./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 04018145d5ace4c3357fe1e5023a2cdd8af65b0f762a2636eda0df151f06b137 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:55:41,938 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:55:42,064 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 02:55:42,076 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:55:42,076 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:55:42,116 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:55:42,117 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:55:42,117 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:55:42,118 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:55:42,118 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:55:42,119 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:55:42,120 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:55:42,121 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:55:42,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:55:42,122 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:55:42,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:55:42,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:55:42,122 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:55:42,122 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:55:42,122 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:55:42,122 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:55:42,122 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:55:42,123 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:55:42,123 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:55:42,123 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 02:55:42,123 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:55:42,123 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:55:42,123 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:55:42,123 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:55:42,123 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:55:42,124 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:55:42,124 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:55:42,124 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:55:42,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:55:42,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:55:42,124 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:55:42,124 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:55:42,124 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:55:42,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:55:42,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:55:42,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:55:42,125 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:55:42,125 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:55:42,125 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:55:42,125 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:55:42,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:55:42,126 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:55:42,126 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:55:42,127 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:55:42,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:55:42,127 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_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04018145d5ace4c3357fe1e5023a2cdd8af65b0f762a2636eda0df151f06b137 [2024-11-28 02:55:42,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:55:42,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:55:42,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:55:42,569 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:55:42,570 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:55:42,573 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound100.c [2024-11-28 02:55:46,348 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/data/e91e19383/062566da88404e11869b4e8ff74b3799/FLAG756213505 [2024-11-28 02:55:46,727 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:55:46,731 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound100.c [2024-11-28 02:55:46,741 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/data/e91e19383/062566da88404e11869b4e8ff74b3799/FLAG756213505 [2024-11-28 02:55:46,759 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/data/e91e19383/062566da88404e11869b4e8ff74b3799 [2024-11-28 02:55:46,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:55:46,763 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:55:46,765 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:55:46,766 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:55:46,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:55:46,772 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:55:46" (1/1) ... [2024-11-28 02:55:46,773 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@472911b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:46, skipping insertion in model container [2024-11-28 02:55:46,773 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:55:46" (1/1) ... [2024-11-28 02:55:46,791 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:55:46,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:55:47,009 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:55:47,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:55:47,064 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:55:47,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:47 WrapperNode [2024-11-28 02:55:47,065 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:55:47,067 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:55:47,067 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:55:47,067 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:55:47,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:47" (1/1) ... [2024-11-28 02:55:47,085 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:47" (1/1) ... [2024-11-28 02:55:47,112 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2024-11-28 02:55:47,112 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:55:47,113 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:55:47,113 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:55:47,113 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:55:47,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:47" (1/1) ... [2024-11-28 02:55:47,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:47" (1/1) ... [2024-11-28 02:55:47,125 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:47" (1/1) ... [2024-11-28 02:55:47,139 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]. [2024-11-28 02:55:47,139 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:47" (1/1) ... [2024-11-28 02:55:47,139 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:47" (1/1) ... [2024-11-28 02:55:47,143 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:47" (1/1) ... [2024-11-28 02:55:47,144 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:47" (1/1) ... [2024-11-28 02:55:47,148 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:47" (1/1) ... [2024-11-28 02:55:47,149 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:47" (1/1) ... [2024-11-28 02:55:47,150 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:47" (1/1) ... [2024-11-28 02:55:47,152 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:55:47,156 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:55:47,156 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:55:47,156 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:55:47,157 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:47" (1/1) ... [2024-11-28 02:55:47,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:55:47,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:47,202 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:55:47,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:55:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:55:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:55:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:55:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:55:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:55:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:55:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:55:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:55:47,311 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:55:47,314 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:55:47,825 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-11-28 02:55:47,826 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:55:47,842 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:55:47,842 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:55:47,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:55:47 BoogieIcfgContainer [2024-11-28 02:55:47,843 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:55:47,846 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:55:47,846 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:55:47,852 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:55:47,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:55:46" (1/3) ... [2024-11-28 02:55:47,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44af2c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:55:47, skipping insertion in model container [2024-11-28 02:55:47,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:47" (2/3) ... [2024-11-28 02:55:47,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44af2c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:55:47, skipping insertion in model container [2024-11-28 02:55:47,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:55:47" (3/3) ... [2024-11-28 02:55:47,855 INFO L128 eAbstractionObserver]: Analyzing ICFG fermat2-ll_valuebound100.c [2024-11-28 02:55:47,875 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:55:47,877 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG fermat2-ll_valuebound100.c that has 3 procedures, 137 locations, 1 initial locations, 1 loop locations, and 56 error locations. [2024-11-28 02:55:47,946 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:55:47,966 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;@1ae2f5d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:55:47,967 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-11-28 02:55:47,974 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 72 states have (on average 1.8611111111111112) internal successors, (134), 128 states have internal predecessors, (134), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 02:55:47,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 02:55:47,985 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:47,986 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:47,988 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:55:47,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:47,996 INFO L85 PathProgramCache]: Analyzing trace with hash -969785577, now seen corresponding path program 1 times [2024-11-28 02:55:48,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:48,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883562323] [2024-11-28 02:55:48,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:48,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:48,174 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:55:48,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:48,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883562323] [2024-11-28 02:55:48,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883562323] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:48,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640019524] [2024-11-28 02:55:48,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:48,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:48,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:48,187 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:48,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:55:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:48,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:55:48,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:48,295 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:55:48,295 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:55:48,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640019524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:48,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:55:48,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:55:48,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382946898] [2024-11-28 02:55:48,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:48,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:55:48,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:48,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:55:48,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:55:48,337 INFO L87 Difference]: Start difference. First operand has 137 states, 72 states have (on average 1.8611111111111112) internal successors, (134), 128 states have internal predecessors, (134), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:55:48,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:48,385 INFO L93 Difference]: Finished difference Result 264 states and 293 transitions. [2024-11-28 02:55:48,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:55:48,390 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-11-28 02:55:48,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:48,402 INFO L225 Difference]: With dead ends: 264 [2024-11-28 02:55:48,407 INFO L226 Difference]: Without dead ends: 124 [2024-11-28 02:55:48,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:55:48,419 INFO L435 NwaCegarLoop]: 135 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, 135 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 [2024-11-28 02:55:48,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:55:48,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-28 02:55:48,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-11-28 02:55:48,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 67 states have (on average 1.7611940298507462) internal successors, (118), 116 states have internal predecessors, (118), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 02:55:48,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 128 transitions. [2024-11-28 02:55:48,496 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 128 transitions. Word has length 14 [2024-11-28 02:55:48,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:48,498 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 128 transitions. [2024-11-28 02:55:48,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:55:48,498 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 128 transitions. [2024-11-28 02:55:48,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 02:55:48,500 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:48,500 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:48,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:55:48,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 02:55:48,705 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:55:48,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:48,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1362753005, now seen corresponding path program 1 times [2024-11-28 02:55:48,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:48,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306706958] [2024-11-28 02:55:48,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:48,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:48,819 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:55:48,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:48,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306706958] [2024-11-28 02:55:48,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306706958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:48,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:48,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:55:48,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987293177] [2024-11-28 02:55:48,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:48,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:55:48,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:48,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:55:48,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:55:48,823 INFO L87 Difference]: Start difference. First operand 124 states and 128 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:55:48,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:48,939 INFO L93 Difference]: Finished difference Result 124 states and 128 transitions. [2024-11-28 02:55:48,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:55:48,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 14 [2024-11-28 02:55:48,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:48,941 INFO L225 Difference]: With dead ends: 124 [2024-11-28 02:55:48,942 INFO L226 Difference]: Without dead ends: 120 [2024-11-28 02:55:48,942 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 [2024-11-28 02:55:48,943 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 13 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:48,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 199 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:55:48,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-28 02:55:48,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-28 02:55:48,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 67 states have (on average 1.7014925373134329) internal successors, (114), 112 states have internal predecessors, (114), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 02:55:48,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 124 transitions. [2024-11-28 02:55:48,966 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 124 transitions. Word has length 14 [2024-11-28 02:55:48,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:48,968 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 124 transitions. [2024-11-28 02:55:48,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:55:48,969 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 124 transitions. [2024-11-28 02:55:48,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 02:55:48,969 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:48,970 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:48,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:55:48,970 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:55:48,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:48,971 INFO L85 PathProgramCache]: Analyzing trace with hash 704329844, now seen corresponding path program 1 times [2024-11-28 02:55:48,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:48,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519093417] [2024-11-28 02:55:48,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:48,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:49,074 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:55:49,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:49,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519093417] [2024-11-28 02:55:49,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519093417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:49,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:49,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:55:49,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765411787] [2024-11-28 02:55:49,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:49,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:55:49,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:49,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:55:49,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:55:49,078 INFO L87 Difference]: Start difference. First operand 120 states and 124 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:55:49,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:49,184 INFO L93 Difference]: Finished difference Result 120 states and 124 transitions. [2024-11-28 02:55:49,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:55:49,185 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), 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 15 [2024-11-28 02:55:49,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:49,186 INFO L225 Difference]: With dead ends: 120 [2024-11-28 02:55:49,186 INFO L226 Difference]: Without dead ends: 116 [2024-11-28 02:55:49,190 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 [2024-11-28 02:55:49,191 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 12 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:49,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 199 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:55:49,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-28 02:55:49,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-28 02:55:49,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 67 states have (on average 1.6417910447761195) internal successors, (110), 108 states have internal predecessors, (110), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 02:55:49,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 120 transitions. [2024-11-28 02:55:49,214 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 120 transitions. Word has length 15 [2024-11-28 02:55:49,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:49,218 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 120 transitions. [2024-11-28 02:55:49,218 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), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:55:49,218 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 120 transitions. [2024-11-28 02:55:49,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 02:55:49,219 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:49,219 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:49,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:55:49,220 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:55:49,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:49,220 INFO L85 PathProgramCache]: Analyzing trace with hash -803919688, now seen corresponding path program 1 times [2024-11-28 02:55:49,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:49,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169037897] [2024-11-28 02:55:49,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:49,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:55:49,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [814810605] [2024-11-28 02:55:49,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:49,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:49,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:49,266 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:49,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:55:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:49,356 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:55:49,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:49,489 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 02:55:49,489 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:55:49,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:49,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169037897] [2024-11-28 02:55:49,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:49,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814810605] [2024-11-28 02:55:49,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814810605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:49,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:49,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:55:49,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730852369] [2024-11-28 02:55:49,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:49,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:55:49,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:49,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:55:49,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:55:49,496 INFO L87 Difference]: Start difference. First operand 116 states and 120 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:55:49,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:49,643 INFO L93 Difference]: Finished difference Result 116 states and 120 transitions. [2024-11-28 02:55:49,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:55:49,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-11-28 02:55:49,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:49,645 INFO L225 Difference]: With dead ends: 116 [2024-11-28 02:55:49,645 INFO L226 Difference]: Without dead ends: 114 [2024-11-28 02:55:49,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:55:49,649 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 8 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:49,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 375 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:55:49,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-28 02:55:49,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-28 02:55:49,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 67 states have (on average 1.6119402985074627) internal successors, (108), 106 states have internal predecessors, (108), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 02:55:49,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 118 transitions. [2024-11-28 02:55:49,659 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 118 transitions. Word has length 19 [2024-11-28 02:55:49,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:49,659 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 118 transitions. [2024-11-28 02:55:49,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:55:49,659 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 118 transitions. [2024-11-28 02:55:49,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 02:55:49,660 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:49,660 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:49,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:55:49,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:49,865 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:55:49,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:49,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1786722301, now seen corresponding path program 1 times [2024-11-28 02:55:49,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:49,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334449437] [2024-11-28 02:55:49,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:49,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:55:49,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [694364316] [2024-11-28 02:55:49,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:49,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:49,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:49,930 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:49,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:55:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:49,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:55:49,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:50,189 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:55:50,190 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:50,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:50,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334449437] [2024-11-28 02:55:50,295 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:50,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694364316] [2024-11-28 02:55:50,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694364316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:50,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:55:50,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-28 02:55:50,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500269471] [2024-11-28 02:55:50,296 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:50,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:55:50,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:50,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:55:50,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:55:50,298 INFO L87 Difference]: Start difference. First operand 114 states and 118 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:55:50,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:50,414 INFO L93 Difference]: Finished difference Result 114 states and 118 transitions. [2024-11-28 02:55:50,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:55:50,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2024-11-28 02:55:50,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:50,416 INFO L225 Difference]: With dead ends: 114 [2024-11-28 02:55:50,416 INFO L226 Difference]: Without dead ends: 111 [2024-11-28 02:55:50,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:55:50,417 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 79 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:50,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 291 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:55:50,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-28 02:55:50,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-28 02:55:50,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 67 states have (on average 1.5671641791044777) internal successors, (105), 103 states have internal predecessors, (105), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 02:55:50,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 115 transitions. [2024-11-28 02:55:50,428 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 115 transitions. Word has length 36 [2024-11-28 02:55:50,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:50,429 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 115 transitions. [2024-11-28 02:55:50,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:55:50,429 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 115 transitions. [2024-11-28 02:55:50,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-28 02:55:50,430 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:50,430 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-28 02:55:50,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:55:50,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:50,634 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:55:50,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:50,635 INFO L85 PathProgramCache]: Analyzing trace with hash -446183452, now seen corresponding path program 1 times [2024-11-28 02:55:50,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:50,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642452682] [2024-11-28 02:55:50,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:50,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:50,966 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:55:50,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:50,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642452682] [2024-11-28 02:55:50,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642452682] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:50,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893763864] [2024-11-28 02:55:50,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:50,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:50,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:50,973 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:50,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:55:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:51,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 02:55:51,070 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:51,247 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:55:51,247 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:55:51,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893763864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:51,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:55:51,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-28 02:55:51,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493292146] [2024-11-28 02:55:51,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:51,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:55:51,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:51,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:55:51,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:55:51,249 INFO L87 Difference]: Start difference. First operand 111 states and 115 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:55:51,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:51,418 INFO L93 Difference]: Finished difference Result 111 states and 115 transitions. [2024-11-28 02:55:51,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:55:51,419 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 37 [2024-11-28 02:55:51,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:51,420 INFO L225 Difference]: With dead ends: 111 [2024-11-28 02:55:51,420 INFO L226 Difference]: Without dead ends: 110 [2024-11-28 02:55:51,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:55:51,421 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 78 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:51,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 380 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:55:51,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-28 02:55:51,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-11-28 02:55:51,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 67 states have (on average 1.5522388059701493) internal successors, (104), 102 states have internal predecessors, (104), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 02:55:51,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 114 transitions. [2024-11-28 02:55:51,440 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 114 transitions. Word has length 37 [2024-11-28 02:55:51,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:51,440 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 114 transitions. [2024-11-28 02:55:51,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:55:51,441 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 114 transitions. [2024-11-28 02:55:51,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 02:55:51,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:51,442 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-28 02:55:51,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:55:51,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:51,643 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:55:51,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:51,643 INFO L85 PathProgramCache]: Analyzing trace with hash -946785049, now seen corresponding path program 1 times [2024-11-28 02:55:51,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:51,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726458101] [2024-11-28 02:55:51,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:51,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:51,772 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:55:51,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:51,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726458101] [2024-11-28 02:55:51,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726458101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:51,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:51,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:55:51,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171567904] [2024-11-28 02:55:51,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:51,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:55:51,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:51,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:55:51,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:55:51,776 INFO L87 Difference]: Start difference. First operand 110 states and 114 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:55:51,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:51,848 INFO L93 Difference]: Finished difference Result 112 states and 116 transitions. [2024-11-28 02:55:51,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:55:51,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2024-11-28 02:55:51,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:51,852 INFO L225 Difference]: With dead ends: 112 [2024-11-28 02:55:51,852 INFO L226 Difference]: Without dead ends: 111 [2024-11-28 02:55:51,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:55:51,853 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 35 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:51,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 157 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:55:51,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-28 02:55:51,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-28 02:55:51,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 68 states have (on average 1.5441176470588236) internal successors, (105), 103 states have internal predecessors, (105), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 02:55:51,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 115 transitions. [2024-11-28 02:55:51,878 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 115 transitions. Word has length 38 [2024-11-28 02:55:51,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:51,879 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 115 transitions. [2024-11-28 02:55:51,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:55:51,879 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 115 transitions. [2024-11-28 02:55:51,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-28 02:55:51,880 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:51,880 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:51,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:55:51,884 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:55:51,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:51,885 INFO L85 PathProgramCache]: Analyzing trace with hash 714434630, now seen corresponding path program 1 times [2024-11-28 02:55:51,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:51,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742148802] [2024-11-28 02:55:51,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:51,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:51,998 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:55:51,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:52,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742148802] [2024-11-28 02:55:52,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742148802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:52,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:52,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:55:52,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275891018] [2024-11-28 02:55:52,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:52,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:55:52,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:52,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:55:52,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:55:52,006 INFO L87 Difference]: Start difference. First operand 111 states and 115 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:55:52,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:52,142 INFO L93 Difference]: Finished difference Result 113 states and 117 transitions. [2024-11-28 02:55:52,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:55:52,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 39 [2024-11-28 02:55:52,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:52,145 INFO L225 Difference]: With dead ends: 113 [2024-11-28 02:55:52,146 INFO L226 Difference]: Without dead ends: 112 [2024-11-28 02:55:52,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:55:52,147 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 45 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:52,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 209 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:55:52,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-28 02:55:52,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-28 02:55:52,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 69 states have (on average 1.536231884057971) internal successors, (106), 104 states have internal predecessors, (106), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 02:55:52,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 116 transitions. [2024-11-28 02:55:52,164 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 116 transitions. Word has length 39 [2024-11-28 02:55:52,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:52,167 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 116 transitions. [2024-11-28 02:55:52,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:55:52,168 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 116 transitions. [2024-11-28 02:55:52,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 02:55:52,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:52,169 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:52,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:55:52,169 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:55:52,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:52,170 INFO L85 PathProgramCache]: Analyzing trace with hash 672637129, now seen corresponding path program 1 times [2024-11-28 02:55:52,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:52,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144357493] [2024-11-28 02:55:52,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:52,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:55:52,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2025912397] [2024-11-28 02:55:52,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:52,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:52,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:52,212 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:52,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:55:52,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:52,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:55:52,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:52,298 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:55:52,298 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:55:52,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:52,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144357493] [2024-11-28 02:55:52,299 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:52,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025912397] [2024-11-28 02:55:52,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025912397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:52,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:52,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:55:52,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331078203] [2024-11-28 02:55:52,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:52,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:55:52,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:52,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:55:52,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:55:52,301 INFO L87 Difference]: Start difference. First operand 112 states and 116 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:55:52,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:52,395 INFO L93 Difference]: Finished difference Result 148 states and 160 transitions. [2024-11-28 02:55:52,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:55:52,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 40 [2024-11-28 02:55:52,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:52,397 INFO L225 Difference]: With dead ends: 148 [2024-11-28 02:55:52,397 INFO L226 Difference]: Without dead ends: 147 [2024-11-28 02:55:52,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:55:52,400 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 33 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:52,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 186 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:55:52,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-28 02:55:52,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 113. [2024-11-28 02:55:52,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 70 states have (on average 1.5285714285714285) internal successors, (107), 105 states have internal predecessors, (107), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 02:55:52,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 117 transitions. [2024-11-28 02:55:52,413 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 117 transitions. Word has length 40 [2024-11-28 02:55:52,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:52,415 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 117 transitions. [2024-11-28 02:55:52,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:55:52,415 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 117 transitions. [2024-11-28 02:55:52,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 02:55:52,416 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:52,416 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:52,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 02:55:52,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:52,617 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:55:52,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:52,618 INFO L85 PathProgramCache]: Analyzing trace with hash -623085400, now seen corresponding path program 1 times [2024-11-28 02:55:52,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:52,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924279901] [2024-11-28 02:55:52,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:52,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:52,982 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 02:55:52,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:52,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924279901] [2024-11-28 02:55:52,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924279901] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:52,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800916564] [2024-11-28 02:55:52,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:52,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:52,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:52,986 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:52,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:55:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:53,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:55:53,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:53,429 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:55:53,429 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:53,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800916564] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:53,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:55:53,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-28 02:55:53,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102928537] [2024-11-28 02:55:53,884 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:53,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:55:53,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:53,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:55:53,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-11-28 02:55:53,887 INFO L87 Difference]: Start difference. First operand 113 states and 117 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-28 02:55:55,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:55,969 INFO L93 Difference]: Finished difference Result 148 states and 159 transitions. [2024-11-28 02:55:55,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 02:55:55,970 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 41 [2024-11-28 02:55:55,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:55,972 INFO L225 Difference]: With dead ends: 148 [2024-11-28 02:55:55,972 INFO L226 Difference]: Without dead ends: 147 [2024-11-28 02:55:55,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2024-11-28 02:55:55,973 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 173 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:55,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 572 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 305 Invalid, 2 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 02:55:55,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-28 02:55:55,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 114. [2024-11-28 02:55:55,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 106 states have internal predecessors, (108), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 02:55:55,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 118 transitions. [2024-11-28 02:55:55,984 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 118 transitions. Word has length 41 [2024-11-28 02:55:55,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:55,984 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 118 transitions. [2024-11-28 02:55:55,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-28 02:55:55,985 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 118 transitions. [2024-11-28 02:55:55,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 02:55:55,986 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:55,986 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:55,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 02:55:56,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 02:55:56,191 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:55:56,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:56,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1784612598, now seen corresponding path program 1 times [2024-11-28 02:55:56,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:56,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34952078] [2024-11-28 02:55:56,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:56,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:55:56,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [566085672] [2024-11-28 02:55:56,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:56,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:56,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:56,225 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:56,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:55:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:56,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:55:56,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:56,593 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:55:56,594 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:56,831 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:55:56,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:56,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34952078] [2024-11-28 02:55:56,832 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:56,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566085672] [2024-11-28 02:55:56,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566085672] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:55:56,832 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:55:56,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 02:55:56,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589481455] [2024-11-28 02:55:56,833 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:56,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:55:56,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:56,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:55:56,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:55:56,837 INFO L87 Difference]: Start difference. First operand 114 states and 118 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 02:55:58,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:58,547 INFO L93 Difference]: Finished difference Result 188 states and 212 transitions. [2024-11-28 02:55:58,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:55:58,547 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 43 [2024-11-28 02:55:58,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:58,550 INFO L225 Difference]: With dead ends: 188 [2024-11-28 02:55:58,552 INFO L226 Difference]: Without dead ends: 173 [2024-11-28 02:55:58,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:55:58,553 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 114 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:58,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 324 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 02:55:58,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-28 02:55:58,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 155. [2024-11-28 02:55:58,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 120 states have (on average 1.4583333333333333) internal successors, (175), 146 states have internal predecessors, (175), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 02:55:58,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 187 transitions. [2024-11-28 02:55:58,575 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 187 transitions. Word has length 43 [2024-11-28 02:55:58,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:58,576 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 187 transitions. [2024-11-28 02:55:58,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 02:55:58,577 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 187 transitions. [2024-11-28 02:55:58,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 02:55:58,578 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:58,578 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:58,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 02:55:58,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 02:55:58,779 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:55:58,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:58,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1320752788, now seen corresponding path program 1 times [2024-11-28 02:55:58,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:58,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030063683] [2024-11-28 02:55:58,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:58,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:55:58,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [39742758] [2024-11-28 02:55:58,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:58,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:58,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:58,808 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:58,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 02:55:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:58,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:55:58,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:58,920 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:55:58,924 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:55:58,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:58,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030063683] [2024-11-28 02:55:58,925 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:58,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39742758] [2024-11-28 02:55:58,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39742758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:58,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:58,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:55:58,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284803265] [2024-11-28 02:55:58,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:58,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:55:58,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:58,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:55:58,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:55:58,927 INFO L87 Difference]: Start difference. First operand 155 states and 187 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:55:59,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:59,124 INFO L93 Difference]: Finished difference Result 267 states and 331 transitions. [2024-11-28 02:55:59,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:55:59,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 45 [2024-11-28 02:55:59,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:59,129 INFO L225 Difference]: With dead ends: 267 [2024-11-28 02:55:59,130 INFO L226 Difference]: Without dead ends: 238 [2024-11-28 02:55:59,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:55:59,133 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 44 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:59,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 132 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:55:59,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-28 02:55:59,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 230. [2024-11-28 02:55:59,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 193 states have (on average 1.4041450777202074) internal successors, (271), 219 states have internal predecessors, (271), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 02:55:59,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 287 transitions. [2024-11-28 02:55:59,162 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 287 transitions. Word has length 45 [2024-11-28 02:55:59,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:59,162 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 287 transitions. [2024-11-28 02:55:59,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:55:59,163 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 287 transitions. [2024-11-28 02:55:59,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 02:55:59,168 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:59,168 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:59,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 02:55:59,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 02:55:59,369 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:55:59,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:59,370 INFO L85 PathProgramCache]: Analyzing trace with hash 679120362, now seen corresponding path program 1 times [2024-11-28 02:55:59,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:59,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970523078] [2024-11-28 02:55:59,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:59,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:59,571 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:55:59,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:59,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970523078] [2024-11-28 02:55:59,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970523078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:59,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:59,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:55:59,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022712239] [2024-11-28 02:55:59,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:59,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:55:59,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:59,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:55:59,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:55:59,575 INFO L87 Difference]: Start difference. First operand 230 states and 287 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:55:59,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:59,801 INFO L93 Difference]: Finished difference Result 230 states and 287 transitions. [2024-11-28 02:55:59,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:55:59,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 63 [2024-11-28 02:55:59,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:59,803 INFO L225 Difference]: With dead ends: 230 [2024-11-28 02:55:59,804 INFO L226 Difference]: Without dead ends: 229 [2024-11-28 02:55:59,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:55:59,805 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 100 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:59,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 175 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:55:59,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-28 02:55:59,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2024-11-28 02:55:59,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 193 states have (on average 1.383419689119171) internal successors, (267), 218 states have internal predecessors, (267), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 02:55:59,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 283 transitions. [2024-11-28 02:55:59,830 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 283 transitions. Word has length 63 [2024-11-28 02:55:59,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:59,831 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 283 transitions. [2024-11-28 02:55:59,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:55:59,832 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 283 transitions. [2024-11-28 02:55:59,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 02:55:59,834 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:59,835 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:59,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:55:59,835 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:55:59,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:59,836 INFO L85 PathProgramCache]: Analyzing trace with hash 679120042, now seen corresponding path program 1 times [2024-11-28 02:55:59,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:59,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634244831] [2024-11-28 02:55:59,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:59,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:59,986 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:55:59,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:59,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634244831] [2024-11-28 02:55:59,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634244831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:59,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:59,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:55:59,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357644134] [2024-11-28 02:55:59,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:59,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:55:59,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:59,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:55:59,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:55:59,989 INFO L87 Difference]: Start difference. First operand 229 states and 283 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:56:00,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:00,211 INFO L93 Difference]: Finished difference Result 237 states and 284 transitions. [2024-11-28 02:56:00,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:56:00,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 63 [2024-11-28 02:56:00,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:00,214 INFO L225 Difference]: With dead ends: 237 [2024-11-28 02:56:00,214 INFO L226 Difference]: Without dead ends: 236 [2024-11-28 02:56:00,215 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 [2024-11-28 02:56:00,218 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 31 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:00,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 162 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:56:00,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-28 02:56:00,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 229. [2024-11-28 02:56:00,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 193 states have (on average 1.3730569948186528) internal successors, (265), 218 states have internal predecessors, (265), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 02:56:00,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 281 transitions. [2024-11-28 02:56:00,248 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 281 transitions. Word has length 63 [2024-11-28 02:56:00,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:00,248 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 281 transitions. [2024-11-28 02:56:00,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:56:00,249 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 281 transitions. [2024-11-28 02:56:00,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 02:56:00,250 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:00,250 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:00,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:56:00,251 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:56:00,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:00,252 INFO L85 PathProgramCache]: Analyzing trace with hash -422105126, now seen corresponding path program 1 times [2024-11-28 02:56:00,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:00,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561938256] [2024-11-28 02:56:00,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:00,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:00,360 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:56:00,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:00,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561938256] [2024-11-28 02:56:00,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561938256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:00,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:00,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:56:00,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142672267] [2024-11-28 02:56:00,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:00,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:56:00,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:00,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:56:00,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:56:00,363 INFO L87 Difference]: Start difference. First operand 229 states and 281 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:56:00,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:00,602 INFO L93 Difference]: Finished difference Result 239 states and 291 transitions. [2024-11-28 02:56:00,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:56:00,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2024-11-28 02:56:00,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:00,606 INFO L225 Difference]: With dead ends: 239 [2024-11-28 02:56:00,606 INFO L226 Difference]: Without dead ends: 238 [2024-11-28 02:56:00,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:56:00,609 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 49 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:00,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 167 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:56:00,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-28 02:56:00,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 228. [2024-11-28 02:56:00,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 193 states have (on average 1.3523316062176165) internal successors, (261), 217 states have internal predecessors, (261), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 02:56:00,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 277 transitions. [2024-11-28 02:56:00,637 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 277 transitions. Word has length 64 [2024-11-28 02:56:00,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:00,637 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 277 transitions. [2024-11-28 02:56:00,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:56:00,638 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 277 transitions. [2024-11-28 02:56:00,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 02:56:00,639 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:00,639 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:00,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 02:56:00,639 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:56:00,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:00,640 INFO L85 PathProgramCache]: Analyzing trace with hash -422115056, now seen corresponding path program 1 times [2024-11-28 02:56:00,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:00,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044836415] [2024-11-28 02:56:00,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:00,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:00,847 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:56:00,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:00,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044836415] [2024-11-28 02:56:00,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044836415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:00,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:00,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:56:00,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135400983] [2024-11-28 02:56:00,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:00,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:56:00,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:00,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:56:00,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:56:00,849 INFO L87 Difference]: Start difference. First operand 228 states and 277 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:56:01,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:01,179 INFO L93 Difference]: Finished difference Result 231 states and 278 transitions. [2024-11-28 02:56:01,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:56:01,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2024-11-28 02:56:01,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:01,182 INFO L225 Difference]: With dead ends: 231 [2024-11-28 02:56:01,182 INFO L226 Difference]: Without dead ends: 230 [2024-11-28 02:56:01,183 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:56:01,184 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 117 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:01,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 166 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:56:01,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-28 02:56:01,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 228. [2024-11-28 02:56:01,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 193 states have (on average 1.3419689119170986) internal successors, (259), 217 states have internal predecessors, (259), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 02:56:01,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 275 transitions. [2024-11-28 02:56:01,218 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 275 transitions. Word has length 64 [2024-11-28 02:56:01,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:01,219 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 275 transitions. [2024-11-28 02:56:01,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:56:01,219 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 275 transitions. [2024-11-28 02:56:01,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 02:56:01,220 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:01,220 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:01,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 02:56:01,220 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:56:01,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:01,224 INFO L85 PathProgramCache]: Analyzing trace with hash 730567087, now seen corresponding path program 1 times [2024-11-28 02:56:01,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:01,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021704849] [2024-11-28 02:56:01,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:01,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:01,380 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:56:01,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:01,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021704849] [2024-11-28 02:56:01,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021704849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:01,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:01,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:56:01,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76552150] [2024-11-28 02:56:01,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:01,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:56:01,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:01,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:56:01,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:56:01,383 INFO L87 Difference]: Start difference. First operand 228 states and 275 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:56:01,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:01,598 INFO L93 Difference]: Finished difference Result 232 states and 281 transitions. [2024-11-28 02:56:01,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:56:01,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 67 [2024-11-28 02:56:01,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:01,601 INFO L225 Difference]: With dead ends: 232 [2024-11-28 02:56:01,602 INFO L226 Difference]: Without dead ends: 231 [2024-11-28 02:56:01,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:56:01,603 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 59 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:01,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 168 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:56:01,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-28 02:56:01,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 229. [2024-11-28 02:56:01,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 194 states have (on average 1.324742268041237) internal successors, (257), 218 states have internal predecessors, (257), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 02:56:01,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 273 transitions. [2024-11-28 02:56:01,632 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 273 transitions. Word has length 67 [2024-11-28 02:56:01,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:01,633 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 273 transitions. [2024-11-28 02:56:01,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:56:01,633 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 273 transitions. [2024-11-28 02:56:01,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 02:56:01,635 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:01,635 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:01,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 02:56:01,635 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:56:01,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:01,636 INFO L85 PathProgramCache]: Analyzing trace with hash 434732537, now seen corresponding path program 1 times [2024-11-28 02:56:01,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:01,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198264388] [2024-11-28 02:56:01,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:01,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:01,838 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:56:01,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:01,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198264388] [2024-11-28 02:56:01,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198264388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:56:01,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92570093] [2024-11-28 02:56:01,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:01,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:01,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:01,842 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:56:01,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 02:56:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:01,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:56:01,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:56:02,215 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:56:02,215 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:56:02,428 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:56:02,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92570093] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:56:02,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:56:02,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2024-11-28 02:56:02,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452442922] [2024-11-28 02:56:02,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:56:02,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:56:02,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:02,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:56:02,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:56:02,432 INFO L87 Difference]: Start difference. First operand 229 states and 273 transitions. Second operand has 14 states, 13 states have (on average 9.153846153846153) internal successors, (119), 14 states have internal predecessors, (119), 5 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 02:56:03,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:03,362 INFO L93 Difference]: Finished difference Result 293 states and 359 transitions. [2024-11-28 02:56:03,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 02:56:03,363 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.153846153846153) internal successors, (119), 14 states have internal predecessors, (119), 5 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 67 [2024-11-28 02:56:03,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:03,365 INFO L225 Difference]: With dead ends: 293 [2024-11-28 02:56:03,366 INFO L226 Difference]: Without dead ends: 291 [2024-11-28 02:56:03,367 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=171, Invalid=335, Unknown=0, NotChecked=0, Total=506 [2024-11-28 02:56:03,367 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 371 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:03,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 254 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:56:03,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-28 02:56:03,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 233. [2024-11-28 02:56:03,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 199 states have (on average 1.3165829145728642) internal successors, (262), 222 states have internal predecessors, (262), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 02:56:03,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 278 transitions. [2024-11-28 02:56:03,395 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 278 transitions. Word has length 67 [2024-11-28 02:56:03,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:03,395 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 278 transitions. [2024-11-28 02:56:03,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.153846153846153) internal successors, (119), 14 states have internal predecessors, (119), 5 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 02:56:03,397 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 278 transitions. [2024-11-28 02:56:03,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 02:56:03,397 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:03,397 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-28 02:56:03,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 02:56:03,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 02:56:03,598 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:56:03,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:03,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1172743294, now seen corresponding path program 1 times [2024-11-28 02:56:03,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:03,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199394308] [2024-11-28 02:56:03,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:03,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:03,739 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:56:03,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:03,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199394308] [2024-11-28 02:56:03,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199394308] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:56:03,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368162889] [2024-11-28 02:56:03,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:03,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:03,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:03,743 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:56:03,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 02:56:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:03,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:56:03,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:56:04,077 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:56:04,077 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:56:04,303 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:56:04,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368162889] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:56:04,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:56:04,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-28 02:56:04,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056550919] [2024-11-28 02:56:04,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:56:04,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 02:56:04,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:04,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 02:56:04,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:56:04,306 INFO L87 Difference]: Start difference. First operand 233 states and 278 transitions. Second operand has 15 states, 14 states have (on average 9.428571428571429) internal successors, (132), 15 states have internal predecessors, (132), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-28 02:56:05,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:05,023 INFO L93 Difference]: Finished difference Result 266 states and 317 transitions. [2024-11-28 02:56:05,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:56:05,024 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.428571428571429) internal successors, (132), 15 states have internal predecessors, (132), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 68 [2024-11-28 02:56:05,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:05,026 INFO L225 Difference]: With dead ends: 266 [2024-11-28 02:56:05,026 INFO L226 Difference]: Without dead ends: 264 [2024-11-28 02:56:05,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2024-11-28 02:56:05,027 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 241 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:05,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 227 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:56:05,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-28 02:56:05,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 237. [2024-11-28 02:56:05,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 203 states have (on average 1.2857142857142858) internal successors, (261), 226 states have internal predecessors, (261), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 02:56:05,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 277 transitions. [2024-11-28 02:56:05,050 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 277 transitions. Word has length 68 [2024-11-28 02:56:05,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:05,050 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 277 transitions. [2024-11-28 02:56:05,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.428571428571429) internal successors, (132), 15 states have internal predecessors, (132), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-28 02:56:05,051 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 277 transitions. [2024-11-28 02:56:05,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 02:56:05,051 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:05,052 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-28 02:56:05,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 02:56:05,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:05,253 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:56:05,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:05,253 INFO L85 PathProgramCache]: Analyzing trace with hash 591806836, now seen corresponding path program 1 times [2024-11-28 02:56:05,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:05,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190115623] [2024-11-28 02:56:05,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:05,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:05,386 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:56:05,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:05,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190115623] [2024-11-28 02:56:05,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190115623] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:56:05,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039690492] [2024-11-28 02:56:05,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:05,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:05,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:05,389 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:56:05,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 02:56:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:05,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:56:05,458 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:56:18,567 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~R~0#1_48| Int)) (let ((.cse0 (* |v_ULTIMATE.start_main_~R~0#1_48| |v_ULTIMATE.start_main_~R~0#1_48|))) (and (<= .cse0 9223372036854775807) (<= (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1| 1) .cse0)))) is different from true [2024-11-28 02:56:18,603 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 2 not checked. [2024-11-28 02:56:18,603 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:56:18,817 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:56:18,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039690492] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:56:18,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:56:18,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-28 02:56:18,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626844920] [2024-11-28 02:56:18,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:56:18,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:56:18,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:18,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:56:18,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=106, Unknown=6, NotChecked=22, Total=182 [2024-11-28 02:56:18,820 INFO L87 Difference]: Start difference. First operand 237 states and 277 transitions. Second operand has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 02:56:25,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:56:39,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:56:42,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:56:46,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:56:48,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:56:52,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:56:54,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:56:56,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:00,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:03,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:05,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:09,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:13,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:16,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:18,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:22,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:26,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:30,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:32,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:34,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:36,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:40,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:43,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:46,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:48,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:54,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:56,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:00,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:02,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:06,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:08,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:12,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:16,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:20,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:24,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:27,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:31,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:35,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:39,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:41,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:44,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:48,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:52,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:55,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:59,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:03,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:05,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:07,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:11,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:13,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:17,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:17,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:17,200 INFO L93 Difference]: Finished difference Result 276 states and 323 transitions. [2024-11-28 02:59:17,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 02:59:17,200 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 68 [2024-11-28 02:59:17,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:17,202 INFO L225 Difference]: With dead ends: 276 [2024-11-28 02:59:17,202 INFO L226 Difference]: Without dead ends: 271 [2024-11-28 02:59:17,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 30.3s TimeCoverageRelationStatistics Valid=132, Invalid=282, Unknown=10, NotChecked=38, Total=462 [2024-11-28 02:59:17,203 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 250 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 34 mSolverCounterUnsat, 51 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 160.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 51 IncrementalHoareTripleChecker+Unknown, 218 IncrementalHoareTripleChecker+Unchecked, 160.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:17,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 260 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 415 Invalid, 51 Unknown, 218 Unchecked, 160.8s Time] [2024-11-28 02:59:17,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-28 02:59:17,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 258. [2024-11-28 02:59:17,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 227 states have (on average 1.2643171806167401) internal successors, (287), 246 states have internal predecessors, (287), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 02:59:17,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 305 transitions. [2024-11-28 02:59:17,241 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 305 transitions. Word has length 68 [2024-11-28 02:59:17,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:17,242 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 305 transitions. [2024-11-28 02:59:17,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 02:59:17,243 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 305 transitions. [2024-11-28 02:59:17,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 02:59:17,244 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:17,244 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-28 02:59:17,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 02:59:17,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:17,449 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:59:17,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:17,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1995303825, now seen corresponding path program 1 times [2024-11-28 02:59:17,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:17,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999297052] [2024-11-28 02:59:17,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:17,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:17,658 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:59:17,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:17,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999297052] [2024-11-28 02:59:17,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999297052] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:59:17,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678014413] [2024-11-28 02:59:17,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:17,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:17,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:59:17,662 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:59:17,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 02:59:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:17,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:59:17,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:59:17,965 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:59:17,965 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:59:18,198 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:59:18,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678014413] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:59:18,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:59:18,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-28 02:59:18,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196133938] [2024-11-28 02:59:18,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:59:18,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:59:18,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:18,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:59:18,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:59:18,201 INFO L87 Difference]: Start difference. First operand 258 states and 305 transitions. Second operand has 14 states, 13 states have (on average 9.0) internal successors, (117), 14 states have internal predecessors, (117), 6 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-28 02:59:18,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:18,851 INFO L93 Difference]: Finished difference Result 287 states and 338 transitions. [2024-11-28 02:59:18,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 02:59:18,851 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.0) internal successors, (117), 14 states have internal predecessors, (117), 6 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 69 [2024-11-28 02:59:18,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:18,853 INFO L225 Difference]: With dead ends: 287 [2024-11-28 02:59:18,853 INFO L226 Difference]: Without dead ends: 286 [2024-11-28 02:59:18,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:59:18,856 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 141 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:18,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 204 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:59:18,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-28 02:59:18,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 258. [2024-11-28 02:59:18,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 227 states have (on average 1.2466960352422907) internal successors, (283), 246 states have internal predecessors, (283), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 02:59:18,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 301 transitions. [2024-11-28 02:59:18,917 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 301 transitions. Word has length 69 [2024-11-28 02:59:18,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:18,918 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 301 transitions. [2024-11-28 02:59:18,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.0) internal successors, (117), 14 states have internal predecessors, (117), 6 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-28 02:59:18,918 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 301 transitions. [2024-11-28 02:59:18,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 02:59:18,919 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:18,920 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:18,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 02:59:19,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:19,121 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:59:19,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:19,121 INFO L85 PathProgramCache]: Analyzing trace with hash 261072922, now seen corresponding path program 1 times [2024-11-28 02:59:19,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:19,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128789030] [2024-11-28 02:59:19,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:19,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:59:19,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1074288908] [2024-11-28 02:59:19,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:19,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:19,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:59:19,149 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:59:19,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 02:59:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:19,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:59:19,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:59:19,302 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:59:19,303 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:59:19,464 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:59:19,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:19,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128789030] [2024-11-28 02:59:19,465 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:59:19,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074288908] [2024-11-28 02:59:19,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074288908] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:59:19,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:59:19,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-28 02:59:19,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669614459] [2024-11-28 02:59:19,465 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:59:19,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:59:19,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:19,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:59:19,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:59:19,467 INFO L87 Difference]: Start difference. First operand 258 states and 301 transitions. Second operand has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 02:59:19,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:19,845 INFO L93 Difference]: Finished difference Result 531 states and 671 transitions. [2024-11-28 02:59:19,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:59:19,846 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 74 [2024-11-28 02:59:19,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:19,849 INFO L225 Difference]: With dead ends: 531 [2024-11-28 02:59:19,849 INFO L226 Difference]: Without dead ends: 505 [2024-11-28 02:59:19,849 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:59:19,851 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 208 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:19,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 252 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:59:19,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-11-28 02:59:19,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 450. [2024-11-28 02:59:19,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 421 states have (on average 1.190023752969121) internal successors, (501), 432 states have internal predecessors, (501), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:59:19,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 531 transitions. [2024-11-28 02:59:19,904 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 531 transitions. Word has length 74 [2024-11-28 02:59:19,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:19,906 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 531 transitions. [2024-11-28 02:59:19,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 02:59:19,906 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 531 transitions. [2024-11-28 02:59:19,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 02:59:19,907 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:19,907 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:19,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 02:59:20,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:20,108 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:59:20,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:20,109 INFO L85 PathProgramCache]: Analyzing trace with hash 778699466, now seen corresponding path program 1 times [2024-11-28 02:59:20,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:20,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197410638] [2024-11-28 02:59:20,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:20,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:20,328 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:59:20,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:20,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197410638] [2024-11-28 02:59:20,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197410638] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:59:20,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847900981] [2024-11-28 02:59:20,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:20,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:20,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:59:20,333 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:59:20,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 02:59:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:20,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:59:20,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:59:20,613 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:59:20,614 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:59:33,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847900981] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:59:33,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:59:33,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2024-11-28 02:59:33,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640372560] [2024-11-28 02:59:33,555 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:59:33,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:59:33,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:33,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:59:33,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=117, Unknown=3, NotChecked=0, Total=156 [2024-11-28 02:59:33,557 INFO L87 Difference]: Start difference. First operand 450 states and 531 transitions. Second operand has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 10 states have internal predecessors, (79), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 02:59:35,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 02:59:35,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:35,919 INFO L93 Difference]: Finished difference Result 454 states and 531 transitions. [2024-11-28 02:59:35,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:59:35,920 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 10 states have internal predecessors, (79), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 80 [2024-11-28 02:59:35,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:35,922 INFO L225 Difference]: With dead ends: 454 [2024-11-28 02:59:35,922 INFO L226 Difference]: Without dead ends: 434 [2024-11-28 02:59:35,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=54, Invalid=153, Unknown=3, NotChecked=0, Total=210 [2024-11-28 02:59:35,923 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 110 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:35,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 252 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 02:59:35,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-11-28 02:59:35,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 415. [2024-11-28 02:59:35,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 390 states have (on average 1.1538461538461537) internal successors, (450), 397 states have internal predecessors, (450), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:59:35,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 480 transitions. [2024-11-28 02:59:35,959 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 480 transitions. Word has length 80 [2024-11-28 02:59:35,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:35,959 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 480 transitions. [2024-11-28 02:59:35,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 10 states have internal predecessors, (79), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 02:59:35,960 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 480 transitions. [2024-11-28 02:59:35,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 02:59:35,960 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:35,961 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:35,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 02:59:36,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:36,165 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:59:36,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:36,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1021428776, now seen corresponding path program 1 times [2024-11-28 02:59:36,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:36,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480600481] [2024-11-28 02:59:36,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:36,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:36,229 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 02:59:36,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:36,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480600481] [2024-11-28 02:59:36,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480600481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:36,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:59:36,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:59:36,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572517616] [2024-11-28 02:59:36,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:36,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:59:36,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:36,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:59:36,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:59:36,231 INFO L87 Difference]: Start difference. First operand 415 states and 480 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 02:59:36,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:36,379 INFO L93 Difference]: Finished difference Result 423 states and 488 transitions. [2024-11-28 02:59:36,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:59:36,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 92 [2024-11-28 02:59:36,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:36,382 INFO L225 Difference]: With dead ends: 423 [2024-11-28 02:59:36,382 INFO L226 Difference]: Without dead ends: 422 [2024-11-28 02:59:36,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:59:36,384 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 45 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:36,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 135 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:59:36,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-28 02:59:36,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 414. [2024-11-28 02:59:36,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 390 states have (on average 1.1307692307692307) internal successors, (441), 396 states have internal predecessors, (441), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:59:36,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 471 transitions. [2024-11-28 02:59:36,431 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 471 transitions. Word has length 92 [2024-11-28 02:59:36,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:36,432 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 471 transitions. [2024-11-28 02:59:36,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 02:59:36,432 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 471 transitions. [2024-11-28 02:59:36,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 02:59:36,434 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:36,434 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:36,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 02:59:36,434 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:59:36,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:36,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1599520862, now seen corresponding path program 1 times [2024-11-28 02:59:36,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:36,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073534461] [2024-11-28 02:59:36,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:36,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:36,588 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 02:59:36,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:36,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073534461] [2024-11-28 02:59:36,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073534461] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:59:36,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665830323] [2024-11-28 02:59:36,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:36,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:36,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:59:36,592 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:59:36,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 02:59:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:36,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:59:36,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:59:36,869 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 02:59:36,869 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:59:36,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665830323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:36,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:59:36,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-11-28 02:59:36,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105940086] [2024-11-28 02:59:36,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:36,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:59:36,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:36,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:59:36,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:59:36,871 INFO L87 Difference]: Start difference. First operand 414 states and 471 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 02:59:37,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:37,090 INFO L93 Difference]: Finished difference Result 462 states and 529 transitions. [2024-11-28 02:59:37,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:59:37,090 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 93 [2024-11-28 02:59:37,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:37,092 INFO L225 Difference]: With dead ends: 462 [2024-11-28 02:59:37,093 INFO L226 Difference]: Without dead ends: 461 [2024-11-28 02:59:37,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:59:37,094 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 26 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:37,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 205 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:59:37,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-28 02:59:37,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 413. [2024-11-28 02:59:37,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 390 states have (on average 1.1076923076923078) internal successors, (432), 395 states have internal predecessors, (432), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:59:37,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 462 transitions. [2024-11-28 02:59:37,134 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 462 transitions. Word has length 93 [2024-11-28 02:59:37,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:37,134 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 462 transitions. [2024-11-28 02:59:37,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 02:59:37,134 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 462 transitions. [2024-11-28 02:59:37,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 02:59:37,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:37,135 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:37,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-28 02:59:37,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:37,336 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:59:37,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:37,336 INFO L85 PathProgramCache]: Analyzing trace with hash -37420535, now seen corresponding path program 1 times [2024-11-28 02:59:37,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:37,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885382877] [2024-11-28 02:59:37,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:37,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:37,485 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 02:59:37,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:37,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885382877] [2024-11-28 02:59:37,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885382877] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:59:37,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377324778] [2024-11-28 02:59:37,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:37,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:37,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:59:37,488 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:59:37,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 02:59:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:37,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:59:37,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:59:37,865 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 02:59:37,865 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:59:38,130 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 02:59:38,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377324778] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:59:38,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:59:38,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-11-28 02:59:38,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547586177] [2024-11-28 02:59:38,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:59:38,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 02:59:38,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:38,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 02:59:38,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:59:38,134 INFO L87 Difference]: Start difference. First operand 413 states and 462 transitions. Second operand has 16 states, 15 states have (on average 13.133333333333333) internal successors, (197), 16 states have internal predecessors, (197), 8 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-28 02:59:38,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:38,779 INFO L93 Difference]: Finished difference Result 441 states and 491 transitions. [2024-11-28 02:59:38,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 02:59:38,779 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 13.133333333333333) internal successors, (197), 16 states have internal predecessors, (197), 8 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 98 [2024-11-28 02:59:38,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:38,781 INFO L225 Difference]: With dead ends: 441 [2024-11-28 02:59:38,782 INFO L226 Difference]: Without dead ends: 440 [2024-11-28 02:59:38,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=238, Invalid=464, Unknown=0, NotChecked=0, Total=702 [2024-11-28 02:59:38,783 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 449 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:38,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 293 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:59:38,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-11-28 02:59:38,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 412. [2024-11-28 02:59:38,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 390 states have (on average 1.0846153846153845) internal successors, (423), 394 states have internal predecessors, (423), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-28 02:59:38,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 453 transitions. [2024-11-28 02:59:38,822 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 453 transitions. Word has length 98 [2024-11-28 02:59:38,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:38,822 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 453 transitions. [2024-11-28 02:59:38,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 13.133333333333333) internal successors, (197), 16 states have internal predecessors, (197), 8 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-28 02:59:38,823 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 453 transitions. [2024-11-28 02:59:38,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 02:59:38,824 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:38,824 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:38,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 02:59:39,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 02:59:39,025 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:59:39,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:39,026 INFO L85 PathProgramCache]: Analyzing trace with hash 348292106, now seen corresponding path program 1 times [2024-11-28 02:59:39,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:39,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58057698] [2024-11-28 02:59:39,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:39,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:59:39,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [975212887] [2024-11-28 02:59:39,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:39,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:39,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:59:39,053 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:59:39,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 02:59:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:39,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 02:59:39,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:59:39,738 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 43 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 02:59:39,738 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:59:40,132 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 43 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 02:59:40,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:40,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58057698] [2024-11-28 02:59:40,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:59:40,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975212887] [2024-11-28 02:59:40,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975212887] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:59:40,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:59:40,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-28 02:59:40,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654050400] [2024-11-28 02:59:40,133 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:59:40,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 02:59:40,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:40,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 02:59:40,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:59:40,134 INFO L87 Difference]: Start difference. First operand 412 states and 453 transitions. Second operand has 13 states, 12 states have (on average 12.5) internal successors, (150), 13 states have internal predecessors, (150), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-28 02:59:41,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:41,559 INFO L93 Difference]: Finished difference Result 1373 states and 1528 transitions. [2024-11-28 02:59:41,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:59:41,560 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 12.5) internal successors, (150), 13 states have internal predecessors, (150), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 101 [2024-11-28 02:59:41,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:41,565 INFO L225 Difference]: With dead ends: 1373 [2024-11-28 02:59:41,565 INFO L226 Difference]: Without dead ends: 1372 [2024-11-28 02:59:41,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:59:41,567 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 364 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:41,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 667 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 02:59:41,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2024-11-28 02:59:41,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1272. [2024-11-28 02:59:41,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1222 states have (on average 1.0924713584288053) internal successors, (1335), 1226 states have internal predecessors, (1335), 43 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-28 02:59:41,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1421 transitions. [2024-11-28 02:59:41,686 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1421 transitions. Word has length 101 [2024-11-28 02:59:41,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:41,687 INFO L471 AbstractCegarLoop]: Abstraction has 1272 states and 1421 transitions. [2024-11-28 02:59:41,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 12.5) internal successors, (150), 13 states have internal predecessors, (150), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-28 02:59:41,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1421 transitions. [2024-11-28 02:59:41,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 02:59:41,688 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:41,689 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:41,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 02:59:41,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:41,893 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:59:41,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:41,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2133755191, now seen corresponding path program 1 times [2024-11-28 02:59:41,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:41,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608122760] [2024-11-28 02:59:41,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:41,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:42,043 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 13 proven. 46 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 02:59:42,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:42,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608122760] [2024-11-28 02:59:42,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608122760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:59:42,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690669285] [2024-11-28 02:59:42,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:42,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:42,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:59:42,048 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:59:42,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 02:59:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:42,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:59:42,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:59:42,285 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 02:59:42,285 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:59:42,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690669285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:59:42,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:59:42,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-28 02:59:42,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973274147] [2024-11-28 02:59:42,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:59:42,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:59:42,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:42,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:59:42,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:59:42,287 INFO L87 Difference]: Start difference. First operand 1272 states and 1421 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 02:59:42,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:42,561 INFO L93 Difference]: Finished difference Result 1274 states and 1421 transitions. [2024-11-28 02:59:42,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:59:42,562 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 112 [2024-11-28 02:59:42,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:42,565 INFO L225 Difference]: With dead ends: 1274 [2024-11-28 02:59:42,566 INFO L226 Difference]: Without dead ends: 1257 [2024-11-28 02:59:42,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:59:42,566 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 46 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:42,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 218 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:59:42,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2024-11-28 02:59:42,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1255. [2024-11-28 02:59:42,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1207 states have (on average 1.0571665285832643) internal successors, (1276), 1209 states have internal predecessors, (1276), 43 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-28 02:59:42,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1362 transitions. [2024-11-28 02:59:42,679 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1362 transitions. Word has length 112 [2024-11-28 02:59:42,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:42,680 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 1362 transitions. [2024-11-28 02:59:42,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 02:59:42,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1362 transitions. [2024-11-28 02:59:42,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 02:59:42,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:42,682 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:42,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-28 02:59:42,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:42,883 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:59:42,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:42,883 INFO L85 PathProgramCache]: Analyzing trace with hash -978244788, now seen corresponding path program 1 times [2024-11-28 02:59:42,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:42,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657288154] [2024-11-28 02:59:42,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:42,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:43,095 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 54 proven. 21 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 02:59:43,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:43,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657288154] [2024-11-28 02:59:43,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657288154] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:59:43,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749496481] [2024-11-28 02:59:43,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:43,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:43,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:59:43,104 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:59:43,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 02:59:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:43,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:59:43,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:59:43,746 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 21 proven. 58 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 02:59:43,746 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:59:44,023 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 21 proven. 58 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 02:59:44,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749496481] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:59:44,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:59:44,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 21 [2024-11-28 02:59:44,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384070708] [2024-11-28 02:59:44,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:59:44,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 02:59:44,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:44,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 02:59:44,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2024-11-28 02:59:44,026 INFO L87 Difference]: Start difference. First operand 1255 states and 1362 transitions. Second operand has 21 states, 21 states have (on average 13.333333333333334) internal successors, (280), 21 states have internal predecessors, (280), 14 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 14 states have call predecessors, (21), 14 states have call successors, (21) [2024-11-28 02:59:45,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:45,038 INFO L93 Difference]: Finished difference Result 1712 states and 1861 transitions. [2024-11-28 02:59:45,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 02:59:45,039 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 13.333333333333334) internal successors, (280), 21 states have internal predecessors, (280), 14 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 14 states have call predecessors, (21), 14 states have call successors, (21) Word has length 128 [2024-11-28 02:59:45,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:45,042 INFO L225 Difference]: With dead ends: 1712 [2024-11-28 02:59:45,043 INFO L226 Difference]: Without dead ends: 1176 [2024-11-28 02:59:45,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=338, Invalid=1144, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 02:59:45,048 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 157 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:45,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 176 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:59:45,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2024-11-28 02:59:45,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 769. [2024-11-28 02:59:45,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 737 states have (on average 1.0366350067842605) internal successors, (764), 738 states have internal predecessors, (764), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-28 02:59:45,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 820 transitions. [2024-11-28 02:59:45,126 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 820 transitions. Word has length 128 [2024-11-28 02:59:45,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:45,126 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 820 transitions. [2024-11-28 02:59:45,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 13.333333333333334) internal successors, (280), 21 states have internal predecessors, (280), 14 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 14 states have call predecessors, (21), 14 states have call successors, (21) [2024-11-28 02:59:45,126 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 820 transitions. [2024-11-28 02:59:45,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-28 02:59:45,130 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:45,131 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-28 02:59:45,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-28 02:59:45,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 02:59:45,336 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:59:45,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:45,336 INFO L85 PathProgramCache]: Analyzing trace with hash -697317652, now seen corresponding path program 2 times [2024-11-28 02:59:45,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:45,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089035890] [2024-11-28 02:59:45,337 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:59:45,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:45,372 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:59:45,372 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:59:45,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1292225534] [2024-11-28 02:59:45,374 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:59:45,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:45,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:59:45,378 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:59:45,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 02:59:45,464 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:59:45,464 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:59:45,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 02:59:45,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:59:45,683 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 02:59:45,683 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:59:46,170 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 02:59:46,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:46,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089035890] [2024-11-28 02:59:46,171 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:59:46,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292225534] [2024-11-28 02:59:46,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292225534] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:59:46,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:59:46,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-28 02:59:46,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933017323] [2024-11-28 02:59:46,176 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:59:46,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:59:46,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:46,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:59:46,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:59:46,178 INFO L87 Difference]: Start difference. First operand 769 states and 820 transitions. Second operand has 12 states, 11 states have (on average 21.454545454545453) internal successors, (236), 12 states have internal predecessors, (236), 9 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-28 02:59:46,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:59:46,910 INFO L93 Difference]: Finished difference Result 2098 states and 2254 transitions. [2024-11-28 02:59:46,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:59:46,911 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 21.454545454545453) internal successors, (236), 12 states have internal predecessors, (236), 9 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) Word has length 161 [2024-11-28 02:59:46,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:59:46,917 INFO L225 Difference]: With dead ends: 2098 [2024-11-28 02:59:46,917 INFO L226 Difference]: Without dead ends: 2097 [2024-11-28 02:59:46,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:59:46,919 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 322 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:59:46,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 648 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:59:46,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2097 states. [2024-11-28 02:59:47,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2097 to 1849. [2024-11-28 02:59:47,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1849 states, 1781 states have (on average 1.038742279618192) internal successors, (1850), 1782 states have internal predecessors, (1850), 64 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-28 02:59:47,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 1978 transitions. [2024-11-28 02:59:47,142 INFO L78 Accepts]: Start accepts. Automaton has 1849 states and 1978 transitions. Word has length 161 [2024-11-28 02:59:47,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:47,143 INFO L471 AbstractCegarLoop]: Abstraction has 1849 states and 1978 transitions. [2024-11-28 02:59:47,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 21.454545454545453) internal successors, (236), 12 states have internal predecessors, (236), 9 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-28 02:59:47,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1849 states and 1978 transitions. [2024-11-28 02:59:47,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-28 02:59:47,147 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:47,148 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2024-11-28 02:59:47,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-28 02:59:47,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:47,352 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 02:59:47,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:47,353 INFO L85 PathProgramCache]: Analyzing trace with hash -671458806, now seen corresponding path program 2 times [2024-11-28 02:59:47,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:47,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301481466] [2024-11-28 02:59:47,353 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:59:47,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:47,414 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:59:47,415 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 02:59:47,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1362372340] [2024-11-28 02:59:47,417 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:59:47,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:47,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:59:47,420 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:59:47,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 02:59:47,552 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:59:47,553 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:59:47,555 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-28 02:59:47,559 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:59:50,582 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 15 proven. 423 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-28 02:59:50,582 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:01:13,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:01:13,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301481466] [2024-11-28 03:01:13,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:01:13,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362372340] [2024-11-28 03:01:13,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362372340] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:01:13,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:01:13,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2024-11-28 03:01:13,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779248964] [2024-11-28 03:01:13,188 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:01:13,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 03:01:13,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:01:13,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 03:01:13,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=1317, Unknown=14, NotChecked=0, Total=1640 [2024-11-28 03:01:13,190 INFO L87 Difference]: Start difference. First operand 1849 states and 1978 transitions. Second operand has 24 states, 23 states have (on average 7.782608695652174) internal successors, (179), 24 states have internal predecessors, (179), 9 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-28 03:01:23,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:01:23,651 INFO L93 Difference]: Finished difference Result 2393 states and 2563 transitions. [2024-11-28 03:01:23,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-28 03:01:23,652 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 7.782608695652174) internal successors, (179), 24 states have internal predecessors, (179), 9 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) Word has length 217 [2024-11-28 03:01:23,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:01:23,657 INFO L225 Difference]: With dead ends: 2393 [2024-11-28 03:01:23,657 INFO L226 Difference]: Without dead ends: 2392 [2024-11-28 03:01:23,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 958 ImplicationChecksByTransitivity, 74.5s TimeCoverageRelationStatistics Valid=1685, Invalid=4621, Unknown=14, NotChecked=0, Total=6320 [2024-11-28 03:01:23,659 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 281 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 3792 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 3828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 3792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:01:23,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 321 Invalid, 3828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 3792 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-28 03:01:23,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2024-11-28 03:01:23,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 1785. [2024-11-28 03:01:23,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1785 states, 1719 states have (on average 1.038976148923793) internal successors, (1786), 1720 states have internal predecessors, (1786), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 03:01:23,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 1785 states and 1910 transitions. [2024-11-28 03:01:23,909 INFO L78 Accepts]: Start accepts. Automaton has 1785 states and 1910 transitions. Word has length 217 [2024-11-28 03:01:23,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:01:23,910 INFO L471 AbstractCegarLoop]: Abstraction has 1785 states and 1910 transitions. [2024-11-28 03:01:23,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 7.782608695652174) internal successors, (179), 24 states have internal predecessors, (179), 9 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-28 03:01:23,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1785 states and 1910 transitions. [2024-11-28 03:01:23,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-28 03:01:23,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:01:23,916 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:01:23,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-28 03:01:24,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-28 03:01:24,117 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:01:24,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:01:24,118 INFO L85 PathProgramCache]: Analyzing trace with hash 2143092938, now seen corresponding path program 1 times [2024-11-28 03:01:24,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:01:24,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165233263] [2024-11-28 03:01:24,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:01:24,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:01:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:01:25,039 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 152 proven. 548 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:01:25,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:01:25,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165233263] [2024-11-28 03:01:25,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165233263] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:01:25,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001894941] [2024-11-28 03:01:25,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:01:25,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:01:25,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:01:25,043 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:01:25,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 03:01:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:01:25,162 INFO L256 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:01:25,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:01:26,527 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 152 proven. 548 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:01:26,527 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:01:27,950 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 68 proven. 632 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:01:27,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001894941] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:01:27,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:01:27,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 45 [2024-11-28 03:01:27,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276875035] [2024-11-28 03:01:27,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:01:27,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-28 03:01:27,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:01:27,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-28 03:01:27,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=1618, Unknown=0, NotChecked=0, Total=1980 [2024-11-28 03:01:27,953 INFO L87 Difference]: Start difference. First operand 1785 states and 1910 transitions. Second operand has 45 states, 45 states have (on average 13.0) internal successors, (585), 45 states have internal predecessors, (585), 24 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 24 states have call predecessors, (27), 24 states have call successors, (27) [2024-11-28 03:01:34,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:01:34,638 INFO L93 Difference]: Finished difference Result 2578 states and 2762 transitions. [2024-11-28 03:01:34,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-28 03:01:34,639 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 13.0) internal successors, (585), 45 states have internal predecessors, (585), 24 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 24 states have call predecessors, (27), 24 states have call successors, (27) Word has length 275 [2024-11-28 03:01:34,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:01:34,651 INFO L225 Difference]: With dead ends: 2578 [2024-11-28 03:01:34,651 INFO L226 Difference]: Without dead ends: 2040 [2024-11-28 03:01:34,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 521 SyntacticMatches, 1 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2688 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1482, Invalid=6528, Unknown=0, NotChecked=0, Total=8010 [2024-11-28 03:01:34,656 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 223 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 3636 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 3705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:01:34,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 751 Invalid, 3705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3636 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 03:01:34,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2040 states. [2024-11-28 03:01:34,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2040 to 2008. [2024-11-28 03:01:34,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2008 states, 1933 states have (on average 1.0377651319192964) internal successors, (2006), 1934 states have internal predecessors, (2006), 71 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-28 03:01:34,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 2148 transitions. [2024-11-28 03:01:34,962 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 2148 transitions. Word has length 275 [2024-11-28 03:01:34,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:01:34,965 INFO L471 AbstractCegarLoop]: Abstraction has 2008 states and 2148 transitions. [2024-11-28 03:01:34,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 13.0) internal successors, (585), 45 states have internal predecessors, (585), 24 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 24 states have call predecessors, (27), 24 states have call successors, (27) [2024-11-28 03:01:34,966 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 2148 transitions. [2024-11-28 03:01:34,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-28 03:01:34,972 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:01:34,973 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:01:34,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 03:01:35,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-28 03:01:35,174 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:01:35,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:01:35,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1628901706, now seen corresponding path program 2 times [2024-11-28 03:01:35,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:01:35,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411557593] [2024-11-28 03:01:35,175 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:01:35,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:01:35,215 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:01:35,215 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:01:36,147 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 89 proven. 611 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:01:36,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:01:36,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411557593] [2024-11-28 03:01:36,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411557593] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:01:36,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795984848] [2024-11-28 03:01:36,149 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:01:36,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:01:36,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:01:36,152 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:01:36,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 03:01:36,288 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:01:36,288 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:01:36,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:01:36,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:01:37,010 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 521 proven. 134 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-28 03:01:37,011 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:01:37,785 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 461 proven. 134 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-28 03:01:37,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795984848] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:01:37,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:01:37,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 10, 10] total 33 [2024-11-28 03:01:37,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698284449] [2024-11-28 03:01:37,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:01:37,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-28 03:01:37,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:01:37,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-28 03:01:37,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=941, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:01:37,789 INFO L87 Difference]: Start difference. First operand 2008 states and 2148 transitions. Second operand has 33 states, 33 states have (on average 13.848484848484848) internal successors, (457), 33 states have internal predecessors, (457), 18 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 18 states have call predecessors, (23), 18 states have call successors, (23) [2024-11-28 03:01:44,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:01:44,145 INFO L93 Difference]: Finished difference Result 7021 states and 7543 transitions. [2024-11-28 03:01:44,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-28 03:01:44,145 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 13.848484848484848) internal successors, (457), 33 states have internal predecessors, (457), 18 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 18 states have call predecessors, (23), 18 states have call successors, (23) Word has length 275 [2024-11-28 03:01:44,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:01:44,160 INFO L225 Difference]: With dead ends: 7021 [2024-11-28 03:01:44,160 INFO L226 Difference]: Without dead ends: 6215 [2024-11-28 03:01:44,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 546 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1625 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=856, Invalid=5306, Unknown=0, NotChecked=0, Total=6162 [2024-11-28 03:01:44,164 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 139 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 3259 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 3310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 3259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:01:44,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 924 Invalid, 3310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 3259 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-28 03:01:44,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6215 states. [2024-11-28 03:01:45,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6215 to 5439. [2024-11-28 03:01:45,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5439 states, 5229 states have (on average 1.0378657487091223) internal successors, (5427), 5230 states have internal predecessors, (5427), 206 states have call successors, (206), 2 states have call predecessors, (206), 2 states have return successors, (206), 206 states have call predecessors, (206), 206 states have call successors, (206) [2024-11-28 03:01:45,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 5839 transitions. [2024-11-28 03:01:45,044 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 5839 transitions. Word has length 275 [2024-11-28 03:01:45,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:01:45,045 INFO L471 AbstractCegarLoop]: Abstraction has 5439 states and 5839 transitions. [2024-11-28 03:01:45,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 13.848484848484848) internal successors, (457), 33 states have internal predecessors, (457), 18 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 18 states have call predecessors, (23), 18 states have call successors, (23) [2024-11-28 03:01:45,046 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 5839 transitions. [2024-11-28 03:01:45,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-28 03:01:45,058 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:01:45,059 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:01:45,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-28 03:01:45,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-28 03:01:45,260 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:01:45,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:01:45,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1122197302, now seen corresponding path program 3 times [2024-11-28 03:01:45,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:01:45,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312356860] [2024-11-28 03:01:45,261 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:01:45,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:01:45,357 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-28 03:01:45,357 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:01:46,642 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 74 proven. 635 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-28 03:01:46,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:01:46,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312356860] [2024-11-28 03:01:46,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312356860] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:01:46,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944954057] [2024-11-28 03:01:46,643 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:01:46,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:01:46,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:01:46,645 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:01:46,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 03:01:46,903 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 03:01:46,903 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:01:46,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 03:01:46,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:01:49,987 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 3 proven. 639 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-28 03:01:49,987 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:01:51,551 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 3 proven. 639 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-28 03:01:51,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944954057] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:01:51,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:01:51,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11, 11] total 37 [2024-11-28 03:01:51,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990958566] [2024-11-28 03:01:51,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:01:51,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-28 03:01:51,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:01:51,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-28 03:01:51,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1203, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 03:01:51,554 INFO L87 Difference]: Start difference. First operand 5439 states and 5839 transitions. Second operand has 37 states, 37 states have (on average 15.243243243243244) internal successors, (564), 37 states have internal predecessors, (564), 24 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (30), 24 states have call predecessors, (30), 24 states have call successors, (30) [2024-11-28 03:02:03,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:03,852 INFO L93 Difference]: Finished difference Result 19817 states and 21315 transitions. [2024-11-28 03:02:03,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-28 03:02:03,853 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 15.243243243243244) internal successors, (564), 37 states have internal predecessors, (564), 24 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (30), 24 states have call predecessors, (30), 24 states have call successors, (30) Word has length 275 [2024-11-28 03:02:03,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:03,910 INFO L225 Difference]: With dead ends: 19817 [2024-11-28 03:02:03,910 INFO L226 Difference]: Without dead ends: 18975 [2024-11-28 03:02:03,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1583 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1242, Invalid=5564, Unknown=0, NotChecked=0, Total=6806 [2024-11-28 03:02:03,918 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 621 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 5101 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 1576 SdHoareTripleChecker+Invalid, 5153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 5101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:03,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 1576 Invalid, 5153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 5101 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-28 03:02:03,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18975 states. [2024-11-28 03:02:05,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18975 to 13322. [2024-11-28 03:02:05,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13322 states, 12807 states have (on average 1.0352151167330366) internal successors, (13258), 12808 states have internal predecessors, (13258), 511 states have call successors, (511), 2 states have call predecessors, (511), 2 states have return successors, (511), 511 states have call predecessors, (511), 511 states have call successors, (511) [2024-11-28 03:02:05,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13322 states to 13322 states and 14280 transitions. [2024-11-28 03:02:05,690 INFO L78 Accepts]: Start accepts. Automaton has 13322 states and 14280 transitions. Word has length 275 [2024-11-28 03:02:05,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:05,691 INFO L471 AbstractCegarLoop]: Abstraction has 13322 states and 14280 transitions. [2024-11-28 03:02:05,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 15.243243243243244) internal successors, (564), 37 states have internal predecessors, (564), 24 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (30), 24 states have call predecessors, (30), 24 states have call successors, (30) [2024-11-28 03:02:05,692 INFO L276 IsEmpty]: Start isEmpty. Operand 13322 states and 14280 transitions. [2024-11-28 03:02:05,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-28 03:02:05,704 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:05,704 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 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] [2024-11-28 03:02:05,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-28 03:02:05,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-28 03:02:05,905 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:02:05,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:05,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1623100204, now seen corresponding path program 3 times [2024-11-28 03:02:05,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:05,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337713042] [2024-11-28 03:02:05,905 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:02:05,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:06,146 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-28 03:02:06,147 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:02:06,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1658844423] [2024-11-28 03:02:06,150 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:02:06,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:06,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:06,153 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:06,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 03:02:06,317 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 03:02:06,317 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:02:06,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 03:02:06,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:57,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 270 proven. 143 refuted. 0 times theorem prover too weak. 996 trivial. 0 not checked. [2024-11-28 03:02:57,418 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:03:24,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:24,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337713042] [2024-11-28 03:03:24,327 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:03:24,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658844423] [2024-11-28 03:03:24,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658844423] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:03:24,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:03:24,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 03:03:24,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876904155] [2024-11-28 03:03:24,328 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:03:24,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:03:24,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:24,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:03:24,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=480, Unknown=5, NotChecked=0, Total=600 [2024-11-28 03:03:24,330 INFO L87 Difference]: Start difference. First operand 13322 states and 14280 transitions. Second operand has 16 states, 15 states have (on average 6.066666666666666) internal successors, (91), 16 states have internal predecessors, (91), 5 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-28 03:03:27,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:03:30,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:03:32,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:03:53,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:03:58,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:00,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:03,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:11,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:13,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:15,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:05:04,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-28 03:05:06,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:05:06,446 INFO L93 Difference]: Finished difference Result 15830 states and 16961 transitions. [2024-11-28 03:05:06,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 03:05:06,446 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.066666666666666) internal successors, (91), 16 states have internal predecessors, (91), 5 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 335 [2024-11-28 03:05:06,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:05:06,485 INFO L225 Difference]: With dead ends: 15830 [2024-11-28 03:05:06,485 INFO L226 Difference]: Without dead ends: 15829 [2024-11-28 03:05:06,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 87.7s TimeCoverageRelationStatistics Valid=383, Invalid=1092, Unknown=7, NotChecked=0, Total=1482 [2024-11-28 03:05:06,490 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 169 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:05:06,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 243 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 55.8s Time] [2024-11-28 03:05:06,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15829 states. [2024-11-28 03:05:08,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15829 to 13310. [2024-11-28 03:05:08,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13310 states, 12795 states have (on average 1.0351699882766705) internal successors, (13245), 12796 states have internal predecessors, (13245), 511 states have call successors, (511), 2 states have call predecessors, (511), 2 states have return successors, (511), 511 states have call predecessors, (511), 511 states have call successors, (511) [2024-11-28 03:05:08,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13310 states to 13310 states and 14267 transitions. [2024-11-28 03:05:08,267 INFO L78 Accepts]: Start accepts. Automaton has 13310 states and 14267 transitions. Word has length 335 [2024-11-28 03:05:08,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:05:08,268 INFO L471 AbstractCegarLoop]: Abstraction has 13310 states and 14267 transitions. [2024-11-28 03:05:08,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.066666666666666) internal successors, (91), 16 states have internal predecessors, (91), 5 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-28 03:05:08,268 INFO L276 IsEmpty]: Start isEmpty. Operand 13310 states and 14267 transitions. [2024-11-28 03:05:08,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-11-28 03:05:08,278 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:05:08,279 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:05:08,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-28 03:05:08,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-28 03:05:08,480 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-28 03:05:08,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:08,480 INFO L85 PathProgramCache]: Analyzing trace with hash 590753636, now seen corresponding path program 1 times [2024-11-28 03:05:08,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:08,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633382149] [2024-11-28 03:05:08,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:05:08,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:05:08,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [953373310] [2024-11-28 03:05:08,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:05:08,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:05:08,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:05:08,559 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:05:08,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45df965-8ac3-4b22-83f0-a14207368b6f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 03:05:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:05:08,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-28 03:05:08,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:08:27,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1667 backedges. 785 proven. 629 refuted. 48 times theorem prover too weak. 205 trivial. 0 not checked. [2024-11-28 03:08:27,884 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:08:32,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:08:32,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633382149] [2024-11-28 03:08:32,875 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:08:32,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953373310] [2024-11-28 03:08:32,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953373310] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:08:32,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:08:32,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2024-11-28 03:08:32,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932965012] [2024-11-28 03:08:32,875 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:08:32,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-28 03:08:32,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:08:32,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-28 03:08:32,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=625, Invalid=2664, Unknown=17, NotChecked=0, Total=3306 [2024-11-28 03:08:32,879 INFO L87 Difference]: Start difference. First operand 13310 states and 14267 transitions. Second operand has 34 states, 33 states have (on average 9.121212121212121) internal successors, (301), 33 states have internal predecessors, (301), 14 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2024-11-28 03:08:37,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:08:42,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:08:44,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:08:48,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:08:52,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:08:56,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:08:58,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:09:02,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:09:06,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:09:09,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:09:13,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:09:16,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:09:18,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:09:23,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:09:27,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:09:32,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:09:37,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:09:39,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:09:44,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:09:47,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:09:51,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:09:55,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:09:59,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:10:03,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:10:07,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:10:10,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:10:14,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:10:17,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:10:18,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]