFO L93 Difference]: Finished difference Result 83 states and 99 transitions. [2024-12-02 08:10:40,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:10:40,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2024-12-02 08:10:40,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:40,672 INFO L225 Difference]: With dead ends: 83 [2024-12-02 08:10:40,672 INFO L226 Difference]: Without dead ends: 79 [2024-12-02 08:10:40,673 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 [2024-12-02 08:10:40,673 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 3 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:40,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 127 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:10:40,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-12-02 08:10:40,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-12-02 08:10:40,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 65 states have (on average 1.323076923076923) internal successors, (86), 72 states have internal predecessors, (86), 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) [2024-12-02 08:10:40,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 95 transitions. [2024-12-02 08:10:40,682 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 95 transitions. Word has length 23 [2024-12-02 08:10:40,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:40,682 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 95 transitions. [2024-12-02 08:10:40,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-12-02 08:10:40,682 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 95 transitions. [2024-12-02 08:10:40,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-02 08:10:40,683 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:40,683 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] [2024-12-02 08:10:40,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:10:40,684 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:40,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:40,684 INFO L85 PathProgramCache]: Analyzing trace with hash 2010306974, now seen corresponding path program 1 times [2024-12-02 08:10:40,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:40,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947541632] [2024-12-02 08:10:40,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:40,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:40,766 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:10:40,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:40,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947541632] [2024-12-02 08:10:40,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947541632] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:10:40,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:10:40,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:10:40,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135305496] [2024-12-02 08:10:40,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:10:40,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:10:40,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:40,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:10:40,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:10:40,768 INFO L87 Difference]: Start difference. First operand 79 states and 95 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-12-02 08:10:40,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:40,815 INFO L93 Difference]: Finished difference Result 129 states and 153 transitions. [2024-12-02 08:10:40,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:10:40,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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 24 [2024-12-02 08:10:40,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:40,817 INFO L225 Difference]: With dead ends: 129 [2024-12-02 08:10:40,817 INFO L226 Difference]: Without dead ends: 79 [2024-12-02 08:10:40,818 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:10:40,818 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 32 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:40,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 127 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:10:40,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-12-02 08:10:40,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-12-02 08:10:40,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 72 states have internal predecessors, (85), 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) [2024-12-02 08:10:40,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 94 transitions. [2024-12-02 08:10:40,827 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 94 transitions. Word has length 24 [2024-12-02 08:10:40,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:40,828 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 94 transitions. [2024-12-02 08:10:40,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-12-02 08:10:40,828 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 94 transitions. [2024-12-02 08:10:40,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-02 08:10:40,829 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:40,829 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] [2024-12-02 08:10:40,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:10:40,830 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:40,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:40,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1387086108, now seen corresponding path program 1 times [2024-12-02 08:10:40,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:40,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420869228] [2024-12-02 08:10:40,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:40,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:40,953 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:10:40,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:40,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420869228] [2024-12-02 08:10:40,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420869228] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:10:40,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:10:40,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:10:40,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570751941] [2024-12-02 08:10:40,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:10:40,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:10:40,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:40,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:10:40,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:10:40,955 INFO L87 Difference]: Start difference. First operand 79 states and 94 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-12-02 08:10:41,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:41,015 INFO L93 Difference]: Finished difference Result 91 states and 106 transitions. [2024-12-02 08:10:41,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:10:41,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 28 [2024-12-02 08:10:41,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:41,017 INFO L225 Difference]: With dead ends: 91 [2024-12-02 08:10:41,017 INFO L226 Difference]: Without dead ends: 79 [2024-12-02 08:10:41,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:10:41,018 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 34 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:41,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 134 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:10:41,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-12-02 08:10:41,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-12-02 08:10:41,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 65 states have (on average 1.2923076923076924) internal successors, (84), 72 states have internal predecessors, (84), 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) [2024-12-02 08:10:41,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 93 transitions. [2024-12-02 08:10:41,028 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 93 transitions. Word has length 28 [2024-12-02 08:10:41,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:41,028 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 93 transitions. [2024-12-02 08:10:41,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-12-02 08:10:41,028 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 93 transitions. [2024-12-02 08:10:41,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-02 08:10:41,029 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:41,029 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, 1, 1, 1] [2024-12-02 08:10:41,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:10:41,030 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:41,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:41,030 INFO L85 PathProgramCache]: Analyzing trace with hash -371828552, now seen corresponding path program 1 times [2024-12-02 08:10:41,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:41,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546689397] [2024-12-02 08:10:41,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:41,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:41,112 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 08:10:41,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:41,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546689397] [2024-12-02 08:10:41,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546689397] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:10:41,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:10:41,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:10:41,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245321357] [2024-12-02 08:10:41,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:10:41,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:10:41,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:41,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:10:41,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:10:41,114 INFO L87 Difference]: Start difference. First operand 79 states and 93 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-12-02 08:10:41,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:41,153 INFO L93 Difference]: Finished difference Result 98 states and 114 transitions. [2024-12-02 08:10:41,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:10:41,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 31 [2024-12-02 08:10:41,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:41,155 INFO L225 Difference]: With dead ends: 98 [2024-12-02 08:10:41,155 INFO L226 Difference]: Without dead ends: 80 [2024-12-02 08:10:41,155 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 [2024-12-02 08:10:41,156 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:41,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:10:41,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-12-02 08:10:41,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-12-02 08:10:41,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 73 states have internal predecessors, (85), 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) [2024-12-02 08:10:41,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 94 transitions. [2024-12-02 08:10:41,164 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 94 transitions. Word has length 31 [2024-12-02 08:10:41,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:41,165 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 94 transitions. [2024-12-02 08:10:41,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-12-02 08:10:41,165 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 94 transitions. [2024-12-02 08:10:41,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-12-02 08:10:41,166 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:41,166 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:41,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 08:10:41,166 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:41,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:41,167 INFO L85 PathProgramCache]: Analyzing trace with hash 674697696, now seen corresponding path program 2 times [2024-12-02 08:10:41,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:41,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571107861] [2024-12-02 08:10:41,167 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 08:10:41,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:41,190 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 08:10:41,190 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 08:10:41,241 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 08:10:41,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:41,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571107861] [2024-12-02 08:10:41,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571107861] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:10:41,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158224869] [2024-12-02 08:10:41,241 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 08:10:41,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:10:41,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:10:41,243 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:10:41,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:10:41,321 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 08:10:41,321 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 08:10:41,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:10:41,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:10:41,418 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 08:10:41,418 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:10:41,516 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 08:10:41,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158224869] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:10:41,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:10:41,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 9 [2024-12-02 08:10:41,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664024319] [2024-12-02 08:10:41,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:10:41,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:10:41,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:41,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:10:41,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:10:41,518 INFO L87 Difference]: Start difference. First operand 80 states and 94 transitions. Second operand has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 08:10:41,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:41,611 INFO L93 Difference]: Finished difference Result 80 states and 94 transitions. [2024-12-02 08:10:41,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:10:41,611 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2024-12-02 08:10:41,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:41,612 INFO L225 Difference]: With dead ends: 80 [2024-12-02 08:10:41,612 INFO L226 Difference]: Without dead ends: 79 [2024-12-02 08:10:41,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 54 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:10:41,613 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 48 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:41,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 247 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:10:41,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-12-02 08:10:41,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 64. [2024-12-02 08:10:41,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.2941176470588236) internal successors, (66), 57 states have internal predecessors, (66), 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) [2024-12-02 08:10:41,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions. [2024-12-02 08:10:41,620 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 75 transitions. Word has length 32 [2024-12-02 08:10:41,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:41,621 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 75 transitions. [2024-12-02 08:10:41,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 08:10:41,621 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions. [2024-12-02 08:10:41,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-12-02 08:10:41,622 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:41,622 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, 1, 1, 1] [2024-12-02 08:10:41,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:10:41,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 08:10:41,822 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:41,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:41,823 INFO L85 PathProgramCache]: Analyzing trace with hash -2145449984, now seen corresponding path program 1 times [2024-12-02 08:10:41,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:41,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473350384] [2024-12-02 08:10:41,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:41,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:41,940 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 08:10:41,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:41,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473350384] [2024-12-02 08:10:41,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473350384] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:10:41,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917565433] [2024-12-02 08:10:41,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:41,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:10:41,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:10:41,942 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:10:41,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:10:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:42,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 08:10:42,046 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:10:42,181 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:10:42,181 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:10:42,302 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 08:10:42,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917565433] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:10:42,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:10:42,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 16 [2024-12-02 08:10:42,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574567965] [2024-12-02 08:10:42,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:10:42,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 08:10:42,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:42,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 08:10:42,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:10:42,304 INFO L87 Difference]: Start difference. First operand 64 states and 75 transitions. Second operand has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 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) [2024-12-02 08:10:42,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:42,530 INFO L93 Difference]: Finished difference Result 122 states and 144 transitions. [2024-12-02 08:10:42,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:10:42,530 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 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 37 [2024-12-02 08:10:42,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:42,531 INFO L225 Difference]: With dead ends: 122 [2024-12-02 08:10:42,531 INFO L226 Difference]: Without dead ends: 83 [2024-12-02 08:10:42,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 59 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:10:42,533 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 23 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:42,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 447 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:10:42,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-12-02 08:10:42,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 76. [2024-12-02 08:10:42,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 64 states have (on average 1.234375) internal successors, (79), 67 states have internal predecessors, (79), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 08:10:42,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 91 transitions. [2024-12-02 08:10:42,541 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 91 transitions. Word has length 37 [2024-12-02 08:10:42,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:42,542 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 91 transitions. [2024-12-02 08:10:42,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 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) [2024-12-02 08:10:42,542 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 91 transitions. [2024-12-02 08:10:42,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-12-02 08:10:42,543 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:42,543 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:42,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 08:10:42,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 08:10:42,744 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:42,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:42,745 INFO L85 PathProgramCache]: Analyzing trace with hash -206504726, now seen corresponding path program 1 times [2024-12-02 08:10:42,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:42,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371199818] [2024-12-02 08:10:42,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:42,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:42,842 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 08:10:42,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:42,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371199818] [2024-12-02 08:10:42,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371199818] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:10:42,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095059089] [2024-12-02 08:10:42,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:42,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:10:42,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:10:42,844 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:10:42,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 08:10:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:42,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 08:10:42,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:10:43,041 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 08:10:43,041 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:10:43,139 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 08:10:43,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095059089] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:10:43,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:10:43,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 16 [2024-12-02 08:10:43,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200725431] [2024-12-02 08:10:43,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:10:43,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 08:10:43,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:43,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 08:10:43,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:10:43,141 INFO L87 Difference]: Start difference. First operand 76 states and 91 transitions. Second operand has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 08:10:43,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:43,255 INFO L93 Difference]: Finished difference Result 93 states and 109 transitions. [2024-12-02 08:10:43,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:10:43,256 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2024-12-02 08:10:43,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:43,257 INFO L225 Difference]: With dead ends: 93 [2024-12-02 08:10:43,257 INFO L226 Difference]: Without dead ends: 66 [2024-12-02 08:10:43,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 61 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:10:43,258 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 7 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:43,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 512 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:10:43,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-12-02 08:10:43,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2024-12-02 08:10:43,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 55 states have (on average 1.2181818181818183) internal successors, (67), 58 states have internal predecessors, (67), 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) [2024-12-02 08:10:43,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2024-12-02 08:10:43,263 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 76 transitions. Word has length 38 [2024-12-02 08:10:43,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:43,263 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 76 transitions. [2024-12-02 08:10:43,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 08:10:43,263 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2024-12-02 08:10:43,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-12-02 08:10:43,264 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:43,264 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:43,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 08:10:43,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 08:10:43,466 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:43,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:43,467 INFO L85 PathProgramCache]: Analyzing trace with hash -2029245660, now seen corresponding path program 1 times [2024-12-02 08:10:43,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:43,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524968002] [2024-12-02 08:10:43,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:43,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:43,592 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 08:10:43,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:43,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524968002] [2024-12-02 08:10:43,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524968002] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:10:43,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206681490] [2024-12-02 08:10:43,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:43,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:10:43,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:10:43,595 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:10:43,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 08:10:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:43,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:10:43,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:10:43,746 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 08:10:43,746 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:10:43,821 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 08:10:43,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206681490] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:10:43,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:10:43,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-12-02 08:10:43,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276055556] [2024-12-02 08:10:43,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:10:43,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:10:43,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:43,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:10:43,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:10:43,823 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. Second operand has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 12 states have internal predecessors, (43), 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) [2024-12-02 08:10:43,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:43,897 INFO L93 Difference]: Finished difference Result 97 states and 124 transitions. [2024-12-02 08:10:43,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:10:43,898 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 12 states have internal predecessors, (43), 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 42 [2024-12-02 08:10:43,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:43,899 INFO L225 Difference]: With dead ends: 97 [2024-12-02 08:10:43,899 INFO L226 Difference]: Without dead ends: 95 [2024-12-02 08:10:43,899 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:10:43,900 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 12 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:43,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 198 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:10:43,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-12-02 08:10:43,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 91. [2024-12-02 08:10:43,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 78 states have (on average 1.2307692307692308) internal successors, (96), 78 states have internal predecessors, (96), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (12), 11 states have call predecessors, (12), 6 states have call successors, (12) [2024-12-02 08:10:43,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 114 transitions. [2024-12-02 08:10:43,907 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 114 transitions. Word has length 42 [2024-12-02 08:10:43,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:43,907 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 114 transitions. [2024-12-02 08:10:43,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 12 states have internal predecessors, (43), 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) [2024-12-02 08:10:43,908 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 114 transitions. [2024-12-02 08:10:43,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-12-02 08:10:43,909 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:43,909 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:43,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 08:10:44,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 08:10:44,109 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:44,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:44,110 INFO L85 PathProgramCache]: Analyzing trace with hash -395655463, now seen corresponding path program 1 times [2024-12-02 08:10:44,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:44,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560478367] [2024-12-02 08:10:44,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:44,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:44,213 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 08:10:44,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:44,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560478367] [2024-12-02 08:10:44,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560478367] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:10:44,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596492288] [2024-12-02 08:10:44,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:44,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:10:44,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:10:44,216 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:10:44,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 08:10:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:44,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 08:10:44,337 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:10:44,470 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 08:10:44,470 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:10:44,586 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 08:10:44,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596492288] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:10:44,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:10:44,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 16 [2024-12-02 08:10:44,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003271939] [2024-12-02 08:10:44,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:10:44,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 08:10:44,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:44,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 08:10:44,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:10:44,588 INFO L87 Difference]: Start difference. First operand 91 states and 114 transitions. Second operand has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 08:10:44,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:44,846 INFO L93 Difference]: Finished difference Result 108 states and 132 transitions. [2024-12-02 08:10:44,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 08:10:44,847 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 43 [2024-12-02 08:10:44,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:44,848 INFO L225 Difference]: With dead ends: 108 [2024-12-02 08:10:44,848 INFO L226 Difference]: Without dead ends: 97 [2024-12-02 08:10:44,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 74 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:10:44,849 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 49 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:44,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 326 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:10:44,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-12-02 08:10:44,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2024-12-02 08:10:44,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 82 states have (on average 1.2073170731707317) internal successors, (99), 82 states have internal predecessors, (99), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (12), 11 states have call predecessors, (12), 6 states have call successors, (12) [2024-12-02 08:10:44,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 117 transitions. [2024-12-02 08:10:44,856 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 117 transitions. Word has length 43 [2024-12-02 08:10:44,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:44,857 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 117 transitions. [2024-12-02 08:10:44,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 08:10:44,857 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 117 transitions. [2024-12-02 08:10:44,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-12-02 08:10:44,857 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:44,858 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:44,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 08:10:45,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 08:10:45,058 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:45,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:45,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1837849492, now seen corresponding path program 1 times [2024-12-02 08:10:45,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:45,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916622156] [2024-12-02 08:10:45,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:45,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:45,115 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-02 08:10:45,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:45,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916622156] [2024-12-02 08:10:45,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916622156] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:10:45,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:10:45,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:10:45,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684603592] [2024-12-02 08:10:45,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:10:45,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:10:45,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:45,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:10:45,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:10:45,116 INFO L87 Difference]: Start difference. First operand 95 states and 117 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-12-02 08:10:45,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:45,136 INFO L93 Difference]: Finished difference Result 95 states and 117 transitions. [2024-12-02 08:10:45,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:10:45,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 45 [2024-12-02 08:10:45,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:45,137 INFO L225 Difference]: With dead ends: 95 [2024-12-02 08:10:45,137 INFO L226 Difference]: Without dead ends: 94 [2024-12-02 08:10:45,137 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 [2024-12-02 08:10:45,138 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 1 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:45,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 122 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:10:45,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-12-02 08:10:45,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-12-02 08:10:45,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 82 states have (on average 1.1951219512195121) internal successors, (98), 81 states have internal predecessors, (98), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (12), 11 states have call predecessors, (12), 6 states have call successors, (12) [2024-12-02 08:10:45,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 116 transitions. [2024-12-02 08:10:45,146 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 116 transitions. Word has length 45 [2024-12-02 08:10:45,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:45,146 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 116 transitions. [2024-12-02 08:10:45,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-12-02 08:10:45,147 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 116 transitions. [2024-12-02 08:10:45,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-12-02 08:10:45,147 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:45,147 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:45,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 08:10:45,148 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:45,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:45,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1138759287, now seen corresponding path program 1 times [2024-12-02 08:10:45,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:45,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812989793] [2024-12-02 08:10:45,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:45,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:45,267 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 08:10:45,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:45,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812989793] [2024-12-02 08:10:45,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812989793] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:10:45,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54101423] [2024-12-02 08:10:45,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:45,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:10:45,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:10:45,269 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:10:45,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 08:10:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:45,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:10:45,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:10:45,427 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 08:10:45,427 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:10:45,509 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 08:10:45,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54101423] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:10:45,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:10:45,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-12-02 08:10:45,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671079055] [2024-12-02 08:10:45,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:10:45,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:10:45,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:45,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:10:45,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:10:45,511 INFO L87 Difference]: Start difference. First operand 94 states and 116 transitions. Second operand has 14 states, 13 states have (on average 4.0) internal successors, (52), 14 states have internal predecessors, (52), 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) [2024-12-02 08:10:45,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:45,598 INFO L93 Difference]: Finished difference Result 100 states and 124 transitions. [2024-12-02 08:10:45,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:10:45,599 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.0) internal successors, (52), 14 states have internal predecessors, (52), 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 46 [2024-12-02 08:10:45,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:45,599 INFO L225 Difference]: With dead ends: 100 [2024-12-02 08:10:45,600 INFO L226 Difference]: Without dead ends: 98 [2024-12-02 08:10:45,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:10:45,600 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 6 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:45,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 240 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:10:45,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-12-02 08:10:45,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 90. [2024-12-02 08:10:45,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 80 states have (on average 1.175) internal successors, (94), 77 states have internal predecessors, (94), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (12), 11 states have call predecessors, (12), 6 states have call successors, (12) [2024-12-02 08:10:45,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 112 transitions. [2024-12-02 08:10:45,609 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 112 transitions. Word has length 46 [2024-12-02 08:10:45,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:45,609 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 112 transitions. [2024-12-02 08:10:45,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.0) internal successors, (52), 14 states have internal predecessors, (52), 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) [2024-12-02 08:10:45,609 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 112 transitions. [2024-12-02 08:10:45,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-12-02 08:10:45,610 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:45,610 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:45,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 08:10:45,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 08:10:45,811 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:45,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:45,811 INFO L85 PathProgramCache]: Analyzing trace with hash -804646330, now seen corresponding path program 1 times [2024-12-02 08:10:45,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:45,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012883848] [2024-12-02 08:10:45,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:45,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:46,018 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:10:46,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:46,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012883848] [2024-12-02 08:10:46,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012883848] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:10:46,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858342734] [2024-12-02 08:10:46,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:46,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:10:46,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:10:46,020 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:10:46,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 08:10:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:46,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 08:10:46,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:10:46,259 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:10:46,259 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:10:46,415 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:10:46,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858342734] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:10:46,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:10:46,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 22 [2024-12-02 08:10:46,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364282361] [2024-12-02 08:10:46,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:10:46,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 08:10:46,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:46,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 08:10:46,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:10:46,418 INFO L87 Difference]: Start difference. First operand 90 states and 112 transitions. Second operand has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 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) [2024-12-02 08:10:46,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:46,553 INFO L93 Difference]: Finished difference Result 163 states and 205 transitions. [2024-12-02 08:10:46,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:10:46,554 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 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 47 [2024-12-02 08:10:46,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:46,555 INFO L225 Difference]: With dead ends: 163 [2024-12-02 08:10:46,555 INFO L226 Difference]: Without dead ends: 137 [2024-12-02 08:10:46,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 77 SyntacticMatches, 8 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:10:46,556 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 11 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:46,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 408 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:10:46,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-12-02 08:10:46,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 125. [2024-12-02 08:10:46,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 110 states have (on average 1.1454545454545455) internal successors, (126), 107 states have internal predecessors, (126), 11 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (22), 16 states have call predecessors, (22), 11 states have call successors, (22) [2024-12-02 08:10:46,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 159 transitions. [2024-12-02 08:10:46,565 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 159 transitions. Word has length 47 [2024-12-02 08:10:46,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:46,565 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 159 transitions. [2024-12-02 08:10:46,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 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) [2024-12-02 08:10:46,565 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 159 transitions. [2024-12-02 08:10:46,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-12-02 08:10:46,566 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:46,566 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:46,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 08:10:46,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 08:10:46,767 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:46,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:46,767 INFO L85 PathProgramCache]: Analyzing trace with hash 686136896, now seen corresponding path program 2 times [2024-12-02 08:10:46,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:46,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017132929] [2024-12-02 08:10:46,768 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 08:10:46,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:46,782 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 08:10:46,782 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 08:10:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-12-02 08:10:46,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:46,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017132929] [2024-12-02 08:10:46,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017132929] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:10:46,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93210407] [2024-12-02 08:10:46,837 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 08:10:46,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:10:46,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:10:46,840 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:10:46,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 08:10:46,950 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 08:10:46,950 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 08:10:46,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 08:10:46,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:10:47,069 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-12-02 08:10:47,069 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:10:47,168 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-12-02 08:10:47,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93210407] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:10:47,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:10:47,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 11 [2024-12-02 08:10:47,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055448451] [2024-12-02 08:10:47,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:10:47,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:10:47,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:47,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:10:47,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:10:47,170 INFO L87 Difference]: Start difference. First operand 125 states and 159 transitions. Second operand has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 08:10:47,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:47,251 INFO L93 Difference]: Finished difference Result 125 states and 159 transitions. [2024-12-02 08:10:47,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:10:47,251 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2024-12-02 08:10:47,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:47,252 INFO L225 Difference]: With dead ends: 125 [2024-12-02 08:10:47,252 INFO L226 Difference]: Without dead ends: 100 [2024-12-02 08:10:47,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 90 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:10:47,253 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 10 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:47,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 268 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:10:47,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-12-02 08:10:47,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 53. [2024-12-02 08:10:47,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 45 states have (on average 1.0888888888888888) internal successors, (49), 45 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) [2024-12-02 08:10:47,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2024-12-02 08:10:47,260 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 51 [2024-12-02 08:10:47,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:47,260 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2024-12-02 08:10:47,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 08:10:47,260 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2024-12-02 08:10:47,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-12-02 08:10:47,261 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:47,261 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:47,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 08:10:47,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:10:47,461 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:47,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:47,462 INFO L85 PathProgramCache]: Analyzing trace with hash 74705334, now seen corresponding path program 2 times [2024-12-02 08:10:47,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:47,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837429523] [2024-12-02 08:10:47,462 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 08:10:47,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:47,494 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 08:10:47,494 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 08:10:47,703 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-12-02 08:10:47,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:47,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837429523] [2024-12-02 08:10:47,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837429523] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:10:47,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644929055] [2024-12-02 08:10:47,703 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 08:10:47,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:10:47,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:10:47,705 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:10:47,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 08:10:47,847 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 08:10:47,848 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 08:10:47,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 08:10:47,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:10:48,002 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 80 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 08:10:48,002 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:10:48,155 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 44 proven. 6 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-12-02 08:10:48,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644929055] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:10:48,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:10:48,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 13] total 23 [2024-12-02 08:10:48,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505140902] [2024-12-02 08:10:48,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:10:48,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 08:10:48,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:48,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 08:10:48,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:10:48,157 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 8 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-12-02 08:10:48,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:48,347 INFO L93 Difference]: Finished difference Result 94 states and 108 transitions. [2024-12-02 08:10:48,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 08:10:48,347 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 8 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 72 [2024-12-02 08:10:48,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:48,348 INFO L225 Difference]: With dead ends: 94 [2024-12-02 08:10:48,348 INFO L226 Difference]: Without dead ends: 58 [2024-12-02 08:10:48,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 125 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=684, Unknown=0, NotChecked=0, Total=812 [2024-12-02 08:10:48,349 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 9 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:48,350 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 306 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:10:48,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-12-02 08:10:48,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2024-12-02 08:10:48,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 49 states have (on average 1.0816326530612246) internal successors, (53), 49 states have internal predecessors, (53), 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) [2024-12-02 08:10:48,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2024-12-02 08:10:48,355 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 72 [2024-12-02 08:10:48,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:48,355 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2024-12-02 08:10:48,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 8 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-12-02 08:10:48,356 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2024-12-02 08:10:48,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-12-02 08:10:48,356 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:48,356 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:48,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-12-02 08:10:48,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:10:48,557 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-12-02 08:10:48,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:48,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1772754180, now seen corresponding path program 3 times [2024-12-02 08:10:48,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:48,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998953951] [2024-12-02 08:10:48,558 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 08:10:48,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:48,598 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-12-02 08:10:48,599 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 08:10:48,653 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-12-02 08:10:48,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:48,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998953951] [2024-12-02 08:10:48,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998953951] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:10:48,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915424288] [2024-12-02 08:10:48,653 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 08:10:48,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:10:48,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:10:48,655 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:10:48,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 08:10:48,810 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-12-02 08:10:48,810 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 08:10:48,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 08:10:48,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:10:48,916 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-12-02 08:10:48,916 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:10:49,037 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-12-02 08:10:49,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915424288] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:10:49,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:10:49,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 11 [2024-12-02 08:10:49,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916663629] [2024-12-02 08:10:49,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:10:49,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:10:49,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:49,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:10:49,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:10:49,039 INFO L87 Difference]: Start difference. First operand 57 states and 65 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 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) [2024-12-02 08:10:49,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:49,101 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2024-12-02 08:10:49,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:10:49,101 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 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 76 [2024-12-02 08:10:49,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:49,101 INFO L225 Difference]: With dead ends: 57 [2024-12-02 08:10:49,101 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 08:10:49,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 140 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:10:49,102 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 14 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:49,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 113 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:10:49,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 08:10:49,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 08:10:49,103 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) [2024-12-02 08:10:49,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 08:10:49,103 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2024-12-02 08:10:49,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:49,103 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 08:10:49,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 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) [2024-12-02 08:10:49,103 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 08:10:49,104 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 08:10:49,105 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-12-02 08:10:49,106 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-12-02 08:10:49,106 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-12-02 08:10:49,106 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-12-02 08:10:49,106 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-12-02 08:10:49,106 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-12-02 08:10:49,106 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-12-02 08:10:49,106 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-12-02 08:10:49,106 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-12-02 08:10:49,107 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-12-02 08:10:49,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 08:10:49,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-12-02 08:10:49,310 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:49,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 08:10:49,676 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 08:10:49,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:10:49 BoogieIcfgContainer [2024-12-02 08:10:49,692 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 08:10:49,693 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:10:49,693 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:10:49,693 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:10:49,693 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:10:38" (3/4) ... [2024-12-02 08:10:49,695 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 08:10:49,700 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-12-02 08:10:49,705 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-12-02 08:10:49,706 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-02 08:10:49,706 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 08:10:49,788 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 08:10:49,788 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 08:10:49,789 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:10:49,789 INFO L158 Benchmark]: Toolchain (without parser) took 12209.83ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 91.3MB in the beginning and 90.0MB in the end (delta: 1.3MB). Peak memory consumption was 84.4MB. Max. memory is 16.1GB. [2024-12-02 08:10:49,790 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:10:49,790 INFO L158 Benchmark]: CACSL2BoogieTranslator took 550.35ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 68.7MB in the end (delta: 22.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 08:10:49,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.39ms. Allocated memory is still 117.4MB. Free memory was 68.7MB in the beginning and 66.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:10:49,791 INFO L158 Benchmark]: Boogie Preprocessor took 32.85ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 64.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:10:49,791 INFO L158 Benchmark]: RCFGBuilder took 331.92ms. Allocated memory is still 117.4MB. Free memory was 64.8MB in the beginning and 50.1MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:10:49,791 INFO L158 Benchmark]: TraceAbstraction took 11157.73ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 49.5MB in the beginning and 96.3MB in the end (delta: -46.7MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2024-12-02 08:10:49,792 INFO L158 Benchmark]: Witness Printer took 95.98ms. Allocated memory is still 201.3MB. Free memory was 96.3MB in the beginning and 90.0MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:10:49,793 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 550.35ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 68.7MB in the end (delta: 22.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.39ms. Allocated memory is still 117.4MB. Free memory was 68.7MB in the beginning and 66.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.85ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 64.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 331.92ms. Allocated memory is still 117.4MB. Free memory was 64.8MB in the beginning and 50.1MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11157.73ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 49.5MB in the beginning and 96.3MB in the end (delta: -46.7MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. * Witness Printer took 95.98ms. Allocated memory is still 201.3MB. Free memory was 96.3MB in the beginning and 90.0MB in the end (delta: 6.2MB). 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: 790]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 790]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 772]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 772]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 772]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 772]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: 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, 51 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 10.7s, OverallIterations: 21, TraceHistogramMax: 6, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 265 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 262 mSDsluCounter, 4687 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3825 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1896 IncrementalHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 862 mSDtfsCounter, 1896 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1140 GetRequests, 905 SyntacticMatches, 40 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=18, InterpolantAutomatonStates: 172, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 21 MinimizatonAttempts, 97 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 1270 NumberOfCodeBlocks, 1134 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 1730 ConstructedInterpolants, 0 QuantifiedInterpolants, 3608 SizeOfPredicates, 24 NumberOfNonLiveVariables, 2284 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 44 InterpolantComputations, 10 PerfectInterpolantSequences, 1138/1386 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 10 specifications checked. All of them hold - InvariantResult [Line: 765]: Loop Invariant Derived loop invariant: ((((((((len <= 16777215) && (i == 0)) && (2 <= len)) && (2 <= len)) && (len <= 16777215)) || (((((len <= 16777215) && (i <= 2147483646)) && (2 <= len)) && (1 <= i)) && (len <= 16777215))) || (((1 <= i) && (len == 1)) && (len <= 1))) || (((i == 0) && (len == 1)) && (len == 1))) - InvariantResult [Line: 780]: Loop Invariant Derived loop invariant: ((((len <= 2) && (2 <= i)) || (((1 <= i) && (i <= 2147483646)) && (len <= 16777215))) || ((len <= 16777215) && (i == 0))) - InvariantResult [Line: 772]: Loop Invariant Derived loop invariant: ((((len <= 16777215) && (2 <= len)) && (j <= 2147483648)) || ((((long long) j + 1) <= 0) && (len == 1))) - InvariantResult [Line: 790]: Loop Invariant Derived loop invariant: ((((((1 <= i) && (len <= 16777215)) && (i <= 2147483646)) && (2 <= len)) || (((i == 0) && (len <= 16777215)) && (1 <= len))) || (((len <= 16777215) && (1 <= len)) && (i == 1))) RESULT: Ultimate proved your program to be correct! [2024-12-02 08:10:49,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6346cd3a-270e-4dbb-9574-65c715e26e46/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE