./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC --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 111e613944cc7c4f40e73d8912198083d9e385bb8d4d44cecdc5062eedc235a0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:59:19,041 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:59:19,149 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-23 23:59:19,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:59:19,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:59:19,189 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:59:19,191 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:59:19,191 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:59:19,191 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:59:19,192 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:59:19,193 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:59:19,193 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:59:19,194 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:59:19,194 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:59:19,194 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:59:19,194 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:59:19,194 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:59:19,194 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:59:19,194 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:59:19,195 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:59:19,195 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:59:19,195 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:59:19,195 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:59:19,195 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:59:19,195 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 23:59:19,195 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 23:59:19,195 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:59:19,195 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:59:19,195 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:59:19,195 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:59:19,196 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:59:19,196 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:59:19,196 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:59:19,196 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:59:19,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:59:19,196 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:59:19,196 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:59:19,197 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:59:19,197 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:59:19,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:59:19,197 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:59:19,197 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:59:19,197 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:59:19,197 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:59:19,197 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:59:19,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:59:19,197 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:59:19,198 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:59:19,198 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:59:19,198 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:59:19,198 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_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC 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 -> 111e613944cc7c4f40e73d8912198083d9e385bb8d4d44cecdc5062eedc235a0 [2024-11-23 23:59:19,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:59:19,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:59:19,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:59:19,542 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:59:19,542 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:59:19,544 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound10.c [2024-11-23 23:59:22,586 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/data/21ca5d892/6d88a947134646ce8636ec5d32e34c63/FLAGda6835bf0 [2024-11-23 23:59:22,830 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:59:22,831 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound10.c [2024-11-23 23:59:22,840 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/data/21ca5d892/6d88a947134646ce8636ec5d32e34c63/FLAGda6835bf0 [2024-11-23 23:59:22,854 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/data/21ca5d892/6d88a947134646ce8636ec5d32e34c63 [2024-11-23 23:59:22,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:59:22,858 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:59:22,859 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:59:22,860 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:59:22,863 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:59:22,864 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:59:22" (1/1) ... [2024-11-23 23:59:22,865 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b867ddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:22, skipping insertion in model container [2024-11-23 23:59:22,865 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:59:22" (1/1) ... [2024-11-23 23:59:22,879 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:59:23,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:59:23,077 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:59:23,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:59:23,105 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:59:23,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:23 WrapperNode [2024-11-23 23:59:23,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:59:23,106 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:59:23,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:59:23,107 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:59:23,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:23" (1/1) ... [2024-11-23 23:59:23,119 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:23" (1/1) ... [2024-11-23 23:59:23,132 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2024-11-23 23:59:23,133 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:59:23,133 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:59:23,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:59:23,134 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:59:23,140 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:23" (1/1) ... [2024-11-23 23:59:23,141 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:23" (1/1) ... [2024-11-23 23:59:23,142 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:23" (1/1) ... [2024-11-23 23:59:23,153 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 23:59:23,153 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:23" (1/1) ... [2024-11-23 23:59:23,153 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:23" (1/1) ... [2024-11-23 23:59:23,156 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:23" (1/1) ... [2024-11-23 23:59:23,157 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:23" (1/1) ... [2024-11-23 23:59:23,160 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:23" (1/1) ... [2024-11-23 23:59:23,160 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:23" (1/1) ... [2024-11-23 23:59:23,161 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:23" (1/1) ... [2024-11-23 23:59:23,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:59:23,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:59:23,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:59:23,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:59:23,164 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:23" (1/1) ... [2024-11-23 23:59:23,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:59:23,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:59:23,195 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:59:23,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:59:23,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:59:23,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:59:23,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:59:23,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:59:23,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-23 23:59:23,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-23 23:59:23,294 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:59:23,296 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:59:23,518 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-11-23 23:59:23,518 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:59:23,533 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:59:23,535 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 23:59:23,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:59:23 BoogieIcfgContainer [2024-11-23 23:59:23,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:59:23,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:59:23,539 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:59:23,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:59:23,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:59:22" (1/3) ... [2024-11-23 23:59:23,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c19ec1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:59:23, skipping insertion in model container [2024-11-23 23:59:23,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:23" (2/3) ... [2024-11-23 23:59:23,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c19ec1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:59:23, skipping insertion in model container [2024-11-23 23:59:23,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:59:23" (3/3) ... [2024-11-23 23:59:23,547 INFO L128 eAbstractionObserver]: Analyzing ICFG ps2-ll_unwindbound10.c [2024-11-23 23:59:23,562 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:59:23,564 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ps2-ll_unwindbound10.c that has 2 procedures, 65 locations, 1 initial locations, 1 loop locations, and 24 error locations. [2024-11-23 23:59:23,615 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:59:23,627 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;@66808b6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:59:23,628 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-23 23:59:23,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 61 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 23:59:23,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-23 23:59:23,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:23,637 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-23 23:59:23,638 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:23,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:23,643 INFO L85 PathProgramCache]: Analyzing trace with hash 927109, now seen corresponding path program 1 times [2024-11-23 23:59:23,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:23,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911325930] [2024-11-23 23:59:23,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:23,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:23,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:23,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:23,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911325930] [2024-11-23 23:59:23,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911325930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:59:23,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:59:23,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:59:23,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014553589] [2024-11-23 23:59:23,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:59:23,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:59:23,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:23,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:59:23,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:59:23,787 INFO L87 Difference]: Start difference. First operand has 65 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 61 states have internal predecessors, (65), 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 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:59:23,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:23,808 INFO L93 Difference]: Finished difference Result 125 states and 137 transitions. [2024-11-23 23:59:23,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:59:23,810 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-23 23:59:23,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:23,816 INFO L225 Difference]: With dead ends: 125 [2024-11-23 23:59:23,816 INFO L226 Difference]: Without dead ends: 56 [2024-11-23 23:59:23,819 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 [2024-11-23 23:59:23,822 INFO L435 NwaCegarLoop]: 64 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, 64 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 [2024-11-23 23:59:23,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:59:23,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-23 23:59:23,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-11-23 23:59:23,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 32 states have (on average 1.71875) internal successors, (55), 53 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:59:23,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2024-11-23 23:59:23,871 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 4 [2024-11-23 23:59:23,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:23,871 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2024-11-23 23:59:23,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:59:23,872 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2024-11-23 23:59:23,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-23 23:59:23,872 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:23,872 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-23 23:59:23,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:59:23,873 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:23,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:23,874 INFO L85 PathProgramCache]: Analyzing trace with hash 925636, now seen corresponding path program 1 times [2024-11-23 23:59:23,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:23,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018534044] [2024-11-23 23:59:23,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:23,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:24,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:24,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:24,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018534044] [2024-11-23 23:59:24,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018534044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:59:24,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:59:24,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:59:24,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691904049] [2024-11-23 23:59:24,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:59:24,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:59:24,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:24,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:59:24,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:59:24,015 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:59:24,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:24,082 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2024-11-23 23:59:24,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:59:24,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-23 23:59:24,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:24,084 INFO L225 Difference]: With dead ends: 56 [2024-11-23 23:59:24,084 INFO L226 Difference]: Without dead ends: 55 [2024-11-23 23:59:24,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:59:24,085 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 55 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:24,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 99 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:59:24,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-23 23:59:24,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-23 23:59:24,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 32 states have (on average 1.6875) internal successors, (54), 52 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:59:24,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2024-11-23 23:59:24,093 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 4 [2024-11-23 23:59:24,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:24,093 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2024-11-23 23:59:24,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:59:24,093 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2024-11-23 23:59:24,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-23 23:59:24,094 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:24,094 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-23 23:59:24,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:59:24,094 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:24,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:24,095 INFO L85 PathProgramCache]: Analyzing trace with hash 28694756, now seen corresponding path program 1 times [2024-11-23 23:59:24,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:24,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272378754] [2024-11-23 23:59:24,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:24,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:24,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:24,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:24,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:24,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272378754] [2024-11-23 23:59:24,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272378754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:59:24,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:59:24,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:59:24,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190162303] [2024-11-23 23:59:24,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:59:24,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:59:24,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:24,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:59:24,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:59:24,164 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:59:24,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:24,226 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2024-11-23 23:59:24,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:59:24,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-23 23:59:24,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:24,228 INFO L225 Difference]: With dead ends: 75 [2024-11-23 23:59:24,229 INFO L226 Difference]: Without dead ends: 59 [2024-11-23 23:59:24,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:59:24,230 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 3 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:24,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 152 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:59:24,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-23 23:59:24,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-11-23 23:59:24,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 36 states have (on average 1.6111111111111112) internal successors, (58), 56 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:59:24,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2024-11-23 23:59:24,245 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 5 [2024-11-23 23:59:24,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:24,245 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2024-11-23 23:59:24,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:59:24,246 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2024-11-23 23:59:24,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-23 23:59:24,246 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:24,246 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:59:24,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:59:24,247 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:24,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:24,247 INFO L85 PathProgramCache]: Analyzing trace with hash 147026953, now seen corresponding path program 1 times [2024-11-23 23:59:24,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:24,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672202790] [2024-11-23 23:59:24,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:24,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:59:24,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [206402627] [2024-11-23 23:59:24,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:24,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:24,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:59:24,270 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:59:24,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:59:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:24,340 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:59:24,344 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:59:24,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:24,371 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:59:24,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:24,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672202790] [2024-11-23 23:59:24,372 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:59:24,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206402627] [2024-11-23 23:59:24,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206402627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:59:24,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:59:24,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:59:24,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921490438] [2024-11-23 23:59:24,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:59:24,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:59:24,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:24,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:59:24,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:59:24,374 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:59:24,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:24,489 INFO L93 Difference]: Finished difference Result 91 states and 101 transitions. [2024-11-23 23:59:24,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:59:24,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-23 23:59:24,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:24,490 INFO L225 Difference]: With dead ends: 91 [2024-11-23 23:59:24,491 INFO L226 Difference]: Without dead ends: 87 [2024-11-23 23:59:24,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:59:24,492 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 25 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:24,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 61 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:59:24,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-23 23:59:24,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 75. [2024-11-23 23:59:24,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 51 states have (on average 1.607843137254902) internal successors, (82), 71 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 23:59:24,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 86 transitions. [2024-11-23 23:59:24,500 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 86 transitions. Word has length 8 [2024-11-23 23:59:24,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:24,500 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 86 transitions. [2024-11-23 23:59:24,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:59:24,500 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 86 transitions. [2024-11-23 23:59:24,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-23 23:59:24,501 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:24,501 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:59:24,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 23:59:24,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:24,705 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:24,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:24,706 INFO L85 PathProgramCache]: Analyzing trace with hash 262868299, now seen corresponding path program 1 times [2024-11-23 23:59:24,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:24,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676306545] [2024-11-23 23:59:24,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:24,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:24,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:24,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:24,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676306545] [2024-11-23 23:59:24,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676306545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:59:24,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:59:24,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:59:24,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349280670] [2024-11-23 23:59:24,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:59:24,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:59:24,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:24,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:59:24,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:59:24,758 INFO L87 Difference]: Start difference. First operand 75 states and 86 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:59:24,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:24,877 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2024-11-23 23:59:24,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:59:24,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-23 23:59:24,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:24,879 INFO L225 Difference]: With dead ends: 93 [2024-11-23 23:59:24,879 INFO L226 Difference]: Without dead ends: 85 [2024-11-23 23:59:24,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:59:24,882 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 22 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:24,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 65 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:59:24,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-23 23:59:24,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 80. [2024-11-23 23:59:24,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 56 states have (on average 1.5) internal successors, (84), 76 states have internal predecessors, (84), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 23:59:24,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2024-11-23 23:59:24,895 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 9 [2024-11-23 23:59:24,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:24,895 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2024-11-23 23:59:24,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:59:24,895 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2024-11-23 23:59:24,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-23 23:59:24,896 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:24,896 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:59:24,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:59:24,896 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:24,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:24,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1384168589, now seen corresponding path program 1 times [2024-11-23 23:59:24,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:24,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934309676] [2024-11-23 23:59:24,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:24,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:24,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:24,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:24,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934309676] [2024-11-23 23:59:24,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934309676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:59:24,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:59:24,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:59:24,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772691597] [2024-11-23 23:59:24,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:59:24,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:59:24,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:24,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:59:24,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:59:24,985 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:59:25,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:25,096 INFO L93 Difference]: Finished difference Result 89 states and 93 transitions. [2024-11-23 23:59:25,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:59:25,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-23 23:59:25,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:25,098 INFO L225 Difference]: With dead ends: 89 [2024-11-23 23:59:25,098 INFO L226 Difference]: Without dead ends: 77 [2024-11-23 23:59:25,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:59:25,101 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 41 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:25,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 63 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:59:25,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-23 23:59:25,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2024-11-23 23:59:25,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 49 states have (on average 1.489795918367347) internal successors, (73), 69 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 23:59:25,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2024-11-23 23:59:25,115 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 12 [2024-11-23 23:59:25,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:25,116 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2024-11-23 23:59:25,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:59:25,116 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2024-11-23 23:59:25,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-23 23:59:25,118 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:25,118 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, 1] [2024-11-23 23:59:25,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:59:25,119 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:25,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:25,119 INFO L85 PathProgramCache]: Analyzing trace with hash -931407821, now seen corresponding path program 1 times [2024-11-23 23:59:25,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:25,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18881722] [2024-11-23 23:59:25,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:25,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:25,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:25,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:25,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18881722] [2024-11-23 23:59:25,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18881722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:59:25,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:59:25,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:59:25,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676400615] [2024-11-23 23:59:25,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:59:25,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:59:25,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:25,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:59:25,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:59:25,257 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:59:25,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:25,286 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2024-11-23 23:59:25,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:59:25,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 21 [2024-11-23 23:59:25,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:25,288 INFO L225 Difference]: With dead ends: 75 [2024-11-23 23:59:25,288 INFO L226 Difference]: Without dead ends: 73 [2024-11-23 23:59:25,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:59:25,289 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 1 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:25,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 102 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:59:25,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-23 23:59:25,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-23 23:59:25,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 49 states have (on average 1.4489795918367347) internal successors, (71), 69 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 23:59:25,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 75 transitions. [2024-11-23 23:59:25,296 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 75 transitions. Word has length 21 [2024-11-23 23:59:25,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:25,298 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 75 transitions. [2024-11-23 23:59:25,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:59:25,298 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2024-11-23 23:59:25,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-23 23:59:25,299 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:25,299 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, 1, 1, 1, 1, 1] [2024-11-23 23:59:25,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:59:25,299 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:25,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:25,300 INFO L85 PathProgramCache]: Analyzing trace with hash -104832841, now seen corresponding path program 1 times [2024-11-23 23:59:25,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:25,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868754385] [2024-11-23 23:59:25,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:25,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:25,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:25,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:25,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:25,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868754385] [2024-11-23 23:59:25,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868754385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:59:25,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:59:25,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:59:25,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202003515] [2024-11-23 23:59:25,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:59:25,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:59:25,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:25,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:59:25,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:59:25,468 INFO L87 Difference]: Start difference. First operand 73 states and 75 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:59:25,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:25,600 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2024-11-23 23:59:25,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:59:25,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 25 [2024-11-23 23:59:25,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:25,602 INFO L225 Difference]: With dead ends: 76 [2024-11-23 23:59:25,602 INFO L226 Difference]: Without dead ends: 75 [2024-11-23 23:59:25,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:59:25,603 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 1 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:25,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 78 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:59:25,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-23 23:59:25,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2024-11-23 23:59:25,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 50 states have (on average 1.44) internal successors, (72), 70 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) [2024-11-23 23:59:25,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 76 transitions. [2024-11-23 23:59:25,611 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 76 transitions. Word has length 25 [2024-11-23 23:59:25,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:25,611 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 76 transitions. [2024-11-23 23:59:25,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:59:25,611 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2024-11-23 23:59:25,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-23 23:59:25,612 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:25,612 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, 1, 1, 1, 1, 1, 1] [2024-11-23 23:59:25,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:59:25,613 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:25,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:25,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1045149305, now seen corresponding path program 1 times [2024-11-23 23:59:25,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:25,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101110656] [2024-11-23 23:59:25,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:25,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:25,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:25,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:25,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101110656] [2024-11-23 23:59:25,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101110656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:59:25,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:59:25,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:59:25,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423429965] [2024-11-23 23:59:25,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:59:25,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:59:25,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:25,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:59:25,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:59:25,722 INFO L87 Difference]: Start difference. First operand 74 states and 76 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 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) [2024-11-23 23:59:25,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:25,842 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2024-11-23 23:59:25,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:59:25,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 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 26 [2024-11-23 23:59:25,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:25,843 INFO L225 Difference]: With dead ends: 76 [2024-11-23 23:59:25,843 INFO L226 Difference]: Without dead ends: 75 [2024-11-23 23:59:25,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:59:25,844 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:25,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:59:25,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-23 23:59:25,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-23 23:59:25,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 71 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 23:59:25,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 77 transitions. [2024-11-23 23:59:25,850 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 77 transitions. Word has length 26 [2024-11-23 23:59:25,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:25,851 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 77 transitions. [2024-11-23 23:59:25,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 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) [2024-11-23 23:59:25,851 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 77 transitions. [2024-11-23 23:59:25,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-23 23:59:25,851 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:25,851 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] [2024-11-23 23:59:25,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:59:25,852 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:25,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:25,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1825052365, now seen corresponding path program 1 times [2024-11-23 23:59:25,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:25,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443216044] [2024-11-23 23:59:25,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:25,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:25,934 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:25,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:25,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443216044] [2024-11-23 23:59:25,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443216044] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:59:25,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929642333] [2024-11-23 23:59:25,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:25,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:25,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:59:25,937 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:59:25,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:59:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:25,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:59:25,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:59:26,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:26,105 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:59:26,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929642333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:59:26,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:59:26,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-23 23:59:26,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655149052] [2024-11-23 23:59:26,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:59:26,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:59:26,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:26,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:59:26,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:59:26,107 INFO L87 Difference]: Start difference. First operand 75 states and 77 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:59:26,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:26,168 INFO L93 Difference]: Finished difference Result 90 states and 91 transitions. [2024-11-23 23:59:26,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:59:26,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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 29 [2024-11-23 23:59:26,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:26,171 INFO L225 Difference]: With dead ends: 90 [2024-11-23 23:59:26,171 INFO L226 Difference]: Without dead ends: 89 [2024-11-23 23:59:26,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:59:26,175 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 33 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:26,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 201 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:59:26,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-23 23:59:26,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 74. [2024-11-23 23:59:26,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 51 states have (on average 1.411764705882353) internal successors, (72), 70 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) [2024-11-23 23:59:26,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 76 transitions. [2024-11-23 23:59:26,186 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 76 transitions. Word has length 29 [2024-11-23 23:59:26,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:26,187 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 76 transitions. [2024-11-23 23:59:26,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:59:26,187 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2024-11-23 23:59:26,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-23 23:59:26,188 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:26,188 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] [2024-11-23 23:59:26,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 23:59:26,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:26,389 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:26,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:26,389 INFO L85 PathProgramCache]: Analyzing trace with hash 144048512, now seen corresponding path program 1 times [2024-11-23 23:59:26,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:26,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236064911] [2024-11-23 23:59:26,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:26,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:59:26,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [34296247] [2024-11-23 23:59:26,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:26,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:26,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:59:26,417 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:59:26,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:59:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:26,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:59:26,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:59:26,554 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:26,554 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:59:26,696 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:26,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:26,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236064911] [2024-11-23 23:59:26,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:59:26,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34296247] [2024-11-23 23:59:26,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34296247] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:59:26,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:59:26,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-23 23:59:26,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144543376] [2024-11-23 23:59:26,703 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:59:26,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:59:26,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:26,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:59:26,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:59:26,705 INFO L87 Difference]: Start difference. First operand 74 states and 76 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 23:59:26,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:26,943 INFO L93 Difference]: Finished difference Result 152 states and 187 transitions. [2024-11-23 23:59:26,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:59:26,943 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 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 [2024-11-23 23:59:26,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:26,944 INFO L225 Difference]: With dead ends: 152 [2024-11-23 23:59:26,945 INFO L226 Difference]: Without dead ends: 148 [2024-11-23 23:59:26,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:59:26,946 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 95 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:26,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 119 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:59:26,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-23 23:59:26,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 120. [2024-11-23 23:59:26,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 97 states have (on average 1.4536082474226804) internal successors, (141), 114 states have internal predecessors, (141), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-23 23:59:26,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 149 transitions. [2024-11-23 23:59:26,955 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 149 transitions. Word has length 32 [2024-11-23 23:59:26,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:26,956 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 149 transitions. [2024-11-23 23:59:26,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 23:59:26,956 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 149 transitions. [2024-11-23 23:59:26,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-23 23:59:26,957 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:26,957 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:59:26,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 23:59:27,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:27,158 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:27,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:27,158 INFO L85 PathProgramCache]: Analyzing trace with hash 170536628, now seen corresponding path program 1 times [2024-11-23 23:59:27,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:27,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694806729] [2024-11-23 23:59:27,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:27,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:27,274 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:27,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:27,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694806729] [2024-11-23 23:59:27,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694806729] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:59:27,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290616260] [2024-11-23 23:59:27,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:27,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:27,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:59:27,279 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:59:27,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:59:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:27,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:59:27,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:59:27,492 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:27,492 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:59:27,611 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:27,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290616260] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:59:27,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:59:27,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-23 23:59:27,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21984850] [2024-11-23 23:59:27,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:59:27,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:59:27,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:27,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:59:27,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:59:27,614 INFO L87 Difference]: Start difference. First operand 120 states and 149 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-23 23:59:27,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:27,822 INFO L93 Difference]: Finished difference Result 120 states and 149 transitions. [2024-11-23 23:59:27,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:59:27,823 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 33 [2024-11-23 23:59:27,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:27,825 INFO L225 Difference]: With dead ends: 120 [2024-11-23 23:59:27,825 INFO L226 Difference]: Without dead ends: 117 [2024-11-23 23:59:27,826 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:59:27,826 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 63 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:27,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 100 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:59:27,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-23 23:59:27,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-11-23 23:59:27,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 97 states have (on average 1.3814432989690721) internal successors, (134), 111 states have internal predecessors, (134), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-23 23:59:27,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 142 transitions. [2024-11-23 23:59:27,838 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 142 transitions. Word has length 33 [2024-11-23 23:59:27,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:27,839 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 142 transitions. [2024-11-23 23:59:27,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-23 23:59:27,839 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 142 transitions. [2024-11-23 23:59:27,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-23 23:59:27,840 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:27,840 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:59:27,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 23:59:28,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:28,040 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:28,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:28,041 INFO L85 PathProgramCache]: Analyzing trace with hash 991668226, now seen corresponding path program 1 times [2024-11-23 23:59:28,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:28,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488774032] [2024-11-23 23:59:28,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:28,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:28,141 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:28,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:28,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488774032] [2024-11-23 23:59:28,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488774032] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:59:28,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756224357] [2024-11-23 23:59:28,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:28,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:28,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:59:28,144 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:59:28,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:59:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:28,190 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:59:28,191 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:59:28,331 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:28,332 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:59:28,429 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:28,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756224357] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:59:28,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:59:28,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-23 23:59:28,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775962697] [2024-11-23 23:59:28,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:59:28,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:59:28,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:28,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:59:28,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:59:28,434 INFO L87 Difference]: Start difference. First operand 117 states and 142 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-23 23:59:28,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:28,634 INFO L93 Difference]: Finished difference Result 134 states and 159 transitions. [2024-11-23 23:59:28,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:59:28,635 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 34 [2024-11-23 23:59:28,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:28,636 INFO L225 Difference]: With dead ends: 134 [2024-11-23 23:59:28,637 INFO L226 Difference]: Without dead ends: 127 [2024-11-23 23:59:28,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:59:28,638 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 66 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:28,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 122 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:59:28,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-23 23:59:28,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 117. [2024-11-23 23:59:28,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 101 states have (on average 1.2574257425742574) internal successors, (127), 111 states have internal predecessors, (127), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-23 23:59:28,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 135 transitions. [2024-11-23 23:59:28,647 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 135 transitions. Word has length 34 [2024-11-23 23:59:28,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:28,647 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 135 transitions. [2024-11-23 23:59:28,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-23 23:59:28,648 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 135 transitions. [2024-11-23 23:59:28,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-23 23:59:28,648 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:28,648 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:59:28,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 23:59:28,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:28,849 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:28,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:28,850 INFO L85 PathProgramCache]: Analyzing trace with hash -489572732, now seen corresponding path program 1 times [2024-11-23 23:59:28,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:28,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445073059] [2024-11-23 23:59:28,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:28,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:28,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:28,972 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:28,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:28,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445073059] [2024-11-23 23:59:28,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445073059] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:59:28,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321524083] [2024-11-23 23:59:28,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:28,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:28,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:59:28,976 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:59:28,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 23:59:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:29,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:59:29,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:59:29,244 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:59:29,244 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:59:29,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321524083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:59:29,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:59:29,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-23 23:59:29,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786816907] [2024-11-23 23:59:29,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:59:29,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:59:29,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:29,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:59:29,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:59:29,245 INFO L87 Difference]: Start difference. First operand 117 states and 135 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:59:29,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:29,347 INFO L93 Difference]: Finished difference Result 119 states and 137 transitions. [2024-11-23 23:59:29,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:59:29,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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 36 [2024-11-23 23:59:29,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:29,348 INFO L225 Difference]: With dead ends: 119 [2024-11-23 23:59:29,349 INFO L226 Difference]: Without dead ends: 105 [2024-11-23 23:59:29,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:59:29,349 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 47 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:29,350 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 45 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:59:29,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-23 23:59:29,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-23 23:59:29,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 93 states have (on average 1.1397849462365592) internal successors, (106), 99 states have internal predecessors, (106), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-23 23:59:29,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 114 transitions. [2024-11-23 23:59:29,360 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 114 transitions. Word has length 36 [2024-11-23 23:59:29,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:29,361 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 114 transitions. [2024-11-23 23:59:29,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:59:29,362 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 114 transitions. [2024-11-23 23:59:29,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-23 23:59:29,363 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:29,363 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:59:29,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-23 23:59:29,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:29,564 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:29,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:29,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1274076132, now seen corresponding path program 1 times [2024-11-23 23:59:29,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:29,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27559159] [2024-11-23 23:59:29,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:29,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:29,624 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:59:29,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:29,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27559159] [2024-11-23 23:59:29,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27559159] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:59:29,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637840743] [2024-11-23 23:59:29,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:29,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:29,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:59:29,627 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:59:29,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 23:59:29,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:29,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:59:29,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:59:29,737 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:59:29,737 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:59:29,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637840743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:59:29,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:59:29,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-23 23:59:29,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852879320] [2024-11-23 23:59:29,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:59:29,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:59:29,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:29,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:59:29,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:59:29,739 INFO L87 Difference]: Start difference. First operand 105 states and 114 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 23:59:29,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:29,764 INFO L93 Difference]: Finished difference Result 105 states and 114 transitions. [2024-11-23 23:59:29,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:59:29,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-23 23:59:29,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:29,766 INFO L225 Difference]: With dead ends: 105 [2024-11-23 23:59:29,766 INFO L226 Difference]: Without dead ends: 104 [2024-11-23 23:59:29,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:59:29,766 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 19 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:29,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 64 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:59:29,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-23 23:59:29,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-23 23:59:29,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 93 states have (on average 1.10752688172043) internal successors, (103), 98 states have internal predecessors, (103), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-23 23:59:29,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 111 transitions. [2024-11-23 23:59:29,774 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 111 transitions. Word has length 45 [2024-11-23 23:59:29,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:29,775 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 111 transitions. [2024-11-23 23:59:29,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 23:59:29,775 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 111 transitions. [2024-11-23 23:59:29,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-23 23:59:29,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:29,776 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:59:29,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-23 23:59:29,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:29,976 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:29,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:29,977 INFO L85 PathProgramCache]: Analyzing trace with hash -841654356, now seen corresponding path program 1 times [2024-11-23 23:59:29,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:29,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113984145] [2024-11-23 23:59:29,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:29,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:30,037 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:59:30,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:30,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113984145] [2024-11-23 23:59:30,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113984145] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:59:30,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032908846] [2024-11-23 23:59:30,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:30,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:30,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:59:30,040 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:59:30,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 23:59:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:30,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:59:30,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:59:30,146 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:59:30,146 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:59:30,237 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:59:30,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032908846] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:59:30,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:59:30,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-23 23:59:30,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511489882] [2024-11-23 23:59:30,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:59:30,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:59:30,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:30,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:59:30,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:59:30,239 INFO L87 Difference]: Start difference. First operand 104 states and 111 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-23 23:59:30,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:30,280 INFO L93 Difference]: Finished difference Result 120 states and 126 transitions. [2024-11-23 23:59:30,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:59:30,281 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 46 [2024-11-23 23:59:30,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:30,282 INFO L225 Difference]: With dead ends: 120 [2024-11-23 23:59:30,282 INFO L226 Difference]: Without dead ends: 119 [2024-11-23 23:59:30,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:59:30,283 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 11 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:30,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 140 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:59:30,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-23 23:59:30,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 114. [2024-11-23 23:59:30,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 102 states have (on average 1.088235294117647) internal successors, (111), 107 states have internal predecessors, (111), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-23 23:59:30,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 121 transitions. [2024-11-23 23:59:30,291 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 121 transitions. Word has length 46 [2024-11-23 23:59:30,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:30,291 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 121 transitions. [2024-11-23 23:59:30,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-23 23:59:30,292 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 121 transitions. [2024-11-23 23:59:30,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-23 23:59:30,293 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:30,293 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1] [2024-11-23 23:59:30,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-23 23:59:30,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:30,494 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:30,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:30,494 INFO L85 PathProgramCache]: Analyzing trace with hash -731562777, now seen corresponding path program 1 times [2024-11-23 23:59:30,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:30,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447282278] [2024-11-23 23:59:30,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:30,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:30,721 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 23:59:30,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:30,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447282278] [2024-11-23 23:59:30,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447282278] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:59:30,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740190540] [2024-11-23 23:59:30,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:59:30,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:30,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:59:30,725 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:59:30,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 23:59:30,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:59:30,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:59:30,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:59:31,148 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 23:59:31,149 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:59:31,416 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 23:59:31,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740190540] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:59:31,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:59:31,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2024-11-23 23:59:31,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932914962] [2024-11-23 23:59:31,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:59:31,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-23 23:59:31,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:31,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-23 23:59:31,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=236, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:59:31,419 INFO L87 Difference]: Start difference. First operand 114 states and 121 transitions. Second operand has 20 states, 19 states have (on average 9.368421052631579) internal successors, (178), 20 states have internal predecessors, (178), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-23 23:59:31,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:31,901 INFO L93 Difference]: Finished difference Result 171 states and 190 transitions. [2024-11-23 23:59:31,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:59:31,901 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 9.368421052631579) internal successors, (178), 20 states have internal predecessors, (178), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 74 [2024-11-23 23:59:31,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:31,903 INFO L225 Difference]: With dead ends: 171 [2024-11-23 23:59:31,903 INFO L226 Difference]: Without dead ends: 170 [2024-11-23 23:59:31,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=248, Invalid=402, Unknown=0, NotChecked=0, Total=650 [2024-11-23 23:59:31,905 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 52 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:31,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 116 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:59:31,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-23 23:59:31,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 158. [2024-11-23 23:59:31,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 144 states have (on average 1.1111111111111112) internal successors, (160), 149 states have internal predecessors, (160), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-23 23:59:31,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 174 transitions. [2024-11-23 23:59:31,916 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 174 transitions. Word has length 74 [2024-11-23 23:59:31,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:31,917 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 174 transitions. [2024-11-23 23:59:31,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 9.368421052631579) internal successors, (178), 20 states have internal predecessors, (178), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-23 23:59:31,917 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 174 transitions. [2024-11-23 23:59:31,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-23 23:59:31,918 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:31,918 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2024-11-23 23:59:31,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-23 23:59:32,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-23 23:59:32,119 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:32,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:32,119 INFO L85 PathProgramCache]: Analyzing trace with hash 800514160, now seen corresponding path program 2 times [2024-11-23 23:59:32,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:32,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003368210] [2024-11-23 23:59:32,120 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:59:32,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:32,144 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:59:32,144 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:59:32,352 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 23:59:32,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:32,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003368210] [2024-11-23 23:59:32,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003368210] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:59:32,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329994420] [2024-11-23 23:59:32,352 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:59:32,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:32,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:59:32,355 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:59:32,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 23:59:32,424 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:59:32,424 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:59:32,426 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 23:59:32,429 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:59:32,769 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 23:59:32,769 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:59:33,042 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 23:59:33,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329994420] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:59:33,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:59:33,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-11-23 23:59:33,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859563423] [2024-11-23 23:59:33,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:59:33,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-23 23:59:33,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:33,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-23 23:59:33,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=297, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:59:33,045 INFO L87 Difference]: Start difference. First operand 158 states and 174 transitions. Second operand has 22 states, 21 states have (on average 9.238095238095237) internal successors, (194), 22 states have internal predecessors, (194), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-23 23:59:33,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:33,544 INFO L93 Difference]: Finished difference Result 186 states and 202 transitions. [2024-11-23 23:59:33,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:59:33,545 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 9.238095238095237) internal successors, (194), 22 states have internal predecessors, (194), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 82 [2024-11-23 23:59:33,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:33,546 INFO L225 Difference]: With dead ends: 186 [2024-11-23 23:59:33,546 INFO L226 Difference]: Without dead ends: 174 [2024-11-23 23:59:33,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=321, Invalid=549, Unknown=0, NotChecked=0, Total=870 [2024-11-23 23:59:33,548 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 110 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:33,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 177 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:59:33,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-23 23:59:33,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 166. [2024-11-23 23:59:33,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 152 states have (on average 1.0921052631578947) internal successors, (166), 157 states have internal predecessors, (166), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-23 23:59:33,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 180 transitions. [2024-11-23 23:59:33,560 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 180 transitions. Word has length 82 [2024-11-23 23:59:33,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:33,561 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 180 transitions. [2024-11-23 23:59:33,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 9.238095238095237) internal successors, (194), 22 states have internal predecessors, (194), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-23 23:59:33,561 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 180 transitions. [2024-11-23 23:59:33,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-23 23:59:33,562 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:33,562 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2024-11-23 23:59:33,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-23 23:59:33,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-23 23:59:33,767 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:33,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:33,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1200198683, now seen corresponding path program 2 times [2024-11-23 23:59:33,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:33,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357060935] [2024-11-23 23:59:33,767 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:59:33,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:33,795 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:59:33,796 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:59:33,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [578791903] [2024-11-23 23:59:33,797 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:59:33,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:33,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:59:33,799 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:59:33,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-23 23:59:33,860 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:59:33,860 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:59:33,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-23 23:59:33,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:59:34,020 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-23 23:59:34,020 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:59:34,370 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-23 23:59:34,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:34,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357060935] [2024-11-23 23:59:34,371 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:59:34,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578791903] [2024-11-23 23:59:34,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578791903] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:59:34,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:59:34,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-23 23:59:34,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579174615] [2024-11-23 23:59:34,372 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:59:34,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:59:34,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:34,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:59:34,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:59:34,374 INFO L87 Difference]: Start difference. First operand 166 states and 180 transitions. Second operand has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-23 23:59:34,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:34,864 INFO L93 Difference]: Finished difference Result 249 states and 272 transitions. [2024-11-23 23:59:34,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:59:34,865 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 104 [2024-11-23 23:59:34,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:34,866 INFO L225 Difference]: With dead ends: 249 [2024-11-23 23:59:34,867 INFO L226 Difference]: Without dead ends: 241 [2024-11-23 23:59:34,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:59:34,868 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 146 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:34,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 363 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:59:34,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-11-23 23:59:34,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 224. [2024-11-23 23:59:34,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 207 states have (on average 1.0917874396135265) internal successors, (226), 212 states have internal predecessors, (226), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-23 23:59:34,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 246 transitions. [2024-11-23 23:59:34,881 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 246 transitions. Word has length 104 [2024-11-23 23:59:34,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:34,881 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 246 transitions. [2024-11-23 23:59:34,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-23 23:59:34,882 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 246 transitions. [2024-11-23 23:59:34,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-23 23:59:34,883 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:34,883 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1] [2024-11-23 23:59:34,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-23 23:59:35,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:35,083 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:35,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:35,084 INFO L85 PathProgramCache]: Analyzing trace with hash -2092616367, now seen corresponding path program 2 times [2024-11-23 23:59:35,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:35,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127140829] [2024-11-23 23:59:35,084 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:59:35,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:35,096 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:59:35,096 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:59:35,120 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-23 23:59:35,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:35,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127140829] [2024-11-23 23:59:35,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127140829] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:59:35,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039690460] [2024-11-23 23:59:35,121 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:59:35,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:35,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:59:35,123 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:59:35,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-23 23:59:35,165 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:59:35,166 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:59:35,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:59:35,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:59:35,321 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-23 23:59:35,321 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:59:35,512 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-23 23:59:35,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039690460] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:59:35,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:59:35,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-23 23:59:35,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694190076] [2024-11-23 23:59:35,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:59:35,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:59:35,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:35,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:59:35,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:59:35,514 INFO L87 Difference]: Start difference. First operand 224 states and 246 transitions. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 23:59:35,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:35,545 INFO L93 Difference]: Finished difference Result 224 states and 246 transitions. [2024-11-23 23:59:35,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:59:35,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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 118 [2024-11-23 23:59:35,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:35,547 INFO L225 Difference]: With dead ends: 224 [2024-11-23 23:59:35,547 INFO L226 Difference]: Without dead ends: 223 [2024-11-23 23:59:35,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:59:35,547 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 55 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:35,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 72 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:59:35,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-23 23:59:35,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2024-11-23 23:59:35,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 207 states have (on average 1.0628019323671498) internal successors, (220), 211 states have internal predecessors, (220), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-23 23:59:35,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 240 transitions. [2024-11-23 23:59:35,560 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 240 transitions. Word has length 118 [2024-11-23 23:59:35,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:35,561 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 240 transitions. [2024-11-23 23:59:35,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 23:59:35,561 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 240 transitions. [2024-11-23 23:59:35,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-23 23:59:35,563 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:35,563 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1] [2024-11-23 23:59:35,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-23 23:59:35,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:35,764 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:35,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:35,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1480904131, now seen corresponding path program 2 times [2024-11-23 23:59:35,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:35,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577854758] [2024-11-23 23:59:35,764 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:59:35,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:35,806 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:59:35,806 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:59:36,362 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-23 23:59:36,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:36,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577854758] [2024-11-23 23:59:36,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577854758] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:59:36,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565697610] [2024-11-23 23:59:36,362 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:59:36,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:36,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:59:36,365 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:59:36,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-23 23:59:36,418 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 23:59:36,418 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:59:36,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:59:36,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:59:36,679 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-11-23 23:59:36,679 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:59:36,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565697610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:59:36,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:59:36,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 20 [2024-11-23 23:59:36,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242903852] [2024-11-23 23:59:36,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:59:36,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:59:36,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:59:36,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:59:36,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:59:36,682 INFO L87 Difference]: Start difference. First operand 223 states and 240 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 23:59:36,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:59:36,827 INFO L93 Difference]: Finished difference Result 225 states and 242 transitions. [2024-11-23 23:59:36,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:59:36,827 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 170 [2024-11-23 23:59:36,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:59:36,829 INFO L225 Difference]: With dead ends: 225 [2024-11-23 23:59:36,829 INFO L226 Difference]: Without dead ends: 224 [2024-11-23 23:59:36,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:59:36,831 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 25 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:59:36,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 76 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:59:36,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-23 23:59:36,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 222. [2024-11-23 23:59:36,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 207 states have (on average 1.0434782608695652) internal successors, (216), 210 states have internal predecessors, (216), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-23 23:59:36,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 236 transitions. [2024-11-23 23:59:36,849 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 236 transitions. Word has length 170 [2024-11-23 23:59:36,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:59:36,850 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 236 transitions. [2024-11-23 23:59:36,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 23:59:36,850 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 236 transitions. [2024-11-23 23:59:36,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-23 23:59:36,852 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:59:36,852 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1] [2024-11-23 23:59:36,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-23 23:59:37,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-23 23:59:37,056 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-23 23:59:37,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:59:37,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1305859404, now seen corresponding path program 3 times [2024-11-23 23:59:37,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:59:37,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437566401] [2024-11-23 23:59:37,056 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:59:37,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:59:37,162 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-23 23:59:37,162 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:59:37,701 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 476 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-23 23:59:37,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:59:37,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437566401] [2024-11-23 23:59:37,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437566401] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:59:37,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580468622] [2024-11-23 23:59:37,701 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:59:37,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:59:37,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:59:37,703 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:59:37,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-23 23:59:37,761 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-23 23:59:37,762 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:59:37,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:59:37,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:59:46,019 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|))) (let ((.cse0 (div (+ .cse1 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) 2))) (and (<= |c_ULTIMATE.start_main_~x~0#1| (+ |c_ULTIMATE.start_main_~y~0#1| .cse0)) (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| .cse1) 2) 0) (<= .cse0 4611686018427387903)))) is different from true [2024-11-24 00:00:14,209 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~y~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (and (= (mod (+ |ULTIMATE.start_main_~y~0#1| .cse0) 2) 0) (<= .cse0 9223372036854775807) (<= |c_ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~y~0#1| (div (+ (* (- 1) |ULTIMATE.start_main_~y~0#1|) .cse0) 2)))))) is different from true [2024-11-24 00:00:18,244 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-11-24 00:00:18,244 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:00:18,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580468622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:00:18,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:00:18,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 23 [2024-11-24 00:00:18,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708306169] [2024-11-24 00:00:18,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:00:18,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:00:18,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:00:18,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:00:18,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=383, Unknown=2, NotChecked=82, Total=552 [2024-11-24 00:00:18,247 INFO L87 Difference]: Start difference. First operand 222 states and 236 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-24 00:00:18,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:00:18,436 INFO L93 Difference]: Finished difference Result 224 states and 238 transitions. [2024-11-24 00:00:18,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:00:18,437 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 178 [2024-11-24 00:00:18,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:00:18,438 INFO L225 Difference]: With dead ends: 224 [2024-11-24 00:00:18,438 INFO L226 Difference]: Without dead ends: 223 [2024-11-24 00:00:18,439 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 171 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=89, Invalid=423, Unknown=2, NotChecked=86, Total=600 [2024-11-24 00:00:18,441 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 29 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 154 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:00:18,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 62 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 154 Unchecked, 0.1s Time] [2024-11-24 00:00:18,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-24 00:00:18,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 221. [2024-11-24 00:00:18,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 207 states have (on average 1.0289855072463767) internal successors, (213), 209 states have internal predecessors, (213), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-24 00:00:18,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 233 transitions. [2024-11-24 00:00:18,463 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 233 transitions. Word has length 178 [2024-11-24 00:00:18,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:00:18,463 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 233 transitions. [2024-11-24 00:00:18,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-24 00:00:18,464 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 233 transitions. [2024-11-24 00:00:18,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-24 00:00:18,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:00:18,466 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:00:18,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-24 00:00:18,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-24 00:00:18,667 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-24 00:00:18,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:00:18,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1308845454, now seen corresponding path program 1 times [2024-11-24 00:00:18,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:00:18,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201634769] [2024-11-24 00:00:18,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:00:18,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:00:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:00:19,439 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 448 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 00:00:19,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:00:19,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201634769] [2024-11-24 00:00:19,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201634769] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:00:19,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223386212] [2024-11-24 00:00:19,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:00:19,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:00:19,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:00:19,442 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:00:19,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-24 00:00:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:00:19,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 00:00:19,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:00:20,959 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 448 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 00:00:20,960 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:00:22,246 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 448 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-24 00:00:22,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223386212] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:00:22,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:00:22,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 45 [2024-11-24 00:00:22,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233446393] [2024-11-24 00:00:22,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:00:22,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-24 00:00:22,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:00:22,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-24 00:00:22,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=1475, Unknown=0, NotChecked=0, Total=2070 [2024-11-24 00:00:22,252 INFO L87 Difference]: Start difference. First operand 221 states and 233 transitions. Second operand has 46 states, 45 states have (on average 9.377777777777778) internal successors, (422), 46 states have internal predecessors, (422), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:00:24,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:00:24,793 INFO L93 Difference]: Finished difference Result 356 states and 385 transitions. [2024-11-24 00:00:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-24 00:00:24,794 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 9.377777777777778) internal successors, (422), 46 states have internal predecessors, (422), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Word has length 178 [2024-11-24 00:00:24,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:00:24,796 INFO L225 Difference]: With dead ends: 356 [2024-11-24 00:00:24,796 INFO L226 Difference]: Without dead ends: 333 [2024-11-24 00:00:24,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1453 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1375, Invalid=2915, Unknown=0, NotChecked=0, Total=4290 [2024-11-24 00:00:24,799 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 331 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:00:24,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 302 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:00:24,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-24 00:00:24,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 319. [2024-11-24 00:00:24,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 300 states have (on average 1.04) internal successors, (312), 302 states have internal predecessors, (312), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-24 00:00:24,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 342 transitions. [2024-11-24 00:00:24,831 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 342 transitions. Word has length 178 [2024-11-24 00:00:24,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:00:24,833 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 342 transitions. [2024-11-24 00:00:24,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 9.377777777777778) internal successors, (422), 46 states have internal predecessors, (422), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:00:24,834 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 342 transitions. [2024-11-24 00:00:24,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-24 00:00:24,838 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:00:24,838 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1] [2024-11-24 00:00:24,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-24 00:00:25,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-24 00:00:25,043 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-24 00:00:25,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:00:25,043 INFO L85 PathProgramCache]: Analyzing trace with hash -522933841, now seen corresponding path program 3 times [2024-11-24 00:00:25,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:00:25,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321225258] [2024-11-24 00:00:25,044 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 00:00:25,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:00:25,153 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-24 00:00:25,153 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:00:27,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 935 proven. 25 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-24 00:00:27,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:00:27,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321225258] [2024-11-24 00:00:27,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321225258] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:00:27,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624865264] [2024-11-24 00:00:27,115 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 00:00:27,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:00:27,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:00:27,119 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:00:27,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-24 00:00:27,331 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-24 00:00:27,331 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:00:27,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 00:00:27,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:00:27,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 1130 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:00:27,875 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:00:28,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 950 proven. 10 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-24 00:00:28,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624865264] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:00:28,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:00:28,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 23, 24] total 30 [2024-11-24 00:00:28,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393520950] [2024-11-24 00:00:28,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:00:28,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-24 00:00:28,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:00:28,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-24 00:00:28,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=622, Unknown=0, NotChecked=0, Total=870 [2024-11-24 00:00:28,661 INFO L87 Difference]: Start difference. First operand 319 states and 342 transitions. Second operand has 30 states, 30 states have (on average 8.1) internal successors, (243), 30 states have internal predecessors, (243), 10 states have call successors, (20), 11 states have call predecessors, (20), 11 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2024-11-24 00:00:29,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:00:29,370 INFO L93 Difference]: Finished difference Result 362 states and 374 transitions. [2024-11-24 00:00:29,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-24 00:00:29,371 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.1) internal successors, (243), 30 states have internal predecessors, (243), 10 states have call successors, (20), 11 states have call predecessors, (20), 11 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) Word has length 248 [2024-11-24 00:00:29,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:00:29,373 INFO L225 Difference]: With dead ends: 362 [2024-11-24 00:00:29,374 INFO L226 Difference]: Without dead ends: 249 [2024-11-24 00:00:29,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 475 SyntacticMatches, 21 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1033 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=659, Invalid=1411, Unknown=0, NotChecked=0, Total=2070 [2024-11-24 00:00:29,375 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 35 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:00:29,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 1103 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:00:29,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-24 00:00:29,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2024-11-24 00:00:29,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 228 states have (on average 1.0) internal successors, (228), 228 states have internal predecessors, (228), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-24 00:00:29,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 248 transitions. [2024-11-24 00:00:29,399 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 248 transitions. Word has length 248 [2024-11-24 00:00:29,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:00:29,400 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 248 transitions. [2024-11-24 00:00:29,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.1) internal successors, (243), 30 states have internal predecessors, (243), 10 states have call successors, (20), 11 states have call predecessors, (20), 11 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2024-11-24 00:00:29,400 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 248 transitions. [2024-11-24 00:00:29,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-24 00:00:29,403 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:00:29,404 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2024-11-24 00:00:29,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-24 00:00:29,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-24 00:00:29,608 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-24 00:00:29,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:00:29,608 INFO L85 PathProgramCache]: Analyzing trace with hash -522930735, now seen corresponding path program 1 times [2024-11-24 00:00:29,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:00:29,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10862804] [2024-11-24 00:00:29,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:00:29,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:00:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:00:29,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1318833999] [2024-11-24 00:00:29,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:00:29,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:00:29,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:00:29,676 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:00:29,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-24 00:00:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:00:29,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 00:00:29,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:00:30,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 0 proven. 940 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-24 00:00:30,456 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:00:31,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 0 proven. 940 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-24 00:00:31,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:00:31,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10862804] [2024-11-24 00:00:31,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:00:31,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318833999] [2024-11-24 00:00:31,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318833999] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:00:31,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:00:31,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-11-24 00:00:31,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903317353] [2024-11-24 00:00:31,809 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:00:31,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-24 00:00:31,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:00:31,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-24 00:00:31,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:00:31,812 INFO L87 Difference]: Start difference. First operand 249 states and 248 transitions. Second operand has 24 states, 23 states have (on average 17.304347826086957) internal successors, (398), 24 states have internal predecessors, (398), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:00:32,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:00:32,967 INFO L93 Difference]: Finished difference Result 249 states and 248 transitions. [2024-11-24 00:00:32,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:00:32,968 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 17.304347826086957) internal successors, (398), 24 states have internal predecessors, (398), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 248 [2024-11-24 00:00:32,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:00:32,969 INFO L225 Difference]: With dead ends: 249 [2024-11-24 00:00:32,970 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 00:00:32,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:00:32,971 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 1221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:00:32,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1227 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1221 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:00:32,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 00:00:32,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 00:00:32,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:00:32,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 00:00:32,973 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 248 [2024-11-24 00:00:32,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:00:32,973 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 00:00:32,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 17.304347826086957) internal successors, (398), 24 states have internal predecessors, (398), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:00:32,974 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 00:00:32,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 00:00:32,977 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2024-11-24 00:00:32,978 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2024-11-24 00:00:32,978 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2024-11-24 00:00:32,978 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2024-11-24 00:00:32,978 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2024-11-24 00:00:32,978 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2024-11-24 00:00:32,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2024-11-24 00:00:32,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2024-11-24 00:00:32,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2024-11-24 00:00:32,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2024-11-24 00:00:32,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2024-11-24 00:00:32,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2024-11-24 00:00:32,979 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2024-11-24 00:00:32,980 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2024-11-24 00:00:32,980 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2024-11-24 00:00:32,980 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2024-11-24 00:00:32,980 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2024-11-24 00:00:32,980 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2024-11-24 00:00:32,980 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2024-11-24 00:00:32,981 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2024-11-24 00:00:32,981 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2024-11-24 00:00:32,981 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2024-11-24 00:00:32,981 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2024-11-24 00:00:32,981 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2024-11-24 00:00:32,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-24 00:00:33,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-24 00:00:33,186 INFO L422 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:00:33,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 00:00:33,957 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:00:33,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:00:33 BoogieIcfgContainer [2024-11-24 00:00:33,995 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:00:33,996 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:00:33,996 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:00:33,996 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:00:33,997 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:59:23" (3/4) ... [2024-11-24 00:00:34,002 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 00:00:34,008 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-24 00:00:34,013 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-24 00:00:34,014 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-24 00:00:34,014 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 00:00:34,014 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 00:00:34,108 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 00:00:34,108 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 00:00:34,109 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:00:34,110 INFO L158 Benchmark]: Toolchain (without parser) took 71251.68ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 92.8MB in the beginning and 114.3MB in the end (delta: -21.4MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2024-11-24 00:00:34,110 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 117.4MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:00:34,110 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.47ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 82.0MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:00:34,111 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.49ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 80.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:00:34,111 INFO L158 Benchmark]: Boogie Preprocessor took 28.96ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.6MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:00:34,111 INFO L158 Benchmark]: RCFGBuilder took 373.51ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 66.4MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:00:34,112 INFO L158 Benchmark]: TraceAbstraction took 70456.80ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 65.8MB in the beginning and 118.9MB in the end (delta: -53.2MB). Peak memory consumption was 74.9MB. Max. memory is 16.1GB. [2024-11-24 00:00:34,112 INFO L158 Benchmark]: Witness Printer took 112.66ms. Allocated memory is still 176.2MB. Free memory was 118.9MB in the beginning and 114.3MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:00:34,114 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 117.4MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.47ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 82.0MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.49ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 80.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.96ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.6MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 373.51ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 66.4MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 70456.80ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 65.8MB in the beginning and 118.9MB in the end (delta: -53.2MB). Peak memory consumption was 74.9MB. Max. memory is 16.1GB. * Witness Printer took 112.66ms. Allocated memory is still 176.2MB. Free memory was 118.9MB in the beginning and 114.3MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: 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, 65 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 69.6s, OverallIterations: 25, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1276 SdHoareTripleChecker+Valid, 5.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1265 mSDsluCounter, 5035 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 154 IncrementalHoareTripleChecker+Unchecked, 3851 mSDsCounter, 151 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3848 IncrementalHoareTripleChecker+Invalid, 4153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 151 mSolverCounterUnsat, 1184 mSDtfsCounter, 3848 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3037 GetRequests, 2706 SyntacticMatches, 22 SemanticMatches, 309 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 3133 ImplicationChecksByTransitivity, 15.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=319occurred in iteration=23, InterpolantAutomatonStates: 215, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 25 MinimizatonAttempts, 135 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 55.6s InterpolantComputationTime, 3432 NumberOfCodeBlocks, 2952 NumberOfCodeBlocksAsserted, 75 NumberOfCheckSat, 4188 ConstructedInterpolants, 4 QuantifiedInterpolants, 17880 SizeOfPredicates, 29 NumberOfNonLiveVariables, 2421 ConjunctsInSsa, 149 ConjunctsInUnsatCore, 49 InterpolantComputations, 14 PerfectInterpolantSequences, 6035/11077 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 24 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((((((((((((counter <= 10) && (c == 1)) && (k <= 2147483647)) && (x == 1)) && (1 <= counter)) && (y == 1)) || ((((((((counter <= 10) && (c <= 9223372036854775806)) && (x <= 28)) && (7 <= x)) && (7 == y)) && (1 <= c)) && (k <= 2147483647)) && (7 <= counter))) || ((((((((counter <= 10) && (5 <= x)) && (5 == y)) && (c <= 9223372036854775806)) && (1 <= c)) && (k <= 2147483647)) && (x <= 15)) && (5 <= counter))) || ((((((((counter <= 10) && (y == 4)) && (c <= 9223372036854775806)) && (1 <= c)) && (k <= 2147483647)) && (x <= 10)) && (4 <= counter)) && (4 <= x))) || ((((((((counter <= 10) && (c <= 9223372036854775806)) && (1 <= c)) && (k <= 2147483647)) && (3 == y)) && (x <= 6)) && (3 <= x)) && (3 <= counter))) || (((((((counter == 10) && (c <= 9223372036854775806)) && (1 <= c)) && (x <= 55)) && (k <= 2147483647)) && (y == 10)) && (10 <= x))) || ((((((((counter <= 10) && (8 <= x)) && (c <= 9223372036854775806)) && (x <= 36)) && (1 <= c)) && (k <= 2147483647)) && (8 <= counter)) && (y == 8))) || (((((c == 0) && (k <= 2147483647)) && (y == 0)) && (counter == 0)) && (x == 0))) || ((((((((counter <= 10) && (c <= 9223372036854775806)) && (1 <= c)) && (k <= 2147483647)) && (9 <= counter)) && (x <= 45)) && (9 <= x)) && (9 == y))) || ((((((((2 <= x) && (2 <= counter)) && (counter <= 10)) && (1 <= c)) && (k <= 2147483647)) && (2 == y)) && (x <= 3)) && (c <= 9223372036854775805))) || ((((((((6 == y) && (counter <= 10)) && (6 <= x)) && (c <= 9223372036854775806)) && (1 <= c)) && (k <= 2147483647)) && (x <= 21)) && (6 <= counter))) RESULT: Ultimate proved your program to be correct! [2024-11-24 00:00:34,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75d6e1bd-38c5-4e3c-95c4-e97c18c7f024/bin/uautomizer-verify-LYvppIcaGC/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